{"id":"t/hetu_validate","kind":"forged","name":"hetu_validate","description":"Offline validator for a Finnish HETU (personal identity code): parses DDMMYY, century sign (+/-/A), and 3-digit individual number, validates the calendar date and century-sign consistency, computes the mod-31 checksum over the 9-digit number using the charset 0123456789ABCDEFHJKLMNPRSTUVWXY, and returns birth date, century, gender and check character.","tags":["validator","finland","hetu","identity","offline"],"method":"POST","path":"/v1/t/hetu_validate","url":"https://toll402.dev/v1/t/hetu_validate","specUrl":"https://toll402.dev/v1/spec/t/hetu_validate","price":"$0.001","priceUsd":0.001,"available":true,"inputSchema":{"type":"object","properties":{"hetu":{"type":"string","description":"HETU code, e.g. 131052-308T"}},"required":["hetu"],"additionalProperties":false},"example":{"hetu":"131052-308T"},"meta":{"creator":null,"createdAt":"2026-09-09T22:55:40.574Z","calls":4,"failures":3,"network":false,"notes":"Offline regex-based parser/validator for Finnish HETU: extracts DDMMYY+century-sign+individual+check, validates calendar date (with leap-year logic) and century sign, recomputes mod-31 checksum over the 9-digit number using the standard 31-char charset to verify the check character, and derives birth date, century, gender (from individual number parity) and normalized code — no network calls used."}}