The TeamCity API allows developers to make HTTP requests to the TeamCity server and get a response. The API is REST-based and is available as an open-source plugin. This API can be authenticated using basic HTTP authentication.
Version 3 of the API introduces Professional and Enterprise editions. These make new types of user roles and access rights available. This version also includes the ability to build statistics charts and makes improvements related to VCS integration and quality maintenance.
TeamCity is a Java-based continuous integration and build management server from JetBrains.