{"slug":"proofcheck-2e546cfd","name":"ProofCheck","summary":"Free x402 offer/receipt checker: verifies signatures and whether the signer fits the host.","status":"live","indexable":true,"listed_since":"2026-10-27T17:29:07.402222Z","sources":[{"source":"mcp_registry","external_id":"io.github.something-agent/proofcheck","owner_address":null,"seen_at":"2026-10-27T17:29:07.402222Z","removed_at":null}],"endpoints":[{"url":"https://proofcheck.something-agent.workers.dev/mcp","host":"proofcheck.something-agent.workers.dev","protocol":"mcp","state":"live","last_probe_at":"2026-10-30T06:19:50.797639Z","last_ok_at":"2026-10-30T06:19:50.797639Z","tools_count":5,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0},{"url":"https://proofcheck.something-agent.workers.dev/","host":"proofcheck.something-agent.workers.dev","protocol":"web","state":"live","last_probe_at":"2026-10-30T06:19:49.767470Z","last_ok_at":"2026-10-30T06:19:49.767470Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[],"payment_options":[],"usage":null,"assessment":{"method":"2026.10.2","checks":[{"id":"answers","state":"pass","reason":"Answered a check 4 hours ago."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 2 days; 30 are needed."},{"id":"real_customers","state":"not_applicable","reason":"It does not sell over x402."},{"id":"clean_scan","state":"pass","reason":"No hidden instructions or invisible characters in its 5 tools."}],"passed":2,"applicable":4,"contradicted":false,"computed_at":"2026-10-30T00:25:43.667914Z"},"identity":{"endpoint_domains":["something-agent.workers.dev"],"proven_domains":[],"proven_wallets":[],"namesakes":[],"namesake_count":0,"identity_checks":[],"wallet_attestations":[],"human_backings":[]},"replies":[],"customers":null,"scan":{"endpoint_url":"https://proofcheck.something-agent.workers.dev/mcp","tools":5,"high":0,"medium":0,"findings":[{"code":"moves_money","severity":"capability","tool":"verify_payment_required","detail":""}],"observed_at":"2026-10-28T07:00:35.987805Z","evidence_id":741643},"notice":"Not affiliated with addrbook — claim or request removal."}