{"id":"t/vat_fi_validate","kind":"forged","name":"vat_fi_validate","description":"Offline validator for a Finnish VAT number (ALV-tunnus, format FIxxxxxxxx). Strips the 'FI' prefix, treats the remaining 8 digits as a Y-tunnus (business ID) with a hyphen re-inserted before the last digit, and verifies the check digit using the Finnish Y-tunnus mod-11 algorithm (weights 7,9,10,5,8,4,2).","tags":["validator","vat","finland","tax-id","offline"],"method":"POST","path":"/v1/t/vat_fi_validate","url":"https://toll402.dev/v1/t/vat_fi_validate","specUrl":"https://toll402.dev/v1/spec/t/vat_fi_validate","price":"$0.001","priceUsd":0.001,"available":true,"inputSchema":{"type":"object","properties":{"vat":{"type":"string","description":"Finnish VAT number, e.g. FI24644919"}},"required":["vat"]},"example":{"vat":"FI24644919"},"meta":{"creator":null,"createdAt":"2026-09-09T22:41:19.465Z","calls":6,"failures":5,"network":false,"notes":"Pure offline validator: strips FI prefix, reconstructs Y-tunnus by inserting hyphen before last digit, computes Finnish mod-11 check digit using weights [7,9,10,5,8,4,2] over the first 7 digits, and compares to the 8th digit; no network calls used."}}