Rainforest API allows you to retrieve Amazon product data by GTIN, ISBN, UPC or EAN code when making a type=product query.

To lookup Amazon product data by GTIN, ISBN, UPC or EAN code you simply use the gtin parameter instead of the asin when making a type=product request.

When the gtin parameter is supplied Rainforest will attempt to look up the GTIN/ISBN/UPC/EAN on the Amazon domain supplied in the amazon_domain parameter, before then retrieving product details for the resultant ASIN. It is important that if you are looking up a GTIN/ISBN/UPC/EAN you supply the correct Amazon domain in the amazon_domain parameter - i.e. amazon.co.uk in the example below for the UK-issued EAN of 5702015866637 .

type=product&amazon_domain=amazon.co.uk&gtin=5702015866637

The full Product Data API request would be:

Note that Rainforest will cache the GTIN-to-ASIN mapping for 2 months. To force a new GTIN lookup (for example, if you suspect the existing mapping is stale), use the skip_gtin_cache=true request parameter (note that using skip_gtin_cache=true decrements 2 credits from your balance, instead of 1).

Next Steps      Getting Started      Request Parameters