The Wowza Statistics PHP Sample Code by Wowza demonstrates how to interact with the API. It allows developers to implement statistics per application, total server statistics, and historical statistics.
The ProPublica Forensics API allows access to data from Propublica's investigation into the quality of autopsies across America. The API provides "state and county-level data about coroner and medical examiner systems in the United States." The RESTful API is available in JSON, XML and JSON-P formats. An astounding variety of data are available, from the ratio of autopsies to what is expected, to the number of uncertified pathologists working in a state or county system, and on and on.
Earlier this week Google announced new tools that aim to make it easier for content providers to share when they are streaming live video. The announcement includes the addition of an update to the Indexing API and the addition of structured data for livestreams.