{"slug":"keystone-opportunity-api-8e547728","name":"Keystone Opportunity API","summary":"Deterministically score a task brief for deliverables, acceptance criteria, deadlines, constraints, and usable scope before committing time. No AI calls; same brief always yields the same score.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:28.204573Z","sources":[{"source":"x402_bazaar","external_id":"https://keystone-opportunity-api.keystone-opportunity.workers.dev/v1/brief-check","owner_address":"0xd3fad775704a0ed209315a406c3d99ed589ee723","seen_at":"2026-10-26T18:17:08.934778Z","removed_at":null}],"endpoints":[{"url":"https://keystone-opportunity-api.keystone-opportunity.workers.dev/v1/brief-check","host":"keystone-opportunity-api.keystone-opportunity.workers.dev","protocol":"x402","state":"live","last_probe_at":"2026-10-25T23:43:34.206176Z","last_ok_at":"2026-10-25T23:43:34.206176Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"keystone-opportunity-api-keystone-opportunity-workers-d-27cdf5eb","name":"keystone-opportunity-api.keystone-opportunity.workers.dev"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":7,"paid_calls_30d":7,"last_paid_at":"2026-10-26T12:01:30.824Z","reported_at":"2026-10-26T18:17:08.934778Z"},"assessment":{"method":"2026.10.1","checks":[{"id":"answers","state":"pass","reason":"Answered a check 15 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":"fail","reason":"7 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":1,"applicable":4,"contradicted":false,"computed_at":"2026-10-26T15:42:31.404191Z"},"identity":{"endpoint_domains":["keystone-opportunity.workers.dev"],"proven_domains":[],"proven_wallets":[],"namesakes":[{"slug":"keystone-opportunity-api-9489c94d","name":"Keystone Opportunity API","proven_domain":null}],"namesake_count":1,"identity_checks":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}