Outlook MCP (Model Context Protocol) Server

Name: Outlook MCP (Model Context Protocol) Server
Author: kacase

@kacase

Repository

About Outlook MCP (Model Context Protocol) Server

An MCP Server for Microsoft Outlook using GraphAPI

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "outlook": {
      "command": "npx",
      "args": [
        "mcp_outlook"
      ],
      "env": {
        "AUTHORITY": "your-authority-id",
        "CLIENT_ID": "your-client-id",
        "MCP_SERVER_NAME": "outlook-mcp",
        "MCP_SERVER_VERSION": "1.0.0"
      }
    }
  }
}

Tools

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Overview

What is Outlook MCP (Model Context Protocol) Server?

A Model Context Protocol server that integrates with Microsoft Outlook through Microsoft Graph API, allowing Claude and other LLMs to check calendar events, schedule new ones, read emails, and send messages.

How to use Outlook MCP (Model Context Protocol) Server?

Install via npx and configure the server in your Claude Desktop config with your Azure App registration details. Set the environment variables AUTHORITY (Tenant ID), CLIENT_ID, MCP_SERVER_NAME, and MCP_SERVER_VERSION. Run npx mcp_outlook or point to a local build.

Key features of Outlook MCP (Model Context Protocol) Server

Calendar event CRUD operations (list, create, get, update, delete)
Email CRUD operations (list, get, send, draft, mark read/unread, delete)
People search and retrieval within the organization
Full TypeScript implementation with Zod validation
Complies with Model Context Protocol for LLM tool integration

Use cases of Outlook MCP (Model Context Protocol) Server

Have an LLM check your upcoming calendar events and suggest meeting times
Automate sending emails or drafting replies via natural language instructions
Manage email inbox: mark as read, delete, or move messages
Search for a colleague’s contact details and schedule a meeting with them

FAQ from Outlook MCP (Model Context Protocol) Server

What prerequisites are needed?

Node.js 18+, a Microsoft 365 account, and an Azure App Registration with Graph API delegated permissions for Calendar and Mail.

What Graph API permissions are required?

For Calendar: Calendars.Read and Calendars.ReadWrite. For Email: Mail.Read, Mail.ReadWrite, and Mail.Send. For People: People.Read.

How do I set up the Azure App Registration?

Go to Azure Portal, create a new App Registration, add http://localhost as a redirect URI (Public client/native), and note the Client ID and Tenant ID.