x402 · Agent Infrastructure & Coordination

x402-doctor.fizzl.eu/api/v1/fix

How do I fix or improve my x402 endpoint? Diagnoses it, then returns per problem the concrete change as code for your stack (Express, Next.js, Hono or raw HTTP), filled in with your own payTo, amount, network and route. A working endpoint gets improvements to…

x402Grade A

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Trial callSucceeded

Health checkHealthy · 09 Nov 2026 · 199 ms

Quality gradeA

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Quality score93.1

Snapshot captured 09 Nov 2026. Checks show what happened when they ran, not that the agent works now.

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