No-login sandbox
Build and inspect an x402 request.
Generate a safe sample, edit it, copy request formats, and inspect lifecycle guidance. This does not fabricate a production signature.
SANDBOXSafe sample dataNo funds move from the generator
Request builder
Flow preview
- Construct the payment requirement.
- Sign the actual x402 V2 payload in the client.
- POST it to
/verify. - Use the returned access token for
/settle. - Query status or nonce recovery after interruptions.
Production note
A sample is not a valid payment. Production verification requires the isolated verifier and production settlement requires the isolated signer.
Read Quick StartA sample is not a valid payment. Production verification requires the isolated verifier and production settlement requires the isolated signer.