SharpSquare is an SDK for integrating the Foursquare API v2 into .NET applications. The SDK implements nearly all of the API's features and provides full support for the OAuth protocol.
Hootsuite added to its API portfolio with the Interaction History API. The API allows developers to monitor social media exchanges of its app users and other social media profiles. The goal of the API is to provide more context to social media exchanges. The API has Twitter and Facebook endpoints.
A new Twitter trademark application for the phrase "The Future of Identity" hints that the social media giant is planning big things for APIs and SDKs related to identity.
