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

Related MCP server: Microsoft Graph MCP Server

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:

Claude Code CLI

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

Authentication

⚠️ You must authenticate before using tools.

1. 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

2. 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:

Server Options

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

Environment variables:

• READ_ONLY=true|1: Alternative to --read-only flag

• LOG_LEVEL: Set logging level (default: 'info')

• SILENT=true: Disable console output

License

MIT © 2025 Softeria