Cal.com MCP: Documentation

Updated: 25 July 2026

Connection

Remote: Streamable HTTP at https://mcp.cal.com/mcp. Locally: npx @calcom/cal-mcp@latest (stdio), authorized via the CAL_API_KEY environment variable — the key comes from your Cal.com account settings and should never be committed to git. The core toolset is enabled by default; the --all-tools flag unlocks the extended set.

Tools

A core set of 9 commands: getBooking, getBookings, createBooking, rescheduleBooking, cancelBooking — booking management, plus getEventTypes, getEventTypeById, updateEventType, deleteEventType — event type management. The server has 34 tools total: the extended set (via --all-tools) adds schedules and availability.

Agent flow

"Show tomorrow's bookings and move the 3pm meeting to 4pm", "create a '30-min demo' event type and book a Thursday slot", "cancel all meetings tagged cancelled-client" — scheduling with no Cal.com dashboard.

Pricing

The MCP server is open source and free; Cal.com itself is freemium — some capabilities (team features, advanced workflows) are gated behind paid plans.