August 9, 2016
Single purpose API
A project of the Elgg Foundation, Elgg is a free open source social networking engine licensed to users under the GNU Public License v2. The REST Elgg API allows developers to integrate Elgg and offer new apps for it. To give a sense of its size, 1,646 plugins have been created so far by the user community, with nearly 3 million downloads. Examples of plugins include blogs, forums, social bookmarks.
You may not have realized the benefits of being able to use tweets to find out where your Amazon delivery is, but TrackThis wants to change that. It's an app that combines more than six different APIs in order to let you track your packages over email, text message, Facebook or Twitter. It monitors your packages and when they move it sends you a message with the new location and ETA. TrackThis supports FedEx, UPS, USPS, DHL and other tracking codes.