This documentation focuses on current API v9 and the old v8 version will soon be deprecated. The documentation is already extended to Webhooks API and will soon be extended to missing services like Reports API v3.
The documentation is split between a friendly Getting Started section, introducing the most important domains and how to interact with them, and a API Reference section, with a detailed listing of available endpoints and configurations.
For more details about the involved entities, domains or product related features, please refer to Toggl Track Knowledge Center.