Defensio, the anti-spam service, offers an API that can be integrated into blogs and web sites to fight spam comments and other unwanted spam (details at our Defension API profile). The service appears to be run by a small team, and is similar in purpose to Akismet, the much larger spam filtering service from Automattic (which powers WordPress.com), who also offer an anti-spam API.
TouchTunes, the world's largest jukebox network, has opened up its APIs for the first time. The TouchTunes platform pulls data from over 60,000 locations. The platform enables the various locations to enjoy social interactions through shared experiences. Since the platform's original release in 2011, TouchTunes has always envisioned developers would be able to build on top of its platform. Now, TouchTunes is making that vision a reality.