State of x402 listings — measured conformance

Captured 2026-10-03 from 800 listings across 55 hosts in the x402 Bazaar directory (1696 accepts entries, 79 distinct pay-to addresses).

What this is. Unpaid, read-only analysis of public directory metadata. No endpoint was probed for this report and no party is named. Figures are point-in-time (captured 2026-10-03) and describe what listings DECLARE, not what a live 402 returns. Corrections are welcome and are applied to this page with a dated note.

Our own listing status, stated plainly. code402 is not currently listed in the directory this measurement draws from — a search of the full snapshot for our domain and pay-to address returns nothing. We publish the market we are trying to join, including the fact that we are outside it. (On 2026-10-04 our own OpenAPI declared no payment mode on 76 of 77 routes, which is very likely why an OpenAPI-first indexer could not list us; that is fixed and re-audited.)

What listings declare

Property	Share	Why it matters
Declares x402 version 2	100%	v1-only listings are invisible to current clients
Accept entry uses a CAIP-2 network	79.7%	a bare name like `base` is not matchable against a client's chain
Accept entry carries an asset address	79.7%	a symbol cannot be approved or transferred
Accept entry carries a pay-to address	80.2%	payment instructions need a recipient
Amount is an integer in atomic units	99.5%	a decimal or float amount cannot be signed
Accept entry declares the EIP-712 domain	81.1%	without `extra.name` and `extra.version` the 402 terms are not signable by a standard client
Listing carries the directory input schema	100%	what a crawler publishes, not what your endpoint sends

Read together: about one in five accept entries is missing at least one field a strict client needs before it will sign. The failure is silent on the seller side — the listing looks alive, and the client simply never pays.

Activity across the same listings (30 days)

Total calls	530,984	as recorded by the directory
Unique payers	110,232
Median calls per listing	156	half of all listings do less than this
90th percentile	924	the volume is concentrated
Schemes in use	batch-settlement, exact, upto	87.3% are `exact`; the rest are batch-settlement or upto
Accepts paying in USDC on Base	1,104

Check your own listing

Everything above is checkable against your own endpoint in one request. Our conformance probe is free to run yourself: it reads your discovery document, requests your 402 challenge, and reports each check with the raw payload. If you want a dated, named report — the same checks, with your payloads, signed by us and citable by your buyers — see pilot terms or write to support@code402.dev. We never publish a named report without the subject's request.

Machine-readable form of this page: /conformance.json. Receipt verification is free forever: /v1/receipt/verify.