Agent protocol discovery scan with x402 USDC payment on Base. Verified route: POST /api/v1/agent-protocol-inspector/x402-v2 at 0.02 USDC, taking {url} and reporting MCP, A2A and ARD detection with evidence, plus llms.txt presence. Verified against payapi.market, where it confirmed the live MCP endpoint through a JSON-RPC handshake and located llms.txt, and correctly reported A2A and ARD as not detected. Base only.
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.
DNS record lookup with x402 USDC payment on Base. Verified route: POST /api/v1/dns-inspector/x402-v2 at 0.02 USDC, taking {url} and returning A, AAAA, CNAME, NS, MX, TXT, SOA and CAA records plus SPF and DMARC posture and a CAA verdict. Verified against payapi.market, where the returned A, NS, MX and TXT records matched public DNS exactly. Base only.
Current per-million-token input and output pricing for LLMs, as a single machine-readable catalogue for agents that need to cost a call before making it. One paid GET returns every model with its id, display name, provider, tokenizer family, context window, input and output price per million tokens, an open-source flag and, where known, the provider console URL. Verified route: GET /api/v1/token-inspector/pricing/x402-v2 at 0.02 USDC on Base, returning 32 models across 11 providers with a per-call generatedAt timestamp.