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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-10-20 · 1 day ago

agent402.tools/api/crypto-news

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://agent402.tools/api/crypto-news
Sourcecdp_bazaar
Declared methodPOST
Catalog networkeip155:8453
Receiving address0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
Declared price (base units)2000
Catalog statusactive
First seen / last seen2026-08-31 01:03 UTC / 2026-10-21 13:01 UTC
Catalog-reported calls / payers (30d)13 / 6

2.Probe history

2026-09-052026-10-20
Figure 1. Probe timeline, last 20 probes for this endpoint (UTC). Filled = pass, crossed = fail, dashed = unverified. Same-day probes overlap. Marks closer than one mark width are stepped down one lane.
L0 probe history, newest first
Probed atMethodVerdictHTTPLatencyReason
2026-10-20 16:40 UTCPOSTpass402224 ms—
2026-10-18 22:40 UTCPOSTpass402163 ms—
2026-10-17 16:40 UTCPOSTpass402260 ms—
2026-10-16 12:40 UTCPOSTpass40291 ms—
2026-10-14 21:40 UTCPOSTpass402101 ms—
2026-10-13 15:40 UTCPOSTpass402192 ms—
2026-10-12 12:40 UTCPOSTpass402189 ms—
2026-10-11 12:40 UTCPOSTpass402199 ms—
2026-10-10 12:40 UTCPOSTpass40289 ms—
2026-10-09 12:40 UTCPOSTpass4021128 ms—
2026-10-07 22:40 UTCPOSTpass402160 ms—
2026-10-07 04:40 UTCPOSTpass402572 ms—
2026-10-04 10:30 UTCPOSTpass402107 ms—
2026-09-27 10:31 UTCPOSTpass402108 ms—
2026-09-23 10:30 UTCPOSTpass402154 ms—
2026-09-19 11:24 UTCPOSTfail40283 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-17 11:24 UTCPOSTfail40284 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-13 11:24 UTCPOSTfail40292 msprice_mismatchAmount or asset differs from the catalog declaration (the values compared were not recorded before the 2026-09-29 change).
2026-09-09 11:24 UTCPOSTpass40286 ms—
2026-09-05 11:24 UTCPOSTpass402138 ms—

3.L1 — real purchases

3 of 3 paid attempts settled on-chain, and 3 of those also returned a 2xx response (delivered). Each settled row carries its on-chain transaction hash, and that transaction is the evidence. On this page a receipt means the seller's own settlement receipt (PAYMENT-RESPONSE); a settled row can have none (see “tx from our index”). A settled row reads as nonce-bound when the on-chain re-read matched the one-time value stored for that purchase, so the transaction is the one for this purchase. Stellar is not in this count. The Stellar re-read checks payer, payee, amount and asset. A row reads as amount + payee when the re-read matched payer, payee, amount and asset and did not bind a one-time value. That tier holds rows from before 2026-09-04 and Stellar rows. They keep the settled label rather than being demoted (methodology). settled is the transfer vet402 confirmed on-chain. delivered is the response arriving. A settled row whose paid request answered 5xx counts as settled and not as delivered. definitions.

Terms in this table

settled (amount + payee)
vet402 re-read the transfer on-chain in that chain's pinned settlement asset: the on-chain re-read matched payer, payee, amount and asset and did not bind a one-time value (rows before 2026-09-04, and Stellar).
settled (nonce-bound)
vet402 re-read the transfer on-chain in that chain's pinned settlement asset, and the on-chain re-read matched the one-time value stored for that purchase, so the transaction is the one for this purchase. Stellar is not in this count.
L2 match
the response parsed as JSON and had the keys the listing marks as required. With an example that marks no key as required, a JSON object or array is enough.
Whose side
the same words as the seller page: seller's side only after failures on two different days (UTC), marked “under re-check”; vet402's side; or not sorted (the rules).
3/3
Figure 2. Settle-through: one cell per paid attempt. Filled = settled on-chain, crossed = signed, and not settled on-chain.
L1 purchase history, newest first
Attempted atResultHTTPOn-chain txPayment chainLatency
10-21 06:01settled (amount + payee)20016ebf50595…99b8Stellar10350 ms
2000 units (≈ $0.002 USDC) · L2 matchWhose side: no failure (delivered)
10-15 05:00settled (nonce-bound)2000x068ee1d8…2f1aCelo15246 ms
2000 units (≈ $0.002 USDC) · L2 matchWhose side: no failure (delivered)
10-08 00:02settled (nonce-bound)2000x67fd8f95…7078Base2176 ms
2000 units (≈ $0.002 USDC) · L2 matchWhose side: no failure (delivered)

Embed this record

Run this endpoint? Show the settle-through record vet402 measured — the badge reads 3/3 settled · 3 delivered and updates as the record grows. It carries the host it is about and the date it was last measured, so a saved copy cannot pass itself off as current. It states a measurement, not a rating.

vet402: 3 of 3 paid attempts settled with an on-chain receipt, and 3 of those also returned a 2xx response. settled is the confirmed transfer; delivered is the response arriving. A measurement of what happened when vet402 paid this endpoint, not a recommendation. (agent402.tools · measured 2026-10-21)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/88c02ae3-25ba-46a5-afad-8e72d0c405a3.svg)](https://vet402.com/observatory/e/88c02ae3-25ba-46a5-afad-8e72d0c405a3)

Get one email when this record's verdict changes. No digest, no marketing — one message per change, and only for this endpoint. We first send one confirmation email; nothing else goes out until you confirm.

4.Catalog listing events

No listing changes observed.

unverified is not a failure; a fail is published only after two consecutive failing probes. Definitions: methodology.

5.Dispute this record

Think a measurement above is wrong? Say which probe or purchase and what you observed instead. One person reads it and replies. The record is never deleted on dispute: if it was wrong, the correction is published with the same weight; if it was right, it stands. Operators who control the receiving address can also sign a dispute via POST /api/v1/observatory/disputes (API reference), which re-measures through the normal publication gate.

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