Screenshots.com API

Screenshots.com
Screenshots.com provides collections of screenshots from around the Internet. Their automated system monitors web pages for visual changes and captures new images of each change. This provides them with an extensive collection of the change of a website’s visual presence over time. Users can add their sites to the Screenshots.com capturing queue, and search for images by keyword or domain name. The Screenshots.com API exposes the image collection to developers and allows them to display selections on their web sites. It is a RESTful API that returns JSON-formatted data.