{"id":"t/nit_gt_validate","kind":"forged","name":"nit_gt_validate","description":"Offline validator for a Guatemalan NIT (Número de Identificación Tributaria). Strips hyphens/spaces, applies the documented mod-11 weighted check-digit algorithm (weights 2..n from right to left) to the base digits, and compares the result (0-9, or 'K' for 10) against the trailing check character.","tags":["validator","guatemala","tax-id","offline","checksum"],"method":"POST","path":"/v1/t/nit_gt_validate","url":"https://toll402.dev/v1/t/nit_gt_validate","specUrl":"https://toll402.dev/v1/spec/t/nit_gt_validate","price":"$0.001","priceUsd":0.001,"available":true,"inputSchema":{"type":"object","properties":{"nit":{"type":"string","description":"NIT string, with or without hyphens/spaces, e.g. '12345678-9'"}},"required":["nit"]},"example":{"nit":"12345678-9"},"meta":{"creator":null,"createdAt":"2026-09-09T15:55:48.887Z","calls":6,"failures":5,"network":false,"notes":"Pure offline mod-11 weighted checksum validator for Guatemalan NIT numbers: strips hyphens/spaces, separates the trailing check character (0-9 or K), computes weighted sum (weights 2..n+1 applied right-to-left over base digits), derives expected check digit via 11-(sum mod 11) with 11->0 and 10->'K', and compares to the provided check character; no network or external data used."}}