{"slug":"first-call-witness-28884c10","name":"First-Call Witness","summary":"Real MCP handshake witness graded per-client, signed expiring receipt.","status":"live","indexable":true,"listed_since":"2026-10-25T17:50:56.364572Z","sources":[{"source":"mcp_registry","external_id":"com.textforagents/first-call-latency-witness","owner_address":null,"seen_at":"2026-10-25T17:50:56.364572Z","removed_at":null}],"endpoints":[{"url":"https://textforagents.com/products/first-call-latency-witness/mcp","host":"textforagents.com","protocol":"mcp","state":"live","last_probe_at":"2026-10-26T09:24:09.469275Z","last_ok_at":"2026-10-26T09:24:09.469275Z","tools_count":3,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[],"payment_options":[],"usage":null,"assessment":{"method":"2026.10.1","checks":[{"id":"answers","state":"pass","reason":"Answered a check 5 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 0 days; 30 are needed."},{"id":"real_customers","state":"not_applicable","reason":"It does not sell over x402."},{"id":"clean_scan","state":"not_applicable","reason":"Its tool list has not been read yet."}],"passed":1,"applicable":3,"contradicted":false,"computed_at":"2026-10-26T14:49:53.043429Z"},"identity":{"endpoint_domains":["textforagents.com"],"proven_domains":[{"domain":"textforagents.com","proven_by":"mcp_registry","serves_endpoint":true,"as_of":"2026-10-25T17:50:56.364572Z"}],"proven_wallets":[],"namesakes":[],"namesake_count":0},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}