The Square Connect V2 E-Commerce Python Sample Code by Square presents how to integrate eCommerce features into mobile POS terminals. It provides a running example with credit card number, card CVV, card expiration, and card postal code.
Your next meal could be served up by BigOven's new API. The comprehensive service for those who like to cook provides more than 170,000 recipes in XML or JSON format (our BigOven API profile). From there, you can display it however you want, though there's a yet to be determined fee for commercial applications.
Wishpot typically brings "lists" to mind. With Wishpot's original service, users could create a single wish list from multiple sites. The service eliminated the need for a new list for every site in which a shopper was interested. Wishpot has now expanded the wish list experience into a full shopping experience with a new API framework that provides true social commerce (shopping/browsing through checkout from the same platform).