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GTIN/Barcode Resolver
x402
GTIN/Barcode Resolver is a paid API for AI agents from handel.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Validates a barcode check digit locally and then looks up product details (name, brand, category, packaging, quantity, images) across Open Food Facts and a general product database.
Price / call$0.005
Success—
StatusUnknown
How this service works
Looks up a barcode number across Open Food Facts and a general product database, returning product name, brand, category, packaging, quantity and images where present. The check digit is computed locally before anything is queried: an invalid number is a typo, and reporting it as not found would send the caller looking in the wrong place.
Output
Returns a structured object containing the product name, brand, category, packaging type, quantity, and product images (where available), sourced from Open Food Facts and a general product database. Also includes the result of the local check digit validation so callers know immediately if the input barcode is malformed rather than simply not found.
Example use cases
Grocery scanner app product lookup
“I just scanned a barcode at the store — the number is 0012000161155. Can you tell me what product this is, who makes it, and what category it falls under?”
Inventory management barcode identification
“We received a shipment and I need to identify this product by its GTIN: 00850026076021. What's the product name, brand, and packaging?”
E-commerce listing enrichment
“I have a product with barcode 3017620422003 that I need to list online — can you pull the product name, brand, category, quantity, and any available images for it?”
Technical details
Endpoint
POSThttps://handel.halowerk.com/v1/gtin-resolveWhen to prefer
Choose this endpoint when you need to resolve a barcode (GTIN, EAN, UPC) to core product metadata — name, brand, category, packaging, quantity, images — and you want check-digit validation done before any remote lookup so typos are caught immediately. Prefer it over raw Open Food Facts API calls when you want a single unified call across multiple databases with normalization. It complements the sibling endpoints on the same host for deeper data like ingredients, allergens, or nutritional values.
Side effects
- Invalid check digit — barcode is detected as a typo before any remote query is made; returns a validation error rather than 'not found'
- Product not found in either Open Food Facts or the general product database — returns a not-found response
- Malformed or non-numeric barcode input — returns a validation error
- Network or upstream database unavailability — may return a service error
- Incomplete product record — some fields (e.g. images, packaging) may be null if the database entry lacks them
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| gtin | string | EAN-8, EAN-13, UPC-A or GTIN-14. |
| sources | array | Which sources to query. Both if omitted. |
| skip_checksum | boolean | Query even when the check digit is wrong. |
Tags
x402
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