foursquare-ios-api is an Objective-C wrapper that allows users to integrate version 2 of the Foursquare API into iOS applications. The wrapper's prerequisites are Xcode 5+, iOS 7.0+ as a base SDK, and iOS 5.0+ as a deployment target.
Magnify.net, a web service that allows individuals and companies to build and curate their own video channels and communities, has announced an API to enable developers to pull videos and data from their Magnify.net channels and integrate them into their own applications (details at our Magnify.net API Profile).
The business social network LinkedIn is shutting off access to its LinkedIn API for one company over what LinkedIn calls a terms of service violation. Headhunting app Pealk released a notice that it "will be no more" by next week. It raises the importance of reading the legal details, as well as the different definitions of open.