api.chainmarket-api.workers.dev: x402 purchase results on Base, latest attempt 2026-11-12 on XRPL

174 Base listings. Latest result about the seller at each listing: 13 delivered · 0 failed on the seller's side · 0 with no such result among the attempts shown · 161 with no Base purchase. This counts, for each listing, the newest Base purchase that delivered or the newest Base failure on the seller's side. Attempts on vet402's side, not bought, not sorted, or awaiting on-chain verification are skipped.

Also bought on other chains: 32 listings (Celo 13, Stellar 13, XRPL 3, Avalanche C-Chain 2, Arc 1). Each card lists them under Other chains.

By the latest attempt at each listing, whatever it was: 11 delivered · 0 failed on the seller's side · 0 on vet402's side · 2 not sorted (vet402 cannot show the failure was not its own) · 161 with no Base purchase.

Latest attempt on XRPL: 2026-11-12 09:30 UTC. This page read the ledger at 2026-11-12 15:48 UTC and reuses that read for up to 5 min. The first view after a quiet period can show an older read.

[![vet402 record for api.chainmarket-api.workers.dev](https://vet402.com/api/badge/host/api.chainmarket-api.workers.dev.svg)](https://vet402.com/sellers/api.chainmarket-api.workers.dev)

<a href="https://vet402.com/sellers/api.chainmarket-api.workers.dev"><img src="https://vet402.com/api/badge/host/api.chainmarket-api.workers.dev.svg" alt="vet402 record for api.chainmarket-api.workers.dev" height="38"></a>

Rows marked census or retest were bought to give this seller a row of its own, to buy again after a failure on vet402's side, or to read again a listing whose latest delivery missed declared keys.

1.Your listings

1. api.chainmarket-api.workers.dev/api/finance/stockanalysisGET

   Latest attempt

   not tried on Base yet

   Result

   not tried on Base yet

   Whose side

   not tried on Base yet

   Other chains

   XRPL, 2026-11-12 09:30 UTC, settled, HTTP 200 transaction

   Decision API now: asking… · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 16:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 16:40 UTC (within 120 hours of the last).
   No Base purchase is on this listing.

   After a fixNext purchase by vet402: Not before 2026-11-18 09:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/finance/stockanalysis": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/finance/stockanalysis": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "<...>",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/finance/stockanalysis": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("<...>", ExactEvmServerScheme())
   
   routes = {
       "GET /api/finance/stockanalysis": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "<...>",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

2. api.chainmarket-api.workers.dev/api/crypto/coingecko-market-depthGET

   Latest attempt

   not tried on Base yet

   Result

   not tried on Base yet

   Whose side

   not tried on Base yet

   Other chains

   Celo, 2026-11-12 06:00 UTC, settled, HTTP 200 transaction

   Decision API now: asking… · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:30 UTC (within 120 hours of the last).
   No Base purchase is on this listing.

   After a fixNext purchase by vet402: Not before 2026-11-18 06:00 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/coingecko-market-depth": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/crypto/coingecko-market-depth": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "<...>",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/coingecko-market-depth": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("<...>", ExactEvmServerScheme())
   
   routes = {
       "GET /api/crypto/coingecko-market-depth": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "<...>",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

3. api.chainmarket-api.workers.dev/api/crypto/ton-blockchain-jettonsGET

   Latest attempt

   not tried on Base yet

   Result

   not tried on Base yet

   Whose side

   not tried on Base yet

   Other chains

   XRPL, 2026-11-12 06:00 UTC, settled, HTTP 200 transaction

   Decision API now: ask for this listing · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 13:40 UTC (within 120 hours of the last).
   No Base purchase is on this listing.

   After a fixNext purchase by vet402: Not before 2026-12-12 06:00 UTC (this listing has 3 or more settled purchases, so it is bought at most once every 30 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/ton-blockchain-jettons": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/crypto/ton-blockchain-jettons": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "<...>",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/ton-blockchain-jettons": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("<...>", ExactEvmServerScheme())
   
   routes = {
       "GET /api/crypto/ton-blockchain-jettons": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "<...>",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

4. api.chainmarket-api.workers.dev/api/finance/coinmarketcapGET

   Latest attempt

   not tried on Base yet

   Result

   not tried on Base yet

   Whose side

   not tried on Base yet

   Other chains

   Stellar, 2026-11-10 12:01 UTC, settled, HTTP 200 transaction

   Decision API now: ask for this listing · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-12 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-17 13:40 UTC (within 120 hours of the last).
   No Base purchase is on this listing.

   After a fixNext purchase by vet402: Not before 2026-11-16 12:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/finance/coinmarketcap": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/finance/coinmarketcap": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "<...>",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/finance/coinmarketcap": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("<...>", ExactEvmServerScheme())
   
   routes = {
       "GET /api/finance/coinmarketcap": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "<...>",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

5. api.chainmarket-api.workers.dev/api/crypto/bitcoin-hashrate-difficultyGET

   On 2026-11-10 12:01 UTC, vet402 signed a payment and the paid request answered HTTP 503. This row is not on the seller's side yet, because that needs such a failure (a failure vet402 can show was not its own) at this listing on two different UTC days. If the failure is real, check the route's logs, and the next purchase by vet402 is not before 2026-11-16 12:01 UTC, with no booked time. After that it depends on the daily budget and the order of demand.

   Latest attempt

   2026-11-10 12:01 UTC

   Result

   Server error on the paid request

   Whose side

   not sorted: one failure so far

   Decision API now: ask for this listing · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 22:40 UTC (within 120 hours of the last).
   What vet402 saw: vet402 signed the payment and the paid request got a 5xx.Last result about the seller: delivered on 2026-11-04 09:30 UTC. The latest attempt is not sorted. There has been no attempt since.The 402 terms vet402 signed: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0xd881…6a54 · validBefore not recorded.Answer to the paid request: HTTP 503 · Content-Type application/json · no PAYMENT-RESPONSE recorded.What to fix: This page does not count it as the seller's fault. vet402 puts a failure on the seller's side only after it sees one at this listing on two different days (UTC). If this one is real: Check the route's logs: the handler or its upstream failed on the paid request.Recorded (L1 attempt, vet402 signed a payment, not settled on-chain): settle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 503 · no txIn export.csv?days=4: the row with attempted_at 2026-11-10T12:01:48Z and resource_key api.chainmarket-api.workers.dev/api/crypto/bitcoin-hashrate-difficulty.

   After a fixNext purchase by vet402: Not before 2026-11-16 12:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/bitcoin-hashrate-difficulty": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "eip155:8453",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/crypto/bitcoin-hashrate-difficulty": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "eip155:8453",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/bitcoin-hashrate-difficulty": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "eip155:8453",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("eip155:8453", ExactEvmServerScheme())
   
   routes = {
       "GET /api/crypto/bitcoin-hashrate-difficulty": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "eip155:8453",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

   Earlier attempts

   1. 2026-11-04 09:30 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x47ea0593…b30e
      What vet402 recorded

      Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x7088…e51b · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
      Dispute this purchase
6. api.chainmarket-api.workers.dev/api/crypto/bitcoin-mempool-statsGET

   Latest Base attempt

   2026-11-04 08:31 UTC

   Result

   delivered

   Whose side

   no failure (delivered)

   Other chains

   Celo, 2026-11-10 09:30 UTC, settle_failed, HTTP 503

   Decision API now: ask for this listing · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 22:40 UTC (within 120 hours of the last).
   What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x6e6b…bbf4 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x83ae5660…30f2In export.csv?days=10: the row with attempted_at 2026-11-04T08:31:18Z and resource_key api.chainmarket-api.workers.dev/api/crypto/bitcoin-mempool-stats.

   After a fixNext purchase by vet402: Not before 2026-11-16 09:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.The time filled in for the dispute is the latest Base attempt.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/bitcoin-mempool-stats": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "eip155:8453",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/crypto/bitcoin-mempool-stats": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "eip155:8453",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/bitcoin-mempool-stats": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "eip155:8453",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("eip155:8453", ExactEvmServerScheme())
   
   routes = {
       "GET /api/crypto/bitcoin-mempool-stats": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "eip155:8453",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

7. api.chainmarket-api.workers.dev/api/crypto/defillama-yieldsGET

   Latest attempt

   not tried on Base yet

   Result

   not tried on Base yet

   Whose side

   not tried on Base yet

   Other chains

   Arc, 2026-11-10 03:31 UTC, settled, HTTP 200 transaction

   Decision API now: ask for this listing · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 16:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 16:40 UTC (within 120 hours of the last).
   No Base purchase is on this listing.

   After a fixNext purchase by vet402: Not before 2026-12-10 03:31 UTC (this listing has 3 or more settled purchases, so it is bought at most once every 30 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/defillama-yields": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/crypto/defillama-yields": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "<...>",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/defillama-yields": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("<...>", ExactEvmServerScheme())
   
   routes = {
       "GET /api/crypto/defillama-yields": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "<...>",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

8. api.chainmarket-api.workers.dev/api/crypto/coinbase-spot-exchangeGET

   Latest Base attempt

   2026-11-03 20:31 UTC

   Result

   delivered

   Whose side

   no failure (delivered)

   Other chains

   Celo, 2026-11-09 21:30 UTC, settled, HTTP 200 transaction

   Decision API now: ask for this listing · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 16:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 16:40 UTC (within 120 hours of the last).
   What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0xa6d7…3519 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x9d36382f…5069In export.csv?days=10: the row with attempted_at 2026-11-03T20:31:17Z and resource_key api.chainmarket-api.workers.dev/api/crypto/coinbase-spot-exchange.

   After a fixNext purchase by vet402: Not before 2026-11-15 21:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.The time filled in for the dispute is the latest Base attempt.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/coinbase-spot-exchange": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "eip155:8453",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/crypto/coinbase-spot-exchange": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "eip155:8453",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/coinbase-spot-exchange": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "eip155:8453",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("eip155:8453", ExactEvmServerScheme())
   
   routes = {
       "GET /api/crypto/coinbase-spot-exchange": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "eip155:8453",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

9. api.chainmarket-api.workers.dev/api/crypto/tether-treasury-burnsGET

   Latest attempt

   not tried on Base yet

   Result

   not tried on Base yet

   Whose side

   not tried on Base yet

   Other chains

   Stellar, 2026-11-09 15:30 UTC, settled, HTTP 200 transaction

   Decision API now: ask for this listing · the full answer
   Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
   No Base purchase is on this listing.

   After a fixNext purchase by vet402: Not before 2026-11-15 15:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

   Fix code for Express, Next.js, Hono and FastAPI

   Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

   Express

   import { paymentMiddleware, x402ResourceServer } from "@x402/express"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/tether-treasury-burns": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   Next.js (app router)

   import { withX402, x402ResourceServer } from "@x402/next"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   import { NextRequest, NextResponse } from "next/server"
   
   const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
   
   const handler = async (request: NextRequest) => {
     return NextResponse.json({ ok: true })
   }
   
   export const GET = withX402(
     handler,
     {
       "/api/crypto/tether-treasury-burns": {
         accepts: {
           scheme: "exact",
           payTo: "<...>",
           price: { amount: "2000", asset: "<...>" },
           network: "<...>",
         },
       },
     },
     server,
   )

   Hono

   import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
   import { ExactEvmScheme } from "@x402/evm/exact/server"
   import { HTTPFacilitatorClient } from "@x402/core/server"
   
   const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
   const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
   
   app.use(
     paymentMiddleware(
       {
         "GET /api/crypto/tether-treasury-burns": {
           accepts: {
             scheme: "exact",
             payTo: "<...>",
             price: { amount: "2000", asset: "<...>" },
             network: "<...>",
           },
         },
       },
       server,
     ),
   )

   FastAPI

   from fastapi import FastAPI
   from x402 import x402ResourceServer
   from x402.http import HTTPFacilitatorClient
   from x402.http.middleware.fastapi import payment_middleware
   from x402.mechanisms.evm.exact import ExactEvmServerScheme
   
   app = FastAPI()
   facilitator = HTTPFacilitatorClient()
   server = x402ResourceServer(facilitator)
   server.register("<...>", ExactEvmServerScheme())
   
   routes = {
       "GET /api/crypto/tether-treasury-burns": {
           "accepts": {
               "scheme": "exact",
               "payTo": "<...>",
               "price": {"amount": "2000", "asset": "<...>"},
               "network": "<...>",
           },
       },
   }
   
   @app.middleware("http")
   async def x402_middleware(request, call_next):
       return await payment_middleware(routes, server)(request, call_next)

10. api.chainmarket-api.workers.dev/api/finance/sec-nport-mutual-fund-holdingsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-09 12:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-15 12:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/sec-nport-mutual-fund-holdings": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/sec-nport-mutual-fund-holdings": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/sec-nport-mutual-fund-holdings": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/sec-nport-mutual-fund-holdings": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

11. api.chainmarket-api.workers.dev/api/crypto/circle-cctp-transfersGET

    Latest attempt

    2026-11-09 12:01 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x657a…3eea · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0xd1842384…5dbbIn export.csv?days=5: the row with attempted_at 2026-11-09T12:01:40Z and resource_key api.chainmarket-api.workers.dev/api/crypto/circle-cctp-transfers.

    After a fixNext purchase by vet402: Not before 2026-11-15 12:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/circle-cctp-transfers": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/circle-cctp-transfers": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/circle-cctp-transfers": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/circle-cctp-transfers": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-03 00:01 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0xfcd4b430…f2a0
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x978c…1aba · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
12. api.chainmarket-api.workers.dev/api/crypto/compound-market-statsGET

    Latest attempt

    2026-11-09 12:00 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0xae46…6b6d · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x781d9833…7d86In export.csv?days=5: the row with attempted_at 2026-11-09T12:00:55Z and resource_key api.chainmarket-api.workers.dev/api/crypto/compound-market-stats.

    After a fixNext purchase by vet402: Not before 2026-11-15 12:00 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/compound-market-stats": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/compound-market-stats": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/compound-market-stats": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/compound-market-stats": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-03 00:00 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x35304ee0…7cc1
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x1a0e…8f1e · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
13. api.chainmarket-api.workers.dev/api/crypto/chainlink-price-feedsGET

    Latest attempt

    2026-11-09 09:31 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0xa58a…8745 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0xeb11546b…25d8In export.csv?days=5: the row with attempted_at 2026-11-09T09:31:38Z and resource_key api.chainmarket-api.workers.dev/api/crypto/chainlink-price-feeds.

    After a fixNext purchase by vet402: Not before 2026-11-15 09:31 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/chainlink-price-feeds": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/chainlink-price-feeds": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/chainlink-price-feeds": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/chainlink-price-feeds": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-02 21:30 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x5ebb9e1c…1dba
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x7077…4315 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
14. api.chainmarket-api.workers.dev/api/crypto/crypto-fundraising-roundsGET

    Latest attempt

    2026-11-09 09:31 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-12 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-17 13:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x8e85…4be5 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0xb42f9d56…271bIn export.csv?days=5: the row with attempted_at 2026-11-09T09:31:10Z and resource_key api.chainmarket-api.workers.dev/api/crypto/crypto-fundraising-rounds.

    After a fixNext purchase by vet402: Not before 2026-11-15 09:31 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/crypto-fundraising-rounds": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/crypto-fundraising-rounds": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/crypto-fundraising-rounds": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/crypto-fundraising-rounds": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-02 18:01 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x2e23dc5b…384b
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x5e9f…b272 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
15. api.chainmarket-api.workers.dev/api/crypto/basescan-contract-eventsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-09 09:30 UTC, settle_failed, HTTP 503

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 22:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-15 09:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/basescan-contract-events": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/basescan-contract-events": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/basescan-contract-events": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/basescan-contract-events": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

16. api.chainmarket-api.workers.dev/api/crypto/cowswap-batch-auctionsGET

    Latest attempt

    2026-11-09 03:31 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-12 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-17 13:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x9d43…3db7 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0xf6e1a706…1200In export.csv?days=5: the row with attempted_at 2026-11-09T03:31:27Z and resource_key api.chainmarket-api.workers.dev/api/crypto/cowswap-batch-auctions.

    After a fixNext purchase by vet402: Not before 2026-11-15 03:31 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/cowswap-batch-auctions": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/cowswap-batch-auctions": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/cowswap-batch-auctions": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/cowswap-batch-auctions": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-02 18:01 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x45dd8583…6583
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0xe028…4745 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
17. api.chainmarket-api.workers.dev/api/crypto/smart-contract-verifyGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-09 03:31 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 16:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 16:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-15 03:31 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/smart-contract-verify": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/smart-contract-verify": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/smart-contract-verify": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/smart-contract-verify": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

18. api.chainmarket-api.workers.dev/api/crypto/binance-orderbook-depthGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-09 00:01 UTC, settle_failed

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-12 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-17 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-15 00:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/binance-orderbook-depth": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/binance-orderbook-depth": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/binance-orderbook-depth": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/binance-orderbook-depth": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

19. api.chainmarket-api.workers.dev/api/crypto/blast-gold-pointsGET

    Latest attempt

    2026-11-09 00:00 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-12 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-17 13:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x2dca…9dad · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x2149b8fa…7220In export.csv?days=5: the row with attempted_at 2026-11-09T00:00:57Z and resource_key api.chainmarket-api.workers.dev/api/crypto/blast-gold-points.

    After a fixNext purchase by vet402: Not before 2026-11-15 00:00 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/blast-gold-points": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/blast-gold-points": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/blast-gold-points": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/blast-gold-points": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-02 15:31 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x7b12a75f…f054
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x3641…d86f · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
20. api.chainmarket-api.workers.dev/api/crypto/cross-chain-bridge-flowsGET

    On 2026-11-08 21:31 UTC, vet402 signed a payment and the paid request answered HTTP 503. This row is not on the seller's side yet, because that needs such a failure (a failure vet402 can show was not its own) at this listing on two different UTC days. If the failure is real, check the route's logs, and the next purchase by vet402 is not before 2026-11-14 21:31 UTC, with no booked time. After that it depends on the daily budget and the order of demand.

    Latest attempt

    2026-11-08 21:31 UTC

    Result

    Server error on the paid request

    Whose side

    not sorted: one failure so far

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:40 UTC (within 120 hours of the last).
    What vet402 saw: vet402 signed the payment and the paid request got a 5xx.Last result about the seller: delivered on 2026-11-02 15:30 UTC. The latest attempt is not sorted. There has been no attempt since.The 402 terms vet402 signed: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x4b0f…959e · validBefore not recorded.Answer to the paid request: HTTP 503 · Content-Type application/json · no PAYMENT-RESPONSE recorded.What to fix: This page does not count it as the seller's fault. vet402 puts a failure on the seller's side only after it sees one at this listing on two different days (UTC). If this one is real: Check the route's logs: the handler or its upstream failed on the paid request.Recorded (L1 attempt, vet402 signed a payment, not settled on-chain): settle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 503 · no txIn export.csv?days=5: the row with attempted_at 2026-11-08T21:31:42Z and resource_key api.chainmarket-api.workers.dev/api/crypto/cross-chain-bridge-flows.

    After a fixNext purchase by vet402: Not before 2026-11-14 21:31 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/cross-chain-bridge-flows": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/cross-chain-bridge-flows": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/cross-chain-bridge-flows": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/cross-chain-bridge-flows": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-02 15:30 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x8434dd4a…ff56
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0xcea1…0533 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
21. api.chainmarket-api.workers.dev/api/crypto/whale-alert-transfersGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-08 15:30 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 16:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 16:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-14 15:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/whale-alert-transfers": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/whale-alert-transfers": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/whale-alert-transfers": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/whale-alert-transfers": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

22. api.chainmarket-api.workers.dev/api/crypto/convex-vlcvx-votingGET

    Latest attempt

    2026-11-08 15:30 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x49de…dab6 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x4d38d33b…2dbaIn export.csv?days=6: the row with attempted_at 2026-11-08T15:30:41Z and resource_key api.chainmarket-api.workers.dev/api/crypto/convex-vlcvx-voting.

    After a fixNext purchase by vet402: Not before 2026-11-14 15:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/convex-vlcvx-voting": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/convex-vlcvx-voting": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/convex-vlcvx-voting": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/convex-vlcvx-voting": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-11-02 12:01 UTC · delivered · no failure (delivered)settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x87aa938d…02dd
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x6662…4866 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
23. api.chainmarket-api.workers.dev/api/finance/pitchbook-scraper-fund-dataGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-07 21:30 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 22:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-13 21:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/pitchbook-scraper-fund-data": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "5000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/pitchbook-scraper-fund-data": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "5000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/pitchbook-scraper-fund-data": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "5000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/pitchbook-scraper-fund-data": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "5000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

24. api.chainmarket-api.workers.dev/api/crypto/honeypot-detectorGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-07 21:30 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 04:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 04:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-13 21:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/honeypot-detector": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/honeypot-detector": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/honeypot-detector": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/honeypot-detector": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

25. api.chainmarket-api.workers.dev/api/crypto/sui-move-objectsGET

    Latest attempt

    2026-11-07 18:01 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Other chains

    Stellar, 2026-11-01 15:31 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 22:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query empty. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x99c2…4131 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x3a3d6c27…57b0In export.csv?days=6: the row with attempted_at 2026-11-07T18:01:02Z and resource_key api.chainmarket-api.workers.dev/api/crypto/sui-move-objects.

    After a fixNext purchase by vet402: Not before 2026-11-13 18:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/sui-move-objects": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/sui-move-objects": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/sui-move-objects": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/sui-move-objects": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

26. api.chainmarket-api.workers.dev/api/finance/alpha-vantage-publicGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    XRPL, 2026-11-07 18:00 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 22:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-13 18:00 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/alpha-vantage-public": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/alpha-vantage-public": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/alpha-vantage-public": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/alpha-vantage-public": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

27. api.chainmarket-api.workers.dev/api/finance/coingeckoGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-07 12:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-13 12:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/coingecko": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/coingecko": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/coingecko": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/coingecko": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

28. api.chainmarket-api.workers.dev/api/finance/nomics-cryptoGET

    Latest attempt

    2026-11-07 09:31 UTC

    Result

    delivered

    Whose side

    no failure (delivered)

    Other chains

    Stellar, 2026-10-31 18:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 13:40 UTC (within 120 hours of the last).
    What vet402 saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x3ee0…b4cf · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.Recorded (L1 paid purchase): settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0xe28a0b1a…cca8In export.csv?days=7: the row with attempted_at 2026-11-07T09:31:09Z and resource_key api.chainmarket-api.workers.dev/api/finance/nomics-crypto.

    After a fixNext purchase by vet402: Not before 2026-12-07 09:31 UTC (this listing has 3 or more settled purchases, so it is bought at most once every 30 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/nomics-crypto": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("eip155:8453", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/nomics-crypto": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "eip155:8453",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("eip155:8453", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/nomics-crypto": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "eip155:8453",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("eip155:8453", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/nomics-crypto": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "eip155:8453",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

    Earlier attempts

    1. 2026-10-25 11:31 UTC · delivered · no failure (delivered) [census]settled (vet402 re-read the transfer on-chain in that chain's pinned settlement asset) · HTTP 200 · tx 0x7360920c…90f1 · bought by the census
       What vet402 recorded

       Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: exact · 0.002 USDC · payTo 0xb849…eafa. Input sent: body none, query declared. The listing's maxTimeoutSeconds is 300. vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xb849…eafa · nonce 0x01ea…79bf · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
       Dispute this purchase
29. api.chainmarket-api.workers.dev/api/finance/leboncoinGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Avalanche C-Chain, 2026-11-07 09:30 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-13 09:30 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/leboncoin": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "30000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/leboncoin": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "30000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/leboncoin": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "30000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/leboncoin": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "30000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

30. api.chainmarket-api.workers.dev/api/crypto/debank-wallet-portfolioGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-06 18:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 04:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 04:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-12 18:01 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/debank-wallet-portfolio": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/debank-wallet-portfolio": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/debank-wallet-portfolio": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/debank-wallet-portfolio": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

31. api.chainmarket-api.workers.dev/api/crypto/coinmarketcap-listingsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-06 18:00 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 04:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 04:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: Not before 2026-11-12 18:00 UTC (a listing is bought at most once every 6 days). After that it depends on the daily budget and the order of demand, so this is the earliest date, not a booking.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/coinmarketcap-listings": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/coinmarketcap-listings": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/coinmarketcap-listings": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/coinmarketcap-listings": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

32. api.chainmarket-api.workers.dev/api/crypto/defillama-stablecoinsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-06 12:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-12 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-17 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-12 12:01 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/defillama-stablecoins": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/defillama-stablecoins": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/defillama-stablecoins": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/defillama-stablecoins": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

33. api.chainmarket-api.workers.dev/api/dev/morningstarGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-06 12:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-12 12:01 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/dev/morningstar": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/dev/morningstar": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/dev/morningstar": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/dev/morningstar": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

34. api.chainmarket-api.workers.dev/api/crypto/token-holder-concentrationGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-06 09:31 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-12 09:31 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/token-holder-concentration": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/token-holder-concentration": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/token-holder-concentration": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/token-holder-concentration": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

35. api.chainmarket-api.workers.dev/api/finance/norges-bank-norwayGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-06 06:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-12 06:01 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/norges-bank-norway": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/norges-bank-norway": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/norges-bank-norway": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/norges-bank-norway": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

36. api.chainmarket-api.workers.dev/api/crypto/dex-pool-liquidityGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-05 21:31 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-11 21:31 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/dex-pool-liquidity": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/dex-pool-liquidity": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/dex-pool-liquidity": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/dex-pool-liquidity": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

37. api.chainmarket-api.workers.dev/api/finance/bank-of-england-iadbGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-05 06:01 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 16:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 16:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-11 06:01 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/bank-of-england-iadb": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/bank-of-england-iadb": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/bank-of-england-iadb": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/bank-of-england-iadb": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

38. api.chainmarket-api.workers.dev/api/crypto/crypto-liquidations-feedGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Stellar, 2026-11-04 21:31 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-10 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-15 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-10 21:31 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/crypto-liquidations-feed": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/crypto-liquidations-feed": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/crypto-liquidations-feed": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/crypto-liquidations-feed": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

39. api.chainmarket-api.workers.dev/api/finance/bstockGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-11-04 21:30 UTC, settled, HTTP 200 transaction

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 13:40 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 13:40 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-10 21:30 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/bstock": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "20000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/bstock": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "20000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/bstock": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "20000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/bstock": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "20000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

40. api.chainmarket-api.workers.dev/api/finance/pitchbook-investorsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Avalanche C-Chain, 2026-11-04 09:31 UTC, settle_failed, HTTP 402

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-12 00:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-17 00:30 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-10 09:31 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/pitchbook-investors": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "5000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/pitchbook-investors": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "5000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/pitchbook-investors": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "5000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/pitchbook-investors": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "5000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

41. api.chainmarket-api.workers.dev/api/finance/mexc-tickersGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Other chains

    Celo, 2026-10-26 12:01 UTC, settle_failed, HTTP 402

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 18:31 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 18:31 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixNext purchase by vet402: The regular sweep can pick this listing again since 2026-11-01 12:01 UTC (a listing is bought at most once every 6 days). When it does depends on the daily budget and the order of demand, so there is no booked date.Email me when this result changesDispute this purchaseA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/mexc-tickers": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/finance/mexc-tickers": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/finance/mexc-tickers": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/finance/mexc-tickers": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

42. api.chainmarket-api.workers.dev/api/crypto/1inch-pathfinder-quotesGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 18:31 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 18:31 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/1inch-pathfinder-quotes": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/1inch-pathfinder-quotes": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/1inch-pathfinder-quotes": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/1inch-pathfinder-quotes": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

43. api.chainmarket-api.workers.dev/api/crypto/aave-lending-marketsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 18:31 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 18:31 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/aave-lending-markets": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/aave-lending-markets": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/aave-lending-markets": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/aave-lending-markets": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

44. api.chainmarket-api.workers.dev/api/crypto/arbiscan-l2-rollupGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 18:31 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 18:31 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/arbiscan-l2-rollup": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/arbiscan-l2-rollup": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/arbiscan-l2-rollup": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/arbiscan-l2-rollup": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

45. api.chainmarket-api.workers.dev/api/crypto/balancer-v2-poolsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:30 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/balancer-v2-pools": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/balancer-v2-pools": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/balancer-v2-pools": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/balancer-v2-pools": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

46. api.chainmarket-api.workers.dev/api/crypto/berachain-pol-validatorsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 22:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 22:30 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/berachain-pol-validators": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/berachain-pol-validators": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/berachain-pol-validators": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/berachain-pol-validators": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

47. api.chainmarket-api.workers.dev/api/crypto/btc-blockGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 02:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 02:30 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-block": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/btc-block": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-block": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/btc-block": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

48. api.chainmarket-api.workers.dev/api/crypto/btc-blocks-rangeGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 14:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 14:30 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-blocks-range": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/btc-blocks-range": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "2000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-blocks-range": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "2000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/btc-blocks-range": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "2000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

49. api.chainmarket-api.workers.dev/api/crypto/btc-chain-tipsGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 18:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 18:30 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-chain-tips": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "5000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/btc-chain-tips": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "5000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-chain-tips": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "5000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/btc-chain-tips": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "5000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

50. api.chainmarket-api.workers.dev/api/crypto/btc-coin-days-destroyedGET

    Latest attempt

    not tried on Base yet

    Result

    not tried on Base yet

    Whose side

    not tried on Base yet

    Decision API now: ask for this listing · the full answer
    Latest L0 check (the 402 to an unpaid request): pass at 2026-11-11 18:30 UTC. Probes run oldest first, so there is no booked time. The next one usually comes by 2026-11-16 18:30 UTC (within 120 hours of the last).
    No Base purchase is on this listing.

    After a fixEmail me when this result changesDispute this recordA dispute does not start a purchase. The signed dispute route runs one fresh L0 check, an unpaid request.

    Fix code for Express, Next.js, Hono and FastAPI

    Paste one snippet for the stack you run. vet402 fills payTo, the atomic amount, the CAIP-2 network, and the path from this listing. A value the listing does not have stays <...>.

    Express

    import { paymentMiddleware, x402ResourceServer } from "@x402/express"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-coin-days-destroyed": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "3000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    Next.js (app router)

    import { withX402, x402ResourceServer } from "@x402/next"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    import { NextRequest, NextResponse } from "next/server"
    
    const server = new x402ResourceServer(new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })).register("<...>", new ExactEvmScheme())
    
    const handler = async (request: NextRequest) => {
      return NextResponse.json({ ok: true })
    }
    
    export const GET = withX402(
      handler,
      {
        "/api/crypto/btc-coin-days-destroyed": {
          accepts: {
            scheme: "exact",
            payTo: "<...>",
            price: { amount: "3000", asset: "<...>" },
            network: "<...>",
          },
        },
      },
      server,
    )

    Hono

    import { paymentMiddleware, x402ResourceServer } from "@x402/hono"
    import { ExactEvmScheme } from "@x402/evm/exact/server"
    import { HTTPFacilitatorClient } from "@x402/core/server"
    
    const facilitatorClient = new HTTPFacilitatorClient({ url: "https://x402.org/facilitator" })
    const server = new x402ResourceServer(facilitatorClient).register("<...>", new ExactEvmScheme())
    
    app.use(
      paymentMiddleware(
        {
          "GET /api/crypto/btc-coin-days-destroyed": {
            accepts: {
              scheme: "exact",
              payTo: "<...>",
              price: { amount: "3000", asset: "<...>" },
              network: "<...>",
            },
          },
        },
        server,
      ),
    )

    FastAPI

    from fastapi import FastAPI
    from x402 import x402ResourceServer
    from x402.http import HTTPFacilitatorClient
    from x402.http.middleware.fastapi import payment_middleware
    from x402.mechanisms.evm.exact import ExactEvmServerScheme
    
    app = FastAPI()
    facilitator = HTTPFacilitatorClient()
    server = x402ResourceServer(facilitator)
    server.register("<...>", ExactEvmServerScheme())
    
    routes = {
        "GET /api/crypto/btc-coin-days-destroyed": {
            "accepts": {
                "scheme": "exact",
                "payTo": "<...>",
                "price": {"amount": "3000", "asset": "<...>"},
                "network": "<...>",
            },
        },
    }
    
    @app.middleware("http")
    async def x402_middleware(request, call_next):
        return await payment_middleware(routes, server)(request, call_next)

2.How to read this

Each listing shows its latest Base attempt and up to four earlier Base attempts. Result and Whose side follow that Base attempt. A purchase on another chain is listed under Other chains, with the chain name, time, status, HTTP status, and a transaction link when one was recorded. The record page shows that purchase in the Payment chain column. A row where vet402 signed a payment and sent the paid request is an L1 result: “Recorded (L1 paid purchase)” when the payment settled on-chain, and “signed, not settled on-chain” when it did not. A row where vet402 did not sign is marked “not bought” and is not an L1 result. The listing's record page also shows the L0 state (“Published state”), which checks that an unpaid request gets a valid 402, so a listing can pass L0 and still fail here. Whose side puts a failure on the seller's side when the row shows vet402 was not at fault: it signed on the listing's terms, its wallet held the price, it sent the declared input, and the seller answered explicitly or had its declared time. Even then, one such failure is “not sorted: one failure so far”: a failure goes on the seller's side only when the same listing has one on two different days (UTC), and those rows are marked “attribution under review” while that review runs. The review has no set date. A row that cannot show all of that is “not sorted”, and so is a held row (held_reason in the export), a failure where no payment was taken (“no charge”), and a payment that settled before the seller refused an input vet402 had not sent. “Signed payment” and “Answer to the paid request” show what the row recorded, and nothing else: the answer's body and header values are not published. The maxTimeoutSeconds on a row is the listing's value today; a declared price or address on a not-bought row is the value recorded at the time of the attempt. The transaction link opens the settlement on Basescan when the purchase is on Base. “Decision API now” is what the decision API (GET /api/v1/resources/{id}/decision?role=payer, no key) answers for the listing when you open this page; your browser asks it for the first 2 listings, and for the others when you ask. It reads the same sorting as this page: a failure counts against the seller only when this page puts it on the seller's side. A paid attempt that took payment and did not deliver is a WARN, and two or more of them on the seller's side since the last delivery are the only way a failed purchase makes it a BLOCK; a listing whose failures this page leaves not sorted gets at most a WARN from them. An L0 check that is unverified (not probed yet, or not measurable) is a WARN, not a BLOCK. The codes that decided the answer come first, each with the meaning from the reason-code table (reason codes). “After a fix” gives the earliest date vet402's regular sweep can buy the listing again, where the rules let it be worked out, and the links to be told of a change or to dispute a row. Listings removed from the Bazaar, and listings whose catalog network is not Base, are not on this page. The fix-first page groups the same results across sellers (methodology).

3.Think a row is wrong?

Use “Dispute this purchase” on the row: it opens Dispute this record on the listing's record page with the purchase time filled in. The time filled in is the latest Base attempt when that listing has a Base purchase. Say what you saw instead. The row is not deleted on dispute; a correction is published with the same weight.