Yahoo on Tuesday
The product search API lets developers add applications onto commerce sites that search the Yahoo Shopping database by keyword, merchant, price range or product category and filter merchants according to their Yahoo User ratings.
The price comparison grid API provides access to millions of products from thousands of merchants with base price, tax and shipping information and total price, based on ZIP code.
Yahoo and other software and Internet companies release APIs publicly to encourage developers to build applications that work with their platform and thus increase the number of people who use their software. Most recently, Yahoo and Google havetechnologies.
Also on Tuesday, online comparison Web site Shopping.com announced it will provide access to MSN to millions of products from its database of more than 10,000 merchants. Shopping.com is being acquired by online auction giant eBay.