Outlook MCP (Model Context Protocol) Server

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.

Does the server run locally or via npx?

You can run it directly via npx mcp_outlook or by pointing Claude Desktop to a local build using node with the absolute path to build/index.js.

What data does it access?

It accesses your Microsoft 365 calendar events, emails, and people contacts on your behalf using delegated permissions.