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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-09-27 · today

api.xynaptic.io/v1/station-departures

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://api.xynaptic.io/v1/station-departures
Sourcecdp_bazaar
Declared methodGET
Networkeip155:8453
Receiving address0x4ff893df9ab8603d5460fbbaee0d9b8c0fa4d5e9
Declared price (base units)5000
Catalog statusactive
First seen / last seen2026-09-24 01:02 UTC / 2026-09-27 01:02 UTC
Catalog-reported calls / payers (30d)14 / 1

2.Probe history

2026-09-242026-09-27
Figure 1. Probe timeline, last 5 probes for this endpoint (UTC). Filled = pass, crossed = fail, dashed = unverified. Same-day probes overlap.
L0 probe history, newest first
Probed atMethodVerdictHTTPLatencyReason
2026-09-27 04:40 UTCGETpass402178 ms—
2026-09-26 13:40 UTCGETpass402233 ms—
2026-09-25 16:40 UTCGETpass402450 ms—
2026-09-24 22:40 UTCGETpass402449 ms—
2026-09-24 10:30 UTCGETpass40262 ms—

3.L1 — real purchases

1 of 1 paid attempts settled with a receipt, and 0 of those also returned a 2xx response (delivered). Each settled row carries its on-chain transaction hash — the receipt is the evidence. 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.

A row marked tx from our index came back with no settlement receipt from the seller. Our own index of on-chain settlements found the transfer afterwards — our payer, this endpoint's payee, the exact amount, inside the time window — and the row goes through the same on-chain re-read as any other before it reads settled. The seller did not name that transaction; we did (methodology).

1 of those paid attempts are held as inconclusive rather than counted against this seller (1 settled and answered 4xx, 0 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).

1/1
Figure 2. Settle-through: one cell per paid attempt. Filled = settled with an on-chain receipt, crossed = paid but no receipt.
L1 purchase history, newest first
Attempted atResultHTTPReceipt (tx)Latency
09-24 12:01settled (nonce-bound)tx from our index4000x00d13b65…2151950 ms
5000 units (≈ $0.005 USDC) · L2 not_checked

Embed this record

Run this endpoint? Show the settle-through record vet402 measured — the badge reads 1/1 settled · 0 delivered · 1 inconclusive 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: 1 of 1 paid attempts settled with an on-chain receipt, and 0 of those also returned a 2xx response. settled is the confirmed transfer; delivered is the response arriving. 1 paid attempt is held as inconclusive rather than counted against the seller: a paid request that answered 4xx, settled or not, can be our own request being malformed, because vet402 buys with no API key and sends a request body only when the seller declares one; and a 402 or 5xx from 2026-09-13 to 2026-09-15 came while vet402's own payer wallet was out of USDC. A measurement of what happened when vet402 paid this endpoint, not a recommendation. (api.xynaptic.io · measured 2026-09-24)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/57f32653-8522-4f1a-b9fb-faa1095f38f6.svg)](https://vet402.com/observatory/e/57f32653-8522-4f1a-b9fb-faa1095f38f6)

Get one email when this record's verdict changes. No digest, no marketing — one message per change, and only for this endpoint.

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.