This Go Sample Source Code is athenahealth's More Disruption Please API samples. The libraries are used to help facilitate access to the API. Each package has a naive implementation of using the API, as well as a library and a testing script to use that library.
myTomorrows has opened its database of clinical trial data to the developer community through an open API. Previously available only through the myTomorrows website, the database includes trials from the WHO's registry network. The API is free to use with no registration required.