Add the Google Calendar (Workspace MCP) MCP server to Claude Code

Config last verified Jun 1, 2026

The exact config to run Google Calendar (Workspace MCP) in Claude Code — paste it in, restart, and the tools load.

Prerequisites

Claude Code installed.
GOOGLE_OAUTH_CLIENT_ID — OAuth client ID from your Google Cloud project.
GOOGLE_OAUTH_CLIENT_SECRET — OAuth client secret for the Google Cloud OAuth client.

Setup

1. Open `~/.claude.json`

2. Add this configuration

Add to ~/.claude.json

~/.claude.json

json

{
  "mcpServers": {
    "google-calendar": {
      "command": "uvx",
      "args": [
        "workspace-mcp",
        "--tools",
        "calendar"
      ],
      "env": {
        "GOOGLE_OAUTH_CLIENT_ID": "<GOOGLE_OAUTH_CLIENT_ID>",
        "GOOGLE_OAUTH_CLIENT_SECRET": "<GOOGLE_OAUTH_CLIENT_SECRET>"
      }
    }
  }
}

Or via CLI

bash

claude mcp add google-calendar -- uvx workspace-mcp --tools calendar

3. Restart Claude Code and confirm the Google Calendar (Workspace MCP) tools load.

Gotchas

Claude Code stores MCP servers under an "mcpServers" object in ~/.claude.json. It also reads a project-scoped .mcp.json and supports adding servers from the command line with "claude mcp add". Each entry must declare either a "type" or a "command"; Claude Code refuses an entry that has neither. Remote servers connect natively over Streamable HTTP with OAuth.

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