5 Services from x402-doctor.fizzl.eu

Pre-flight safety check for an x402 payment endpoint — returns go/caution/no_go verdict, recommended payment option, and reasons before your agent pays anything

Performs a comprehensive pre-payment analysis of an x402 endpoint, returning a pay/no-pay verdict, 30-day reliability history, seller reputation across endpoints, domain stability checks, and full diagnostics — without ever paying the endpoint.

Diagnoses and debugs an x402 payment endpoint by running a suite of read-only checks across the 402 challenge, accepts configuration, resource URL, Solana settlement readiness, wallet/agent compatibility, and discovery/browser paywall setup, returning each check with a status and fix hint.

Diagnoses a broken x402 payment endpoint and returns concrete, stack-specific code fixes (Express, Next.js, Hono, or raw HTTP) with your own payTo, amount, network, and route filled in.

Checks up to 10 x402 payment endpoints in a single call and returns a go/caution/no_go safety verdict, recommended payment option, and batch totals for each