How do I install Microsoft 365 Calendar?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is Microsoft 365 Calendar official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 50 (Fair). The formula is published on the methodology page.

MCPpedia

Microsoft 365 Calendar MCP Server | MCPpedia

Microsoft 365 Calendar MCP Server

Name: Microsoft 365 Calendar MCP Server
Author: mindstone

Microsoft 365 Outlook calendar via Graph: list, get, create, update, respond, free/busy.

Tools Versions Alternatives

Registrymindstone

50Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mindstone-microsoft-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-microsoft-calendar@0.2.0"
      ],
      "env": {
        "MS_CLIENT_ID": "",
        "MS_CONFIG_DIR": "",
        "MS_ACCOUNT_EMAIL": "",
        "MS_MCP_PACKAGE_ID": "Microsoft365Calendar",
        "MICROSOFT_REQUEST_TIMEOUT_MS": "60000"
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
MS_CLIENT_ID	Yes	Microsoft Entra (Azure AD) application client ID
MS_CONFIG_DIR	Yes	Path to the per-user Microsoft config directory (credentials/, accounts.json)
MS_ACCOUNT_EMAIL	No	Account email when running in multi-account per-instance mode (falls back to the first account in accounts.json)
MS_MCP_PACKAGE_ID	No	Logical package ID surfaced in error responses
MICROSOFT_REQUEST_TIMEOUT_MS	No	Override the upstream Microsoft Graph request timeout in milliseconds (max 300000 = 5 min)

Microsoft 365 Calendar MCP Server

Install

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