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x402 client conformance

Prove your client can actually pay.

ResolveBots Client Payment Probe verifies one narrow fact: a client completed a real x402 payment to the expected ResolveBots seller address. It supports standard Base exact settlement and Circle Gateway settlement, then returns detected payment facts and a signed ResolveBots receipt for downstream verification.

Use the APIAll services
$0.10signed receipt included
2facilitator modes
USDCBase exact + Gateway

What it proves

Payment completed

The probe settles a real x402 payment and returns pass/fail fields for paid, amount, recipient, and network evidence observed by ResolveBots.

What it returns

Signed receipt

The response includes a signed ResolveBots probe receipt, detected payment fields, transaction reference, and a free verification URL.

Best paired with

Endpoint evidence

Pair the client probe with Endpoint Proof Check or a Trust Index review when you also want seller-side metadata, response-shape, and delivery evidence.

Agent call

Test against two facilitator paths.

This is deliberately narrow and cheap: one fact, proven, for a dime. It gives buyer agents and builders a simple way to prove their client can complete a real x402 payment to a known seller. Base exact is the default for broad client compatibility; Gateway is available for clients testing Circle Gateway batching.

POST https://resolvebots.com/api/x402-client-probe/basic?facilitator=base-exact Price: 0.10 USDC Payment: Base exact via CDP facilitator Alternate rail: POST https://resolvebots.com/api/x402-client-probe/basic?facilitator=gateway Payment: Circle Gateway batched x402 List rails: GET https://resolvebots.com/api/x402-client-probe/facilitators Free receipt check: GET https://resolvebots.com/api/x402-client-probe/verify?receipt=<receipt_token>