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Outlook Assistant

Outlook Assistant is an MCP server that adds messaging tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Microsoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management. It has 39 GitHub stars, is released under the MIT license and runs locally with npx -y @littlebearapps/outlook-assistant.

github.com/littlebearapps/outlook-assistant (opens in a new tab)

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Install Outlook Assistant

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "outlook-assistant": {
      "command": "npx",
      "args": [
        "-y",
        "@littlebearapps/outlook-assistant"
      ],
      "env": {
        "OUTLOOK_CLIENT_SECRET": "your-value"
      }
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --env OUTLOOK_CLIENT_SECRET=your-value --transport stdio outlook-assistant -- npx -y @littlebearapps/outlook-assistant

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "outlook-assistant": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@littlebearapps/outlook-assistant"
      ],
      "env": {
        "OUTLOOK_CLIENT_SECRET": "your-value"
      }
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "inputs": [
    {
      "type": "promptString",
      "id": "outlook_client_secret",
      "description": "OUTLOOK_CLIENT_SECRET",
      "password": true
    }
  ],
  "servers": {
    "outlook-assistant": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@littlebearapps/outlook-assistant"
      ],
      "env": {
        "OUTLOOK_CLIENT_SECRET": "${input:outlook_client_secret}"
      }
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

Environment variables

Variables the server reads at startup.

NameRequiredDescription
OUTLOOK_CLIENT_IDNoAzure AD application (client) ID. Optional: if it is not set here, supply it at sign-in with the auth tool (action=authenticate clientId=)
OUTLOOK_CLIENT_SECRETsecretNoAzure AD application client secret value. Only needed for the browser sign-in flow; the default device-code flow doesn't use it

About Outlook Assistant

MCP server for Outlook email, calendar, and contacts — let your AI assistant manage your inbox directly from the conversation.

  • ai
  • ai-agents
  • calendar
  • claude
  • claude-code
  • contacts
  • cursor
  • email
  • llm
  • mcp

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FAQ

Outlook Assistant FAQ

Still curious? Email info@appsgit.com.

What is Outlook Assistant?

Outlook Assistant is an MCP server that adds messaging tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Microsoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management. It has 39 GitHub stars, is released under the MIT license and runs locally with npx -y @littlebearapps/outlook-assistant. The source code is at github.com/littlebearapps/outlook-assistant.

How do I install the Outlook Assistant MCP server?

Add the command npx -y @littlebearapps/outlook-assistant to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is Outlook Assistant free?

The server is open source under the MIT license, so running it is free. It needs credentials (OUTLOOK_CLIENT_SECRET) for the service it connects to, which may require a paid account.

Is Outlook Assistant actively maintained?

The most recent commit was on Oct 5, 2026. The latest release is v3.14.1, published Oct 5, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.