Independent MeasurementSeller: purchase results on BaseRead from the database 2026-09-29 04:07 UTC · reused for up to 5 min

vet402Sellers · What to fix firstMethodology

402utils.com: x402 purchase results on Base, as of 2026-09-27

17 Base listings. By the latest attempt at each: 1 delivered · 0 failed on the seller's side · 5 on vet402's side · 11 not tried yet. Latest attempt: 2026-09-27 18:01 UTC.

1.Your listings

402utils.com/v1/hashPOST
Latest attempt
2026-09-27 18:01 UTC
Result
delivered
Whose side
no failure (delivered)
What we saw: Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: vet402 signed: exact · 0.001 USDC · payTo 0xc55a…c291. Input sent: body declared, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.001 USDC · payTo 0xc55a…c291 · nonce 0x83a1…798e · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.The latest purchase delivered. An earlier attempt listed below did not.Recorded (L1 paid purchase): settled (vet402 confirmed the USDC transfer on-chain) · HTTP 200 · tx 0x4eaa3844…ee0aIn export.csv?days=3: the row with attempted_at 2026-09-27T18:01:22Z and resource_key 402utils.com/v1/hash.Dispute this purchase Email me when this result changes
Earlier attempts
1. 2026-09-21 12:09 UTC · delivered · no failure (delivered)settled (vet402 confirmed the USDC transfer on-chain) · HTTP 200 · tx 0x9cca4bfe…9092
  What vet402 recorded
  Paid; vet402 confirmed the transfer on-chain and the paid request answered HTTP 200.The 402 terms vet402 paid: vet402 signed: exact · 0.001 USDC · payTo 0xc55a…c291. Input sent: body declared, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.001 USDC · payTo 0xc55a…c291 · nonce 0xa8c4…78e9 · validBefore not recorded.Answer to the paid request: HTTP 200 · Content-Type application/json · PAYMENT-RESPONSE: success true, names a transaction.
  Dispute this purchase
2. 2026-09-11 12:09 UTC · vet402 did not send the declared request body · vet402's sidesettle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)
  What vet402 recorded
  Before 2026-09-16 23:25 UTC, vet402 sent an empty JSON body on paid POST requests, even when the listing declares a body. The seller refused it with 400, 415 or 422, and the payment did not settle (a payment that settled is under "Charged, then refused an input vet402 had not sent").The 402 terms vet402 paid: vet402 signed: exact · 0.001 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.001 USDC · payTo 0xc55a…c291 · nonce 0xe7e9…f8e4 · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared request body.
  Dispute this purchase
3. 2026-09-04 01:01 UTC · vet402 did not send the declared request body · vet402's sidesettle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)
  What vet402 recorded
  Before 2026-09-16 23:25 UTC, vet402 sent an empty JSON body on paid POST requests, even when the listing declares a body. The seller refused it with 400, 415 or 422, and the payment did not settle (a payment that settled is under "Charged, then refused an input vet402 had not sent").The 402 terms vet402 paid: vet402 signed: exact · 0.001 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.001 USDC · payTo 0xc55a…c291 · nonce not recorded · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared request body.
  Dispute this purchase
402utils.com/v1/domain-checkGET
Latest attempt
2026-09-24 06:01 UTC
Result
vet402 did not send the declared query
Whose side
vet402's side
What we saw: Before 2026-09-27 23:27 UTC, vet402 did not add the query parameters the seller's 402 declares to paid requests on Base, and this listing declares them (example values, or required names). The seller refused the request with 400 or 422.Last result about the seller: none among the attempts shown. The latest attempt failed on vet402's side; vet402 has not bought this listing again since.The 402 terms vet402 paid: vet402 signed: exact · 0.002 USDC · payTo 0xc55a…c291. Input sent: body none, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xc55a…c291 · nonce 0x2571…57e7 · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.What to fix: Nothing for the seller to fix.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared query.This failure was on vet402's side, not the seller's.Recorded (L1 paid purchase): settle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)In export.csv?days=6: the row with attempted_at 2026-09-24T06:01:48Z and resource_key 402utils.com/v1/domain-check.Dispute this purchase Email me when this result changes
Earlier attempts
1. 2026-09-18 00:01 UTC · vet402 did not send the declared query · vet402's sidesettle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)
  What vet402 recorded
  Before 2026-09-27 23:27 UTC, vet402 did not add the query parameters the seller's 402 declares to paid requests on Base, and this listing declares them (example values, or required names). The seller refused the request with 400 or 422.The 402 terms vet402 paid: vet402 signed: exact · 0.002 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xc55a…c291 · nonce 0xb67b…5d8b · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared query.
  Dispute this purchase
402utils.com/v1/timezone-convertGET
Latest attempt
2026-09-19 12:08 UTC
Result
vet402 did not send the declared query
Whose side
vet402's side
What we saw: Before 2026-09-27 23:27 UTC, vet402 did not add the query parameters the seller's 402 declares to paid requests on Base, and this listing declares them (example values, or required names). The seller refused the request with 400 or 422.Last result about the seller: none among the attempts shown. The latest attempt failed on vet402's side; vet402 has not bought this listing again since.The 402 terms vet402 paid: vet402 signed: exact · 0.001 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.001 USDC · payTo 0xc55a…c291 · nonce 0x92a9…b1bc · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.What to fix: Nothing for the seller to fix.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared query.This failure was on vet402's side, not the seller's.Recorded (L1 paid purchase): settle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)In export.csv?days=11: the row with attempted_at 2026-09-19T12:08:26Z and resource_key 402utils.com/v1/timezone-convert.Dispute this purchase Email me when this result changes
402utils.com/v1/screenshotPOST
Latest attempt
2026-09-14 18:01 UTC
Result
vet402's wallet was out of USDC
Whose side
vet402's side
What we saw: Between 2026-09-13 00:00 and 2026-09-15 23:49 UTC, vet402's Base payer wallet had run out of USDC. The seller refused a payment that had nothing behind it (402 or 5xx).Last result about the seller: none among the attempts shown. The latest attempt failed on vet402's side; vet402 has not bought this listing again since.The 402 terms vet402 paid: vet402 signed: exact · 0.008 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.008 USDC · payTo 0xc55a…c291 · nonce 0x6435…e506 · validBefore not recorded.Answer to the paid request: HTTP 402 · Content-Type application/json · no PAYMENT-RESPONSE recorded.What to fix: Nothing for the seller to fix.This failure was on vet402's side, not the seller's.Recorded (L1 paid purchase): settle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 402 · no tx · held as payer_unfunded (a 402 or 5xx while vet402's Base wallet was out of USDC (2026-09-13 to 2026-09-15))In export.csv?days=16: the row with attempted_at 2026-09-14T18:01:12Z and resource_key 402utils.com/v1/screenshot.Dispute this purchase Email me when this result changes
Earlier attempts
1. 2026-09-02 12:09 UTC · vet402 did not send the declared request body · vet402's sidesettle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)
  What vet402 recorded
  Before 2026-09-16 23:25 UTC, vet402 sent an empty JSON body on paid POST requests, even when the listing declares a body. The seller refused it with 400, 415 or 422, and the payment did not settle (a payment that settled is under "Charged, then refused an input vet402 had not sent").The 402 terms vet402 paid: vet402 signed: exact · 0.008 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.008 USDC · payTo 0xc55a…c291 · nonce not recorded · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared request body.
  Dispute this purchase
402utils.com/v1/x402-quoteGET
Latest attempt
2026-09-13 12:08 UTC
Result
vet402's wallet was out of USDC
Whose side
vet402's side
What we saw: Between 2026-09-13 00:00 and 2026-09-15 23:49 UTC, vet402's Base payer wallet had run out of USDC. The seller refused a payment that had nothing behind it (402 or 5xx).Last result about the seller: none among the attempts shown. The latest attempt failed on vet402's side; vet402 has not bought this listing again since.The 402 terms vet402 paid: vet402 signed: exact · 0.002 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xc55a…c291 · nonce 0x1fba…eb7c · validBefore not recorded.Answer to the paid request: HTTP 402 · Content-Type application/json · no PAYMENT-RESPONSE recorded.What to fix: Nothing for the seller to fix.This failure was on vet402's side, not the seller's.Recorded (L1 paid purchase): settle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 402 · no tx · held as payer_unfunded (a 402 or 5xx while vet402's Base wallet was out of USDC (2026-09-13 to 2026-09-15))In export.csv?days=17: the row with attempted_at 2026-09-13T12:08:32Z and resource_key 402utils.com/v1/x402-quote.Dispute this purchase Email me when this result changes
Earlier attempts
1. 2026-09-02 12:08 UTC · vet402 did not send the declared query · vet402's sidesettle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)
  What vet402 recorded
  Before 2026-09-27 23:27 UTC, vet402 did not add the query parameters the seller's 402 declares to paid requests on Base, and this listing declares them (example values, or required names). The seller refused the request with 400 or 422.The 402 terms vet402 paid: vet402 signed: exact · 0.002 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xc55a…c291 · nonce not recorded · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared query.
  Dispute this purchase
402utils.com/v1/rss-to-jsonGET
Latest attempt
2026-09-12 12:08 UTC
Result
vet402 did not send the declared query
Whose side
vet402's side
What we saw: Before 2026-09-27 23:27 UTC, vet402 did not add the query parameters the seller's 402 declares to paid requests on Base, and this listing declares them (example values, or required names). The seller refused the request with 400 or 422.Last result about the seller: none among the attempts shown. The latest attempt failed on vet402's side; vet402 has not bought this listing again since.The 402 terms vet402 paid: vet402 signed: exact · 0.002 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xc55a…c291 · nonce 0xb153…3604 · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.What to fix: Nothing for the seller to fix.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared query.This failure was on vet402's side, not the seller's.Recorded (L1 paid purchase): settle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)In export.csv?days=18: the row with attempted_at 2026-09-12T12:08:49Z and resource_key 402utils.com/v1/rss-to-json.Dispute this purchase Email me when this result changes
Earlier attempts
1. 2026-09-03 12:09 UTC · vet402 did not send the declared query · vet402's sidesettle_failed (vet402 signed a payment and got no settlement receipt back) · HTTP 400 · no tx · held as unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction)
  What vet402 recorded
  Before 2026-09-27 23:27 UTC, vet402 did not add the query parameters the seller's 402 declares to paid requests on Base, and this listing declares them (example values, or required names). The seller refused the request with 400 or 422.The 402 terms vet402 paid: vet402 signed: exact · 0.002 USDC · payTo 0xc55a…c291. Input sent: body not recorded, query not recorded. The listing's maxTimeoutSeconds is 60; vet402 waits 20 seconds for the paid answer.Signed payment: scheme exact · 0.002 USDC · payTo 0xc55a…c291 · nonce not recorded · validBefore not recorded.Answer to the paid request: HTTP 400 · Content-Type application/json · no PAYMENT-RESPONSE recorded.In export.csv this row's held_reason is unsettled_4xx (the paid request got a 4xx with no settlement receipt and no transaction). This page names the cause the row shows: vet402 did not send the declared query.
  Dispute this purchase
402utils.com/v1/colorGET
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/cron-nextGET
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/diffPOST
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/echoPOST
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/email-checkGET
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/json-to-csvPOST
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/pdfPOST
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/rerankPOST
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/vat-ossGET
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/xml-to-jsonPOST
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes
402utils.com/v1/yamlPOST
Latest attempt
not tried yet
Result
—
Whose side
—
vet402 has not tried to buy this listing yet.Email me when this result changes

2.How to read this

Each listing shows its latest attempt on Base and up to four earlier ones. A row where vet402 signed a payment and sent the paid request is an L1 result (“Recorded (L1 paid purchase)”); 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 “under re-check” while we re-check them. 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. 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. Say what you saw instead. The row is not deleted on dispute; a correction is published with the same weight.