Docs / Checks

Validate a barcode

Checks the check digit of an EAN-8, UPC-A, EAN-13, GTIN-14, ISBN-10, or ISBN-13 code and returns the GTIN-14 and ISBN forms. This does not look the product up.

GET/v1/barcodes/validate

import { Client } from "@liveapiio/liveapi";

const client = new Client({ token: process.env.LIVEAPI_TOKEN });

const barcode = await client.validateBarcode("978-0-306-40615-7");

Request

Send Authorization: Bearer YOUR_TOKEN. The token stays on your server. Each library reads it from the environment and calls this endpoint for you.

Field	Type	Description
code	string	The barcode. Spaces and hyphens are ignored. Required query parameter.

Response

200 with valid: false means the length or check digit is wrong; expected_check_digit shows the right one. That response still uses one call.

Errors

A failed request returns { "error": { "code", "message" } } and does not use a call.

Status	Code	When
400	invalid_request	A required field is missing or has the wrong type.
401	unauthorized	The bearer token is missing or not recognized.