TeamCity is a continuous delivery server that allows developers to satisfy customers through early and continuous delivery. It facilitates automation of the entire deployment pipeline from continuous integration to deployment. This includes features such as dependent and multi-step builds, deployment scripting, automated testing, and roles for developers, QA, and managers. TeamCity also provides scalability, integration with other tools, custom reports, and metrics for monitoring. The free professional edition supports up to 20 build configurations while the paid enterprise edition has unlimited configurations.