ClickUp

ClickUp keeps tasks, docs, goals and chat in one Workspace, organized into Spaces, Folders and Lists. Its MCP server, in public beta on every plan, searches, creates and updates tasks, and works with comments, docs, time tracking and Chat. It signs in with OAuth only. Without the Everything AI add-on, MCP calls are capped per rolling 24 hours: 50 on the Free Forever plan and 300 on Unlimited and above; with it, the API's own rate limits apply.

The REST API takes a personal token, which starts with pk_, in the Authorization header as is; OAuth apps send Bearer <token> instead. Most endpoints are v2 and newer ones, such as Chat, are v3, both under the base URL above. In v2 paths a Workspace is called a team.