MCP Servers

Calendly MCP Server

A Model Context Protocol (MCP) server for the Calendly API. Manage events, invitees, and schedule meetings directly via AI assistants.

README

Calendly MCP Server

Fork of meAmitPatil/calendly-mcp-server with Scheduling API integration and OAuth 2.0 support.

A Model Context Protocol (MCP) server for the Calendly API. Manage events, invitees, and schedule meetings directly via AI assistants.

Installation

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "calendly": {
      "command": "npx",
      "args": ["-y", "calendly-mcp-server"],
      "env": {
        "CALENDLY_API_KEY": "your_personal_access_token_here"
      }
    }
  }
}

Cursor

Add to your Cursor MCP settings:

{
  "mcpServers": {
    "calendly": {
      "command": "npx",
      "args": ["-y", "calendly-mcp-server"],
      "env": {
        "CALENDLY_API_KEY": "your_personal_access_token_here"
      }
    }
  }
}

Configuration

Variable	Required	Description
`CALENDLY_API_KEY`	Yes*	Personal Access Token (get one here)
`CALENDLY_CLIENT_ID`	Yes*	OAuth 2.0 client ID (alternative to PAT)
`CALENDLY_CLIENT_SECRET`	Yes*	OAuth 2.0 client secret
`CALENDLY_ACCESS_TOKEN`	No	OAuth access token (if already obtained)
`CALENDLY_REFRESH_TOKEN`	No	OAuth refresh token
`CALENDLY_USER_URI`	No	User URI for automatic defaults
`CALENDLY_ORGANIZATION_URI`	No	Organization URI for automatic defaults

*Either CALENDLY_API_KEY or OAuth credentials (CALENDLY_CLIENT_ID + CALENDLY_CLIENT_SECRET) are required.

Tools (12)

OAuth

Tool	Description
`get_oauth_url`	Generate OAuth authorization URL
`exchange_code_for_tokens`	Exchange authorization code for tokens
`refresh_access_token`	Refresh an expired access token

API

Tool	Description
`get_current_user`	Get authenticated user info
`list_events`	List scheduled events with filtering
`get_event`	Get event details
`list_event_invitees`	List invitees for an event
`cancel_event`	Cancel a scheduled event
`list_organization_memberships`	List organization memberships

Scheduling API

Tool	Description
`list_event_types`	List available event types
`get_event_type_availability`	Check available time slots
`schedule_event`	Book a meeting (requires paid Calendly plan)

API Limitations

Scheduling API requires a paid Calendly plan (Standard or higher)
Event rescheduling is not supported via API (only cancellation)
Event type creation is not available via API
Standard Calendly API rate limits apply

Contributing

Pull requests welcome. See the upstream project for the original implementation.

License

MIT License. See LICENSE for details.

Credits

Original implementation by Amit Patil
Fork maintained by 84em.io

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