- JSON API - API to emulate Hudson's JSON one. e.g. usable for XFD. See also TeamCity's bundled REST API
- Sharp2City - .Net API for TeamCity REST API (announcement)
- TeamCitySharp - *.NET Library to access TeamCity via REST API (newer take).
* [CI Game|https://github.com/MikeHanson/TeamCityCiGame] - (not yet functional)
- Dependencies Graph - visualizing dependencies between build configurations. announcement
- Maven/TeamCity dependencies Tab - displays Maven project dependencies marking those with corresponding TeamCity build configurations
- Pivot report - based on the new pivot viewer control for Silverlight, a proof on concept for displaying TeamCity projects/buildtypes/builds (announcement)
- Queue Statistics Report - report for average queue times for builds grouped by build configurations and agents
- User Roles Report - a plain list report to list all projects and all users with their roles in the projects.
- Flaky tests analyser - allows to detect flaky/unstable tests in a project (issue, build)