Countdown API allows you to retrieve Ebay product data by GTIN, ISBN, UPC or EAN code when making a type=product query. There is no additional charge for this service.

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

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

type=product&ebay_domain=ebay.co.uk&gtin=5702015866637

The full Ebay Product Data API request would be:

Next Steps      Getting Started      Request Parameters