ms-365-mcp-server
Microsoft 365 MCP Server
A Model Context Protocol (MCP) server for interacting with Microsoft 365 and Microsoft Office services through the Graph API.
Supported Clouds
This server supports multiple Microsoft cloud environments:
| Cloud | Description | Auth Endpoint | Graph API Endpoint |
|---|---|---|---|
| Global (default) | International Microsoft 365 | login.microsoftonline.com | graph.microsoft.com |
| China (21Vianet) | Microsoft 365 operated by 21Vianet | login.chinacloudapi.cn | microsoftgraph.chinacloudapi.cn |
Prerequisites
- Node.js >= 20 (recommended)
- Node.js 14+ may work with dependency warnings
Features
- Authentication via Microsoft Authentication Library (MSAL)
- Comprehensive Microsoft 365 service integration
- Read-only mode support for safe operations
- Tool filtering for granular access control
Output Format: JSON vs TOON
The server supports two output formats that can be configured globally:
JSON Format (Default)
Standard JSON output with pretty-printing:
{
"value": [
{
"id": "1",
"displayName": "Alice Johnson",
"mail": "alice@example.com",
"jobTitle": "Software Engineer"
}
]
}





