Though a few shopping APIs are some of the earliest examples we have, their popularity has continued to grow for a simple reason: there's an obvious revenue model tied to them. When developers use one of the 82 Shopping APIs in our directory, that can mean money in the pocket of the API provider. And, by virtue of various affiliate and revenue-sharing programs tied to many of these APIs, it can also mean money in the pocket of the developer.
Thread Genius recently launched with the goal of mapping the world's visual taste. Thread Genius believes that web recommendations based on text fall short of capturing consumers' true taste. Its computer vision technology captures taste on visual input. Its API opens the service to others.