The Tesco PHP library by Laurence Roberts contains search for products, get customer's basket, get all product categories, and get all current offers. Tesco API is about e-commerce, food, and grocery accessibility for desktop and mobile applications. The most recent update according to Tesco site is that as of today, developers can register for the refreshed Tesco Labs API.
eBay has announced the availability of two new Sell and Buy APIs; the Taxonomy API and Buy Marketing API. The company also announced some of the existing Sell and Buy APIs have been updated to add new features. These APIs will eventually replace the eBay’s legacy Trading API..