Cal.com scheduling MCP server: manage bookings, event types, and availability.
Connect MCP to Claude, Cursor or any other MCP client and it stops being a tab you switch to. Cal.com scheduling MCP server: manage bookings, event types, and availability. The mcp mcp server is what makes that connection.
Part of the AIWerk MCP platform — curated, signed MCP recipes served either as npm packages for self-hosting or through our multi-tenant hosted bridge (bridge.aiwerk.ch).
Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.
The toolset is worth reading before you wire it up, because it tells you what the integration is really for:
cal_list_bookings — List bookings with optional filters (status, event type, date range)cal_get_booking — Get details of a specific booking by UIDcal_create_booking — Create a new booking (event type, attendee info, time)cal_cancel_booking — Cancel a booking by UIDcal_reschedule_booking — Reschedule a booking to a new timecal_list_event_types — List all event typescal_get_event_type — Get event type details by IDcal_create_event_type — Create a new event typecal_update_event_type — Update an existing event typecal_delete_event_type — Delete an event typecal_get_availability — Check available slots for an event type in a date rangecal_list_schedules — List all schedules (working hours / availability rules)Configuration is passed through the environment: CAL_API_KEY, CAL_BASE_URL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. MCP's toolset — cal_list_bookings, cal_get_booking, cal_create_booking and 10 more — is a fair guide to whether it matches your workflow. It is maintained by AIWerk; worth a glance at recent repository activity before you build anything load-bearing on it.
SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.
| Tool | What it does |
|---|---|
| cal_list_bookings | List bookings with optional filters (status, event type, date range) |
| cal_get_booking | Get details of a specific booking by UID |
| cal_create_booking | Create a new booking (event type, attendee info, time) |
| cal_cancel_booking | Cancel a booking by UID |
| cal_reschedule_booking | Reschedule a booking to a new time |
| cal_list_event_types | List all event types |
| cal_get_event_type | Get event type details by ID |
| cal_create_event_type | Create a new event type |
| cal_update_event_type | Update an existing event type |
| cal_delete_event_type | Delete an event type |
| cal_get_availability | Check available slots for an event type in a date range |
| cal_list_schedules | List all schedules (working hours / availability rules) |
| Cursor | Add to .cursor/mcp.json in your project or ~/.cursor/mcp.json globally: |
{
"mcpServers": {
"cal": {
"command": "npx",
"args": ["@aiwerk/mcp-server-cal"],
"env": {
"CAL_API_KEY": "cal_live_your_api_key_here"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| CAL_API_KEY | Credential the server authenticates with. | Yes |
| CAL_BASE_URL | Endpoint or connection string the server talks to. | Yes |
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