ms-365-mcp-serverMicrosoft 365 MCP Server

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Reviewed by Daniel Nikulshyn·Updated July 2026

Overview

The Microsoft 365 MCP Server is a Model Context Protocol (MCP) server that enables interaction with Microsoft 365 and Microsoft Office services through the Graph API. It supports multiple Microsoft cloud environments, including global, China (21Vianet), and allows for authentication via the Microsoft Authentication Library (MSAL). The server provides over 200 tools covering most of the Microsoft Graph API surface, with features such as comprehensive Microsoft 365 service integration, read-only mode support, tool filtering for granular access control, and output formats including JSON and TOON. The server can be used for personal account tools, such as email, calendar, and OneDrive files, as well as organization account tools, including Teams, SharePoint sites, and user management.

Key features

Authentication via Microsoft Authentication Library (MSAL)
Comprehensive Microsoft 365 service integration
Read-only mode support
Tool filtering for granular access control
JSON and TOON output formats
Support for 200+ tools covering most of the Microsoft Graph API surface

Pricing

Model: Free
Category: MCP Servers
Rating: No reviews yet

Use cases

Personal Account Management

Use the Microsoft 365 MCP Server to manage personal account tools, such as email, calendar, and OneDrive files, through the Graph API.

Organization Account Management

Use the Microsoft 365 MCP Server to manage organization account tools, including Teams, SharePoint sites, and user management, with the --org-mode flag.

Pros & Cons

Pros

Comprehensive Microsoft 365 service integration
Support for multiple Microsoft cloud environments
Granular access control through tool filtering
Efficient token usage with TOON output format

Cons

Requires Node.js >= 20 (recommended)
Complexity of setting up and configuring the server

Reviews

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Q&A

Can I limit the tools that are available to a user or application?

Yes, the server includes tool filtering, allowing administrators to define granular access controls or presets that expose only selected Graph API tools, reducing token usage and surface area.

Asked by Chioma Nwosu · Mar 12, 2026

What are the system prerequisites to run the server?

You need Node.js version 20 or newer (Node 14 may work but can trigger dependency warnings); the server is distributed as an npm package and runs on any platform that supports that Node version.

Asked by Damian Wysocki · Feb 8, 2026

How do I authenticate requests to the MCP server?

Authentication is handled via the Microsoft Authentication Library (MSAL), which obtains tokens for the Graph API on behalf of personal or organizational accounts.

Asked by Adaeze Uche · Jan 4, 2026

What environments does the Microsoft 365 MCP Server support for connecting to Graph API?

It works with multiple Microsoft cloud environments, including the global Microsoft 365 cloud (login.microsoftonline.com / graph.microsoft.com) and the China 21Vianet cloud (login.chinacloudapi.cn / microsoftgraph.chinacloudapi.cn).

Asked by Celeste Marchetti · Jan 3, 2026