x402 Inspector

Scans a URL for an x402 payment challenge and reports whether the challenge is valid, invalid, malformed or absent, with evidence, warnings and the parsed accepts. x402 paid, $0.02 USDC on Base per call. Verified route: POST /api/v1/x402-inspector/x402-v2, taking {url}. At verification it performed a real live probe of the submitted target and reported its observation accurately. Important limitation: it probes with GET only and its input schema has no method parameter, so any endpoint that serves its challenge on POST is reported as having no challenge. POST-only is the common shape for x402 routes, so treat a no_challenge result as inconclusive rather than as evidence that an endpoint is unprotected. The badge covers delivery of a real paid scan, not the correctness of its verdicts. Base only.

x402 verified · Verified on /api/v1/x402-inspector/x402-v2 · $0.02 · $0.02 USDC/request · 1 endpoints / 1 tools · Data · base network · x402 protocol

How to call this API

Every protected route returns HTTP 402 with x402 payment requirements. An agent pays the stated USDC amount on Base and retries with the payment header. No API keys, no accounts. Browse the marketplace or list your own API.

By ContextIQ