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fittings GTIN Barcode Validator
x402
fittings GTIN Barcode Validator is a paid API for AI agents from fittings.sh, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Validates a GTIN-8, GTIN-12, GTIN-13, or GTIN-14 barcode number using the GS1 mod-10 check digit algorithm and reports its format.
Price / call$0.003
Success—
StatusUnknown
How this service works
Validate a GTIN-8/12/13/14 barcode number by GS1 mod-10 check digit and report its format.
Output
Returns a validation result indicating whether the GTIN passes the GS1 mod-10 check digit algorithm, the detected GTIN format (GTIN-8, GTIN-12, GTIN-13, or GTIN-14), and whether the barcode is structurally valid.
Example use cases
Retail product barcode verification
“I need to verify that the barcode 012345678905 on this product is a valid UPC-A — can you run the GS1 check digit and tell me if it passes?”
E-commerce catalog data quality check
“Before I upload this product to our catalog, can you validate that the GTIN-13 barcode 4006381333931 has a correct check digit?”
Supply chain shipping label audit
“We received a shipment with GTIN-14 barcode 10012345678902 on the outer case — is that a valid GS1 GTIN-14 or is the check digit wrong?”
Technical details
Endpoint
GEThttps://fittings.sh/v1/valid/gtinWhen to prefer
Use this endpoint when you need to programmatically verify that a GTIN barcode number conforms to the GS1 standard before ingesting it into a catalog, POS system, or supply chain application. Prefer this over manual check-digit computation when you need both format classification and validity in a single call.
Side effects
- Non-numeric input returns an error or invalid result
- Input with wrong digit count for any GTIN format returns invalid
- Check digit mismatch returns validation failure
- Missing or empty gtin query parameter causes request error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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