agents.x402stock.xyz/api/v1/exchange-rates
1.Catalog declaration
| Resource URL | https://agents.x402stock.xyz/api/v1/exchange-rates |
| Source | cdp_bazaar |
| Declared method | GET |
| Network | eip155:8453 |
| Receiving address | 0xfdb4b511f6ae1f270776e500b3360217d5e7ed03 |
| Declared price (base units) | 20000 |
| Catalog status | active |
| First seen / last seen | 2026-08-14 08:52 UTC / 2026-10-01 01:03 UTC |
| Catalog-reported calls / payers (30d) | 5 / 3 |
2.Probe history
| Probed at | Method | Verdict | HTTP | Latency | Reason |
|---|---|---|---|---|---|
| 2026-10-01 16:40 UTC | GET | pass | 402 | 1272 ms | — |
| 2026-09-30 16:40 UTC | GET | pass | 402 | 413 ms | — |
| 2026-09-29 22:40 UTC | GET | pass | 402 | 444 ms | — |
| 2026-09-29 04:40 UTC | GET | pass | 402 | 578 ms | — |
| 2026-09-28 13:40 UTC | GET | pass | 402 | 595 ms | — |
| 2026-09-27 16:40 UTC | GET | pass | 402 | 360 ms | — |
| 2026-09-27 04:40 UTC | GET | pass | 402 | 664 ms | — |
| 2026-09-26 13:40 UTC | GET | pass | 402 | 892 ms | — |
| 2026-09-25 16:40 UTC | GET | pass | 402 | 644 ms | — |
| 2026-09-24 22:40 UTC | GET | pass | 402 | 423 ms | — |
| 2026-09-24 04:40 UTC | GET | pass | 402 | 475 ms | — |
| 2026-09-23 13:40 UTC | GET | pass | 402 | 421 ms | — |
| 2026-09-22 16:40 UTC | GET | pass | 402 | 408 ms | — |
| 2026-09-21 22:40 UTC | GET | pass | 402 | 473 ms | — |
| 2026-09-21 04:40 UTC | GET | pass | 402 | 449 ms | — |
| 2026-09-20 13:40 UTC | GET | pass | 402 | 454 ms | — |
| 2026-09-19 16:40 UTC | GET | pass | 402 | 627 ms | — |
| 2026-09-18 22:40 UTC | GET | pass | 402 | 535 ms | — |
| 2026-09-18 13:40 UTC | GET | pass | 402 | 531 ms | — |
| 2026-09-17 16:40 UTC | GET | pass | 402 | 370 ms | — |
| 2026-09-16 22:40 UTC | GET | pass | 402 | 1064 ms | — |
| 2026-09-15 22:40 UTC | GET | pass | 402 | 777 ms | — |
| 2026-09-15 13:40 UTC | GET | pass | 402 | 351 ms | — |
| 2026-09-14 16:40 UTC | GET | pass | 402 | 371 ms | — |
| 2026-09-14 04:40 UTC | GET | pass | 402 | 428 ms | — |
| 2026-09-13 13:40 UTC | GET | pass | 402 | 1217 ms | — |
| 2026-09-12 22:40 UTC | GET | pass | 402 | 462 ms | — |
| 2026-09-12 04:40 UTC | GET | pass | 402 | 861 ms | — |
| 2026-09-11 16:40 UTC | GET | pass | 402 | 851 ms | — |
| 2026-09-11 04:40 UTC | GET | pass | 402 | 648 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 also matched the one-time signature nonce we generated for that purchase, and amount + payee when it matched amount, payee, asset and chain with no nonce on record — the binding shipped on 2026-09-04, so earlier rows carry the weaker evidence and keep their label rather than being demoted (methodology). settled is the transfer we 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 (nonce-bound)- vet402 confirmed the USDC transfer on-chain, and the on-chain re-read also matched the one-time nonce vet402 signed for that purchase.
settled (amount + payee)- vet402 confirmed the USDC transfer on-chain; the on-chain re-read matched amount, payee, asset and chain; no nonce was on record (rows before 2026-09-04).
L2 mismatch- the response lacked fields the listing's output schema declares.
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).
| Attempted at | Result | HTTP | On-chain tx | Latency |
|---|---|---|---|---|
| 09-12 12:092026-09-12 12:09 UTC | settled (nonce-bound) | 200 | 0xcc7e3586…fd2f | 2976 ms |
| 20000 units (≈ $0.02 USDC) · L2 mismatchWhose side: no failure (delivered) | ||||
| 09-02 00:042026-09-02 00:04 UTC | settled (amount + payee) | 200 | 0x9289c6fd…f846 | 2492 ms |
| 20000 units (≈ $0.02 USDC) · L2 mismatchWhose side: no failure (delivered) | ||||
| 08-26 12:352026-08-26 12:35 UTC | settled (amount + payee) | 200 | 0x323c14ae…407c | 2423 ms |
| 20000 units (≈ $0.02 USDC) · L2 mismatchWhose 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.
[](https://vet402.com/observatory/e/895e0d8f-59cb-430b-acb6-f7fa36a26284)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.