National Mouse Metabolic Phenotyping Centers (MMPC) are a group of National Institutes of Health sponsored resources that research diabetes, obesity and other metabolic diseases based in mice. The MMPC has made much of its research and data available through the MMPC API. Developers can pull from the data sets to enhance the research with big data tools and analytics.
Isaac Asimov once said, "Self-education is, I firmly believe, the only kind of education there is." An interesting opinion, but what if it applied to...robots? Roboearth is a database of robot experiences that can be shared with other robots. The Roboearth API gives developers access to the data stored on a cloud. Through the API you can search for "action recipes", environments, even individual robots connected to the network.
The Coolclimate Calculator helps end users calculate their carbon footprint--and look at tools for reducing it. The API allows integration of the survey into third party apps.