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.
The Votizen API aims to get friends to involve their friends in supporting candidates. The API website notes that the API is entirely based on HTTP. Votizen is based on the premise that, "Voters are more likely to listen to friends than campaign volunteers." Votizen is the first "social campaigning platform built entirely on personal connections."
Discussion of Google's recent acquisition of Jambool has largely centered around its virtual currency platform, Social Gold. The power behind that platform comes in the form of the Social Gold API. Again, Google has bought a company whose API is central to its success.
Despite the recent privacy snafus from some social media platforms, developers are just as interested in creating social applications as they ever were. Here we take a look at some the social APIs in ProgrammableWeb's directory that get the most traffic, and what developers can do with them.