Independent MeasurementEndpoint record (L0 · L1)Published state: passLast probed: 2026-09-04 · today

agent-proxy.alchemy.com/v1/x402/4013ed2b4f50e768/abc-test-123

1.Catalog declaration

Catalog declaration for this endpoint
Resource URL	https://agent-proxy.alchemy.com/v1/x402/4013ed2b4f50e768/abc-test-123/
Source	cdp_bazaar
Declared method	POST
Network	eip155:8453
Receiving address	0x658dc531a7fe637f7ba31c3ddd4c9bf8a27c81e5
Declared price (base units)	20000
Catalog status	active
First seen / last seen	2026-08-14 08:52 UTC / 2026-09-05 01:03 UTC
Catalog-reported calls / payers (30d)	6 / 3

2.Probe history

2026-08-282026-09-04

Figure 1. Probe timeline, last 8 probes for this endpoint (UTC). Filled = pass, crossed = fail, dashed = unverified. Same-day probes overlap.

L0 probe history, newest first
Probed at	Method	Verdict	HTTP	Latency	Reason
2026-09-04 17:40 UTC	POST	pass	402	125 ms	—
2026-09-04 05:40 UTC	POST	pass	402	344 ms	—
2026-09-03 17:40 UTC	POST	pass	402	443 ms	—
2026-09-03 05:40 UTC	POST	pass	402	446 ms	—
2026-09-02 17:40 UTC	POST	pass	402	330 ms	—
2026-09-02 05:40 UTC	POST	pass	402	142 ms	—
2026-09-01 23:40 UTC	POST	pass	402	381 ms	—
2026-08-28 11:00 UTC	POST	pass	402	378 ms	—

3.L1 — real purchases

1 of 1 paid attempts settled with a receipt, and 1 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 4xx or 5xx counts as settled and not as delivered — definitions.

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 at	Result	HTTP	Receipt (tx)	Latency
08-29 12:082026-08-29 12:08 UTC	settled (amount + payee)	200	0x64d63ea1…5cb6	1301 ms
20000 units (≈ $0.02 USDC) · L2 no_declaration

Embed this record

Run this endpoint? Show the settle-through record vet402 measured — the badge reads 1/1 settled · 1 delivered and updates as the record grows. It states a measurement, not a rating.

[![vet402 receipt](https://vet402.com/api/badge/endpoint/d86e59cc-1a6f-4da1-9343-546f524a8abd.svg)](https://vet402.com/observatory/e/d86e59cc-1a6f-4da1-9343-546f524a8abd)

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.