Ms 365 Mcp Server

ms-365-mcp-server

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

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).

CLI Options

The following options can be used when running ms-365-mcp-server directly from the command line:

--login           Login using device code flow
--logout          Log out and clear saved credentials
--verify-login    Verify login without starting the server

Server Options

When running as an MCP server, the following options can be used:

-v                Enable verbose logging
--read-only       Start server in read-only mode, disabling write operations

Environment variables:

READ_ONLY=true|1: Alternative to --read-only flag
LOG_LEVEL: Set logging level (default: ‘info’)
SILENT=true: Disable console output
MS365_MCP_CLIENT_ID: Custom Azure app client ID (defaults to built-in app)
MS365_MCP_TENANT_ID: Custom tenant ID (defaults to ‘common’ for multi-tenant)

Support

If you’re having problems or need help:

Create an issue
Start a discussion
Email: [email protected]
Discord: https://discord.gg/WvGVNScrAZ or @eirikb