{"slug":"eu-verify-3e64bba0","name":"eu-verify","summary":"Deterministic ISIN check before routing an order or paying a market-data API: structure regex (2-letter country or XS/EU, 9-char NSIN, check digit) and the Luhn checksum over the base-36 expansion. Query: ?isin=US0378331005. Returns valid, country_code, nsin, check_digit and is_international. A corrupted ISIN means a rejected order or the wrong instrument. Pure offline computation, 1y cache.","status":"live","indexable":true,"listed_since":"2026-10-25T17:52:33.572136Z","sources":[{"source":"x402_bazaar","external_id":"https://data.greeneris.io/v1/validate/isin","owner_address":"0x6ab8efe305cce67daa48c97bde29c04402822dff","seen_at":"2026-10-26T06:00:52.780174Z","removed_at":null}],"endpoints":[{"url":"https://data.greeneris.io/v1/validate/isin","host":"data.greeneris.io","protocol":"x402","state":"live","last_probe_at":"2026-10-26T00:09:25.793077Z","last_ok_at":"2026-10-26T00:09:25.793077Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"data-greeneris-io-b42ba66f","name":"data.greeneris.io"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":1,"paid_calls_30d":1,"last_paid_at":"2026-10-08T08:22:27.226Z","reported_at":"2026-10-26T06:00:52.780174Z"},"notice":"Not affiliated with addrbook — claim or request removal."}