Use This MCP server To

Manage Microsoft 365 calendar events via MCP Perform Excel file operations through MCP Access and manage OneDrive files in real time Send and receive emails using MCP server Manage To Do tasks and task lists Interact with OneNote notebooks and pages Handle Planner plans and tasks Manage Outlook contacts dynamically Authenticate Microsoft 365 users via MSAL Integrate Microsoft 365 user management into workflows

README

ms-365-mcp-server

npm version

Microsoft 365 MCP Server

A Model Context Protocol (MCP) server for interacting with Microsoft 365 services through the Graph API.

Prerequisites

Node.js >= 14

Features

Authentication via Microsoft Authentication Library (MSAL)
Excel file operations
Calendar event management
Mail operations
OneDrive file management
OneNote notebooks and pages
To Do tasks and task lists
Planner plans and tasks
Outlook contacts
User management
Dynamic tools powered by Microsoft Graph OpenAPI spec
Built on the Model Context Protocol

Quick Start Example

Test login in Claude Desktop:

Examples

Integration

Claude Desktop

To add this MCP server to Claude Desktop:

Edit the config file under Settings > Developer:

{
  "mcpServers": {
    "ms365": {
      "command": "npx",
      "args": [
        "-y",
        "@softeria/ms-365-mcp-server"
      ]
    }
  }
}

Claude Code CLI

claude mcp add ms365 -- npx -y @softeria/ms-365-mcp-server

For other interfaces that support MCPs, please refer to their respective documentation for the correct integration method.

Authentication

⚠️ You must authenticate before using tools.

MCP client login:
- Call the login tool (auto-checks existing token)
- If needed, get URL+code, visit in browser
- Use verify-login tool to confirm
Optional CLI login:
```
npx @softeria/ms-365-mcp-server --login
```
Follow the URL and code prompt in the terminal.

Tokens are cached securely in your OS credential store (fallback to file).

License

ms-365-mcp-server FAQ

How does ms-365-mcp-server authenticate users?

It uses Microsoft Authentication Library (MSAL) for secure OAuth2 authentication with Microsoft 365 services.

What Microsoft 365 services can I access with this MCP server?

You can access Excel, Calendar, Mail, OneDrive, OneNote, To Do, Planner, Outlook contacts, and user management.

Does ms-365-mcp-server support dynamic tool generation?

Yes, it dynamically generates tools based on the Microsoft Graph OpenAPI specification.

What are the prerequisites for running ms-365-mcp-server?

Node.js version 14 or higher is required to run the server.

Can this MCP server manage Outlook contacts?

Yes, it supports managing Outlook contacts through the Microsoft Graph API.

Is ms-365-mcp-server open source?

Yes, it is open source and licensed under the MIT license.

How does ms-365-mcp-server handle file management?

It supports OneDrive file operations, enabling file access and management via MCP.

Can I manage Planner tasks with this server?

Yes, Planner plans and tasks are accessible and manageable through this MCP server.