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GTIN to ASIN
GTIN to ASIN is a paid API for AI agents from agents.openwebninja.com, paid per call via MPP, price unknown, status unknown (last checked 2026-10-14).
Looks up Amazon products by GTIN, EAN, UPC, or ISBN and returns matching ASINs with title, photo, URL, price, rating, and sales rank.
Price / call—
Success—
StatusUnknown
How this service works
Find Amazon products by GTIN, EAN, UPC, or ISBN. Returns a list of matching ASINs along with key product attributes (title, photo, URL, price, rating, rank).
Output
Returns an array of matching Amazon products, each with: ASIN, canonical Amazon product URL, full product title, main product image URL, displayed price, average star rating, total number of customer ratings, sales rank integer, and the rank category. Also includes a response status and unique request ID.
Example use cases
Barcode to Amazon listing for price check
“I scanned a product with UPC 796030114977 at the store — can you find it on Amazon US and tell me the price, rating, and sales rank so I can decide whether to buy it cheaper online?”
ISBN lookup for book reselling
“I have an ISBN 9780307474278 and I want to know which Amazon ASIN it maps to on the US marketplace, along with the current price and how many ratings it has.”
EAN product catalog enrichment
“I have an EAN-13 code 5901234123457 for a product I'm selling — can you find the matching Amazon ASIN and grab the product title, main photo URL, and its sales rank in the UK marketplace?”
Technical details
Endpoint
GEThttps://agents.openwebninja.com/realtime-amazon-data/gtin-to-asin?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a physical product barcode (GTIN, UPC, EAN-13) or book ISBN and need to resolve it to one or more Amazon ASINs with enriched product data. It is the right choice for barcode-to-Amazon lookups, catalog enrichment pipelines, price comparison from physical retail, and reseller workflows where you start from a universal product code rather than a keyword or ASIN. Prefer this over keyword-based Amazon search when you have a precise identifier and need exact product matching across multiple Amazon marketplaces.
Side effects
- No matching ASIN found for the provided identifier — products array is empty
- Invalid or malformed GTIN/UPC/EAN/ISBN returns an error status
- Product exists on Amazon but is not indexed by this identifier in the selected country marketplace
- Rate limiting or quota exhaustion returns a 402 or 429 error
- Unsupported country code returns a validation error
- Price or rank may be null if the product listing lacks those fields
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| country | string | Sets the Amazon domain, marketplace country, language and currency. |
| product_identifierrequired | string | Product identifier to look up on Amazon. Supports GTIN, EAN-13, UPC, or ISBN. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| data | object | |
| status | string | The status of the response. |
| request_id | string | A unique identifier for the request. |
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