This Android SDK enables loyalty programs and rewards in third parties. The latest version is 1.5.3. Popdeem makes it easy to reward loyal customers for sharing their experiences with a brand on social media.
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.
Kippt, designed to make information workflow and archiving effortless, has launched a new API alongside a developer site and app gallery. The new, publicly available API simply opens up the existing Kippt API that continues to power the Kippt web service. Instead of pushing Kippt as a standalone product, the Kippt team hopes that the Kippt API will encourage developers to develop apps based on the Kippt platform.