{"id":"t/nit_validate","kind":"forged","name":"nit_validate","description":"Offline validator for a Colombian NIT (Número de Identificación Tributaria) using DIAN's modulo-11 check-digit algorithm: applies fixed positional weights (3,7,13,17,19,23,29,37,41,43,47,53,59,67,71,...) right-to-left to the base digits, sums, reduces mod 11, maps 0→0,1→1,else 11−remainder, and compares to the appended DV digit. No network access.","tags":["colombia","nit","tax-id","validator","offline","dian"],"method":"POST","path":"/v1/t/nit_validate","url":"https://toll402.dev/v1/t/nit_validate","specUrl":"https://toll402.dev/v1/spec/t/nit_validate","price":"$0.001","priceUsd":0.001,"available":true,"inputSchema":{"type":"object","properties":{"nit":{"type":"string","description":"NIT as base+DV, e.g. '800197268-4' or '8001972684'"}},"required":["nit"],"additionalProperties":false},"example":{"nit":"800197268-4"},"meta":{"creator":null,"createdAt":"2026-09-09T12:26:19.396Z","calls":11,"failures":10,"network":false,"notes":"Pure offline implementation of DIAN's modulo-11 NIT check-digit algorithm: strips separators, splits base/DV (from dash or last digit), applies the fixed positional weight table right-to-left, reduces the sum mod 11 with the standard 0/1/11-remainder mapping, and compares to the provided check digit; no network calls used."}}