Google Calendar
Enables management of Google Calendar events across multiple calendars with natural language support, including searching events, checking availability, creating/updating/deleting events, responding to invitations, and auto-generating Google Meet lin
What is Google Calendar?
Google Calendar is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to enables management of google calendar events across multiple calendars with natural language support, including searching events, checking availability, creating/updating/deleting events, responding t...
Enables management of Google Calendar events across multiple calendars with natural language support, including searching events, checking availability, creating/updating/deleting events, responding to invitations, and auto-generating Google Meet lin
This server falls under the Business Applications category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Enables management of Google Calendar events across multiple
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx google-calendar-mcp-serverConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Google Calendar
The Google Calendar MCP Server is a streamable HTTP-based MCP server that gives AI assistants full management access to Google Calendar, supporting natural language event creation, multi-calendar search, free/busy availability checking, invitation responses, and automatic Google Meet link generation. It can be run locally with Node.js or deployed as a Cloudflare Worker for persistent remote access. Users who want Claude to schedule meetings, find open time slots, or manage complex multi-attendee events through conversation will find this server indispensable.
Prerequisites
- A Google account with Google Calendar enabled
- A Google Cloud project with the Calendar API enabled and OAuth 2.0 credentials (Client ID and Client Secret) created
- Bun runtime (https://bun.sh) or Node.js 18+ for local deployment
- An MCP-compatible client such as Claude Desktop that supports the mcp-remote transport
- Optional: a Cloudflare account for cloud deployment with Wrangler CLI installed
Create Google OAuth credentials
In Google Cloud Console, create a project, enable the Google Calendar API, and create OAuth 2.0 credentials of type 'Web application'. Add http://127.0.0.1:3001/oauth/callback as an authorized redirect URI for local development.
Clone the repository and install dependencies
Clone the server repository and install dependencies using Bun.
git clone https://github.com/iceener/google-calendar-streamable-mcp-server.git
cd google-calendar-streamable-mcp-server
bun install
cp env.example .envConfigure environment variables
Edit the .env file with your Google OAuth credentials, the redirect URI, and a 32-byte base64 encryption key for token storage.
PORT=3000
AUTH_ENABLED=true
PROVIDER_CLIENT_ID=your-google-client-id.apps.googleusercontent.com
PROVIDER_CLIENT_SECRET=your-google-client-secret
OAUTH_SCOPES=https://www.googleapis.com/auth/calendar
OAUTH_REDIRECT_URI=http://127.0.0.1:3001/oauth/callback
RS_TOKENS_ENC_KEY=base64-encoded-32-byte-keyStart the local server and complete OAuth
Start the development server, then open the authorization URL in your browser to complete the OAuth flow and grant calendar access.
bun devConfigure your MCP client to connect via mcp-remote
Add the server to your Claude Desktop config using the mcp-remote transport to connect to the local HTTP endpoint.
{
"mcpServers": {
"google-calendar": {
"command": "npx",
"args": ["mcp-remote", "http://127.0.0.1:3000/mcp", "--transport", "http-only"],
"env": { "NO_PROXY": "127.0.0.1,localhost" }
}
}
}Google Calendar Examples
Client configuration
Claude Desktop config using mcp-remote to connect to a locally running Google Calendar MCP server.
{
"mcpServers": {
"google-calendar": {
"command": "npx",
"args": ["mcp-remote", "http://127.0.0.1:3000/mcp", "--transport", "http-only"],
"env": {
"NO_PROXY": "127.0.0.1,localhost"
}
}
}
}Prompts to try
Example prompts covering event creation, availability checking, search, and invitation management.
- "What meetings do I have tomorrow?"
- "Am I free this Friday between 2pm and 5pm?"
- "Schedule a 1-hour team standup every Monday at 9am and add a Google Meet link"
- "Add [email protected] and [email protected] to my 3pm meeting today"
- "Find all events with 'interview' in the title from the last month"
- "Decline the invitation to the all-hands meeting on Thursday"Troubleshooting Google Calendar
OAuth redirect URI mismatch error from Google
The redirect URI in your .env (OAUTH_REDIRECT_URI) must exactly match one of the authorized redirect URIs registered in your Google Cloud Console OAuth client. For local development, add http://127.0.0.1:3001/oauth/callback to the authorized list.
mcp-remote cannot connect to the local server
Ensure the bun dev server is running before starting Claude Desktop. Check that PORT in .env matches the port in the mcp-remote URL (default 3000). Set NO_PROXY=127.0.0.1,localhost in the env block so mcp-remote bypasses any system proxy.
Events are created but Google Meet links are not generated
Pass addGoogleMeet: true in the create_event call. Also ensure your Google Workspace or Google account has Google Meet enabled. Personal Gmail accounts support Meet links; if you see an error, confirm the Calendar API scope includes the conferencing permission.
Frequently Asked Questions about Google Calendar
What is Google Calendar?
Google Calendar is a Model Context Protocol (MCP) server that enables management of google calendar events across multiple calendars with natural language support, including searching events, checking availability, creating/updating/deleting events, responding to invitations, and auto-generating google meet lin It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Google Calendar?
Follow the installation instructions on the Google Calendar GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Google Calendar?
Google Calendar works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Google Calendar free to use?
Yes, Google Calendar is open source and available under the MIT License license. You can use it freely in both personal and commercial projects.
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