api.usenami.io/v1/perp/volume-24h
1.Catalog declaration
| Resource URL | https://api.usenami.io/v1/perp/volume-24h |
| Source | cdp_bazaar |
| Declared method | GET |
| Network | eip155:8453 |
| Receiving address | 0x1538726707212f4db3eb67cec0910422a310475c |
| Declared price (base units) | 1000 |
| Catalog status | active |
| First seen / last seen | 2026-08-14 08:52 UTC / 2026-10-01 01:03 UTC |
| Catalog-reported calls / payers (30d) | 2 / 2 |
2.Probe history
| Probed at | Method | Verdict | HTTP | Latency | Reason |
|---|---|---|---|---|---|
| 2026-09-30 13:40 UTC | GET | pass | 402 | 790 ms | — |
| 2026-09-29 16:40 UTC | GET | pass | 402 | 850 ms | — |
| 2026-09-28 22:40 UTC | GET | pass | 402 | 725 ms | — |
| 2026-09-28 04:40 UTC | GET | pass | 402 | 758 ms | — |
| 2026-09-27 16:40 UTC | GET | pass | 402 | 763 ms | — |
| 2026-09-26 22:40 UTC | GET | pass | 402 | 777 ms | — |
| 2026-09-26 04:40 UTC | GET | pass | 402 | 726 ms | — |
| 2026-09-25 13:40 UTC | GET | pass | 402 | 817 ms | — |
| 2026-09-24 16:40 UTC | GET | pass | 402 | 1056 ms | — |
| 2026-09-23 22:40 UTC | GET | pass | 402 | 1115 ms | — |
| 2026-09-23 04:40 UTC | GET | pass | 402 | 383 ms | — |
| 2026-09-22 13:40 UTC | GET | pass | 402 | 2458 ms | — |
| 2026-09-21 16:40 UTC | GET | pass | 402 | 897 ms | — |
| 2026-09-20 22:40 UTC | GET | pass | 402 | 519 ms | — |
| 2026-09-20 04:40 UTC | GET | pass | 402 | 972 ms | — |
| 2026-09-19 13:40 UTC | GET | pass | 402 | 592 ms | — |
| 2026-09-18 16:40 UTC | GET | pass | 402 | 687 ms | — |
| 2026-09-17 22:40 UTC | GET | pass | 402 | 1115 ms | — |
| 2026-09-17 13:40 UTC | GET | pass | 402 | 1577 ms | — |
| 2026-09-16 16:40 UTC | GET | pass | 402 | 900 ms | — |
| 2026-09-15 16:40 UTC | GET | pass | 402 | 862 ms | — |
| 2026-09-15 04:40 UTC | GET | pass | 402 | 870 ms | — |
| 2026-09-14 13:40 UTC | GET | pass | 402 | 825 ms | — |
| 2026-09-13 22:40 UTC | GET | pass | 402 | 946 ms | — |
| 2026-09-13 04:40 UTC | GET | pass | 402 | 792 ms | — |
| 2026-09-12 16:40 UTC | GET | pass | 402 | 888 ms | — |
| 2026-09-11 22:40 UTC | GET | pass | 402 | 729 ms | — |
| 2026-09-11 13:40 UTC | GET | pass | 402 | 2706 ms | — |
| 2026-09-10 17:40 UTC | GET | pass | 402 | 724 ms | — |
| 2026-09-10 05:40 UTC | GET | pass | 402 | 1172 ms | — |
3.L1 — real purchases
0 of 2 paid attempts settled on-chain, and 0 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.
2 of those paid attempts are held as inconclusive rather than counted against this seller (0 settled and answered 4xx, 2 answered 4xx with no settlement receipt, 0 answered 402 or 5xx while our own payer wallet was out of USDC, 2026-09-13 00:00 to 2026-09-15 23:49 UTC). A 4xx says the request was not one the server would accept, and we cannot rule out that the request was ours to get wrong: vet402 buys with no API key of the seller's, and sends a POST body only when the seller declares one. This is the same principle the methodology already applied to path_template URLs, applied to the body and the authentication header as well. The rows are not deleted and not hidden — they are below, with their status and HTTP code, and they are out of the denominator for delivered (corrections).
Terms in this table
settle_failed- vet402 signed a payment and got no settlement receipt back.
unsettled_4xx- held_reason in the export: the paid request got a 4xx with no settlement receipt and no transaction.
L2 not_checked- not checked: the paid request did not answer 200, so there was no response to check against the listing's output schema.
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 |
|---|---|---|---|---|
| 09-16 00:012026-09-16 00:01 UTC | settle_failed | 422 | — | 1525 ms |
| 1000 units (≈ $0.001 USDC) · L2 not_checkedWhose side: not sorted: no charge | ||||
| 09-09 07:002026-09-09 07:00 UTC | settle_failed | 422 | — | 1518 ms |
| 1000 units (≈ $0.001 USDC) · L2 not_checkedWhose side: not sorted: no charge | ||||
4.Catalog listing events
| Detected on | Event | Before | After |
|---|---|---|---|
| 2026-08-31 | relisted | {"status":"delisted"} | {"status":"active"} |
| 2026-08-30 | delisted | {"status":"active"} | {"status":"delisted"} |
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.