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Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-09-30 · today

blockrun.ai/api/v1/phone/numbers/list

1.Catalog declaration

Catalog declaration for this endpoint
Resource URLhttps://blockrun.ai/api/v1/phone/numbers/list
Sourcecdp_bazaar
Declared methodPOST
Networkeip155:8453
Receiving address0xe9030014f5dae217d0a152f02a043567b16c1abf
Declared price (base units)2000
Catalog statusactive
First seen / last seen2026-08-14 08:39 UTC / 2026-09-30 01:03 UTC
Catalog-reported calls / payers (30d)8 / 7

2.Probe history

2026-09-102026-09-30
Figure 1. Probe timeline, last 30 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
2026-09-30 04:40 UTCPOSTpass402399 ms—
2026-09-29 13:40 UTCPOSTpass402314 ms—
2026-09-28 16:40 UTCPOSTpass402179 ms—
2026-09-27 22:40 UTCPOSTpass4022221 ms—
2026-09-27 04:40 UTCPOSTpass402246 ms—
2026-09-26 13:40 UTCPOSTpass4022492 ms—
2026-09-25 16:40 UTCPOSTpass402171 ms—
2026-09-24 22:40 UTCPOSTpass402647 ms—
2026-09-24 04:40 UTCPOSTpass40280 ms—
2026-09-23 13:40 UTCPOSTpass402288 ms—
2026-09-22 16:40 UTCPOSTpass402221 ms—
2026-09-21 22:40 UTCPOSTpass402198 ms—
2026-09-21 13:40 UTCPOSTpass402247 ms—
2026-09-20 16:40 UTCPOSTpass402123 ms—
2026-09-19 22:40 UTCPOSTpass402142 ms—
2026-09-19 04:40 UTCPOSTpass40280 ms—
2026-09-18 13:40 UTCPOSTpass402612 ms—
2026-09-17 16:40 UTCPOSTpass402479 ms—
2026-09-17 04:40 UTCPOSTpass40253 ms—
2026-09-16 13:40 UTCPOSTpass40272 ms—
2026-09-15 16:40 UTCPOSTpass402305 ms—
2026-09-14 22:40 UTCPOSTpass402133 ms—
2026-09-14 04:40 UTCPOSTpass4022077 ms—
2026-09-13 16:40 UTCPOSTpass402216 ms—
2026-09-13 04:40 UTCPOSTpass402167 ms—
2026-09-12 13:40 UTCPOSTpass40270 ms—
2026-09-11 22:40 UTCPOSTpass402250 ms—
2026-09-11 04:40 UTCPOSTpass4022071 ms—
2026-09-10 17:40 UTCPOSTpass40279 ms—
2026-09-10 05:40 UTCPOSTpass402237 ms—

3.L1 — real purchases

3 of 4 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.

1 of those paid attempts are held as inconclusive rather than counted against this seller (0 settled and answered 4xx, 0 answered 4xx with no settlement receipt, 1 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 of the paid attempts failed on vet402's side (for example our wallet was out of USDC, or we did not send the input the listing declares). The rows stay in the table; the embeddable badge below leaves them out of its count and names them as “vet402 side”.

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.
settle_failed
vet402 signed a payment and got no settlement receipt back.
payer_unfunded
held_reason in the export: a 402 or 5xx while vet402's Base wallet was out of USDC (2026-09-13 to 2026-09-15).
L2 match
the response had the fields the listing's output schema declares.
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).
3/4
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 txLatency
09-26 00:01settled (nonce-bound)2000xf5838eb9…aa9b1386 ms
2000 units (≈ $0.002 USDC) · L2 matchWhose side: no failure (delivered)
09-19 18:02settled (nonce-bound)2000x7f3f6021…41b71482 ms
2000 units (≈ $0.002 USDC) · L2 matchWhose side: no failure (delivered)
09-13 06:00settle_failed402—412 ms
2000 units (≈ $0.002 USDC) · L2 not_checkedWhose side: vet402's side
09-04 12:08settled (nonce-bound)2000xeb75ada5…dfa21772 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 · vet402 side 1 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. 1 further paid attempt failed on vet402's side (for example its wallet was out of USDC, or it did not send the input the listing declares) and is left out of these counts. A measurement of what happened when vet402 paid this endpoint, not a recommendation. (blockrun.ai · measured 2026-09-26)

[![vet402 receipt](https://vet402.com/api/badge/endpoint/2304dcab-7a06-46c0-b6a2-372995001c20.svg)](https://vet402.com/observatory/e/2304dcab-7a06-46c0-b6a2-372995001c20)

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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blockrun.ai/api/v1/phone/numbers/list — x402 purchase and probe record | vet402