MangoApps API

From the website: "MangoSpring open APIs allow authorized users or applications to use MangoSpring's Real-Time Collaboration platform to generate information feeds for activities you do in your existing enterprise systems and applications. These information feeds then get delivered over the MangoSpring's Real Time platform to people in your company for whom they are relevant and important enabling them be more productive and make better decisions." The API features a RESTful protocol and returns data via the XML format.