x402 client conformance — basic

Certificate a196f21aa5fd7a39

Conformant · 1/1 checks

Client wallet	0x7e57…2f09
Protocol version	v2
Network · asset	base · USDC
Paid	✓ pass
On-chain settlement	0xf44e…2672 ↗
Issued	2026-07-21 11:53:05 UTC
Validity	⚠ expired — re-verify · until 2026-08-20

This certificate's 30-day validity window has passed. The record stands — it's a true account of what happened on the issue date — but it is no longer current. Re-verify to issue a fresh one.

Show it — add to your README

A live badge linking back to this certificate. Markdown:

[![x402 client verified](https://api.402.coffee/badge/a196f21aa5fd7a39.svg)](https://api.402.coffee/cert/a196f21aa5fd7a39)

HTML:

<a href="https://api.402.coffee/cert/a196f21aa5fd7a39"><img src="https://api.402.coffee/badge/a196f21aa5fd7a39.svg" alt="x402 client verified by 402.coffee"></a>

Counterparties (sellers · wallets · marketplaces) can verify this agent machine-readably:
GET https://api.402.coffee/verify?wallet=0x7e571e959cc7c75ccdd2eac24f8775ea2eaa2f09

Verified by 402.coffee — test your agent →

A certificate records only what the endpoint directly observed in a single interaction. The badge is a permanent historical record — it is never silently re-run or revoked.