{"slug":"api-aventtech-com-validate-isin-c3e79267","name":"api.aventtech.com/validate/isin","summary":"Validate an ISIN securities identifier (ISO 6166) and check whether it is valid. Verifies structure and the Luhn check digit and extracts the country code and NSIN. Instant ISIN validation and verification for stocks, bonds and financial instruments.","status":"live","indexable":true,"listed_since":"2026-10-25T17:52:30.009874Z","sources":[{"source":"x402_bazaar","external_id":"https://api.aventtech.com/validate/isin","owner_address":"0x5100a134d768415cc4a25d7bdbcfc44394d62282","seen_at":"2026-10-26T16:31:00.931126Z","removed_at":null}],"endpoints":[{"url":"https://api.aventtech.com/validate/isin","host":"api.aventtech.com","protocol":"x402","state":"live","last_probe_at":"2026-10-26T03:24:49.602189Z","last_ok_at":"2026-10-26T03:24:49.602189Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"api-aventtech-com-b03605c7","name":"api.aventtech.com"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":3,"paid_calls_30d":3,"last_paid_at":"2026-10-08T06:26:19.781Z","reported_at":"2026-10-26T16:31:00.931126Z"},"assessment":{"method":"2026.10.1","checks":[{"id":"answers","state":"pass","reason":"Answered a check 11 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":"3 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":"2026-10-26T14:48:26.209403Z"},"identity":{"endpoint_domains":["aventtech.com"],"proven_domains":[],"proven_wallets":[],"namesakes":[],"namesake_count":0},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}