The AgileZen Python SDK by Bertrand Vidal allows to access and test the API. In the Kaizen (continuous development) folder on GitHub, developers can find API, client, and requests. The test folder includes configuration and the respective tests for API, client, and requests. Additional development information at http://dev.agilezen.com/
Our API directory now includes 88 project management APIs. The newest is the Trajectory API. The most popular, in terms of mashups, is the Basecamp API. We list 14 Basecamp mashups. Below you'll find some more stats from the directory, including the entire list of project management APIs.