The RunKeeper Health Graph iOS SDK by Reid van Melle allows to communicate with the API to implement running features into applications. It contains ASI HTTP request, SB JSON, and OAuthClient2. Although is not official, the SDK will be constantly updated over time to facilitate integration.
Imprivata has launched an API for its OneSign single sign-on product: the OneSign ProveID API. OneSign offers a specialized single sign-on solution custom tailored to the healthcare industry. The new API allows developers in the healthcare industry to deliver electronic health records in a virtual desktop environment.