https://github.com/martinm85/mcp-server-graph-api
Model-context-protocol (MCP) server for the Microsoft Graph API in C#
https://github.com/martinm85/mcp-server-graph-api
claude-3-7-sonnet claude-ai graph-api mcp mcp-server microsoft-graph-api microsoft-graph-sdk
Last synced: 4 months ago
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Model-context-protocol (MCP) server for the Microsoft Graph API in C#
- Host: GitHub
- URL: https://github.com/martinm85/mcp-server-graph-api
- Owner: MartinM85
- License: mit
- Created: 2025-04-14T10:56:06.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2025-04-15T12:13:50.000Z (10 months ago)
- Last Synced: 2025-04-15T13:25:24.190Z (10 months ago)
- Topics: claude-3-7-sonnet, claude-ai, graph-api, mcp, mcp-server, microsoft-graph-api, microsoft-graph-sdk
- Language: C#
- Homepage:
- Size: 7.81 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# MCP Server for the Microsoft Graph Api
Model-context-protocol (MCP) server for the Microsoft Graph API in C#.
## Prerequisites
### Entra ID application
Register a new Entra ID application, add and grant at least the `User.Read.All` application permission and create a new client secret.
You can grant also another permissions, it depends on what you want to ask AI about your tenant through the Microsoft Graph API.
### Claude Desktop app
I'm using the [Claude Desktop app](https://claude.ai/download), but I think you can use any other MCP clients, including GitHub Copilot if they allow to add local MCP server.
## MCP server
Open and build the solution.
### MCP server configuration
Open the `claude_desktop_config.json` file. On Windows, the file should be located in **\%APPDATA%\Claude\\** folder.
Add the MCP Server. Under the `args` section, specify the path to project folder. Don't forget to set the details about the Entra ID application like tenant id, client id and client secret under the `env` section.
By default, Microsoft Graph global service is used. You can change it by modifying the `NATIONAL_CLOUD` environment variable.
Possible values for the `NATIONAL_CLOUD` are:
- **Global**: https://graph.microsoft.com - Microsoft Graph global service
- **US_GOV**: https://graph.microsoft.us - Microsoft Graph for US Government L4
- **US_GOV_DOD**: https://dod-graph.microsoft.us - Microsoft Graph for US Government L5 (DOD)
- **China**: https://microsoftgraph.chinacloudapi.cn - Microsoft Graph China operated by 21Vianet
- **Germany**: https://graph.microsoft.de - Microsoft Graph for Germany
```
{
"mcpServers": {
"graphApi": {
"command": "dotnet",
"args": [
"run",
"--project",
"path/to/folder/with/console_project",
"--no-build"
],
"env": {
"TENANT_ID": "",
"CLIENT_ID": "",
"CLIENT_SECRET": "",
"NATIONAL_CLOUD": "Global"
}
}
}
}
```
## Run MCP server
When you open Claude Desktop app, the MCP server should be automatically discovered and run. You can start new chat.
If Claude Desktop app was already open, you need to close (quit it in system tray) and reopen it.
In case of any issues, you can check logs in **\%APPDATA%\Claude\\logs**.
## MCP Client
The MCP client allows you to connect the MCP server.
Tools exposed by the MCP server can be invoked either by Claude AI (via Anthropic Claude API) or by any model deployed to Azure OpenAI Service.
You need to set the Anthropic API key in the `AnthropicService.GetAnthropicApiKey()` method.
```
private static string GetAnthropicApiKey()
{
return "";
}
```
For Azure OpenAI Service, you need to
- **API key**: set either the `AZURE_OPENAI_API_KEY` environment variable or specify the key in the `AzureOpenAIServiceGetOpenAIApiKey()` method
- **Azure OpenAI endpoint**: set either the `AZURE_OPENAI_ENDPOINT` environment variable or specify the endpoint in the `AzureOpenAIService.GetOpenAIEndpoint()` method