OneDrive MCP Server

A Model Context Protocol (MCP) server implementation that enables AI agents to search and navigate files and folders in Microsoft OneDrive. Built with Spring Boot and Spring AI.

Features

- 🔍 Search files in OneDrive with optional folder filtering
- 📁 Search and navigate folder structures
- 🔗 Get direct web URLs to files and folders
- 🤖 MCP-compatible interface for AI agent integration
- 🔒 Secure access using Microsoft Graph API

Prerequisites

- Java 21 or higher
- Maven 3.6+
- Docker (optional, for containerized deployment)
- Microsoft OneDrive account and access token

Getting Microsoft OneDrive Access Token

You can obtain the access token in two ways:

Option 1: Using Microsoft Graph Explorer (Quick Method)

1. Visit Microsoft Graph Explorer 2. Sign in with your Microsoft account 3. Go to the "Access token" tab 4. Make sure you have the following permissions enabled: - Files.Read - Files.Read.All 5. Copy the access token from the token field

Note: This token is temporary and will expire after a few hours. It's good for testing but not recommended for production use.

Option 2: Register Your Own Application (Recommended for Production)

1. Register your application in the Microsoft Azure Portal: - Click "New Registration" - Give your application a name - For "Supported account types" select "Accounts in any organizational directory and personal Microsoft accounts" - For "Redirect URI", select "Public client/native (mobile & desktop)" and enter "https://login.microsoftonline.com/common/oauth2/nativeclient" - Click "Register"

2. Note down these values from your registered application:
- Application (client) ID
- Redirect URI

3. Configure API Permissions:
- Go to "API Permissions"
- Click "Add a permission"
- Select "Microsoft Graph"
- Choose "Delegated permissions"
- Add the following permissions:
- Files.Read
- Files.Read.All

4. Get your access token:
- Visit this URL in your browser (replace YOUR_CLIENT_ID):

   https://login.microsoftonline.com/common/oauth2/v2.0/authorize?client_id=YOUR_CLIENT_ID&scope=files.read&response_type=token&redirect_uri=https://login.microsoftonline.com/common/oauth2/nativeclient

   

- Sign in with your Microsoft account
- After authentication, you'll be redirected to a URL containing your access token
- Copy the access token value from the URL parameter access_token=

This token is valid for several hours and needs to be refreshed periodically. For production use, implement proper OAuth2 token refresh flow.

Configuration

1. Set your OneDrive access token:

The application expects the access token to be provided via the MICROSOFT_ONEDRIVE_ACCESS_TOKEN environment variable, which is referenced in application.yaml:

onedrive:

    access-token: ${MICROSOFT_ONEDRIVE_ACCESS_TOKEN}

2. VS Code MCP Configuration:

You can configure the MCP server in VS Code either using the local JAR file or using Docker. Create or update .vscode/mcp.json in your VS Code workspace:

Option 1: Using Local JAR

{
    "servers": {
        "onedrive-mcpserver": {
            "type": "stdio",
            "command": "java",
            "args": [
                "-jar",
                "~/onedrive-mcp-server/target/onedrive-mcp-server-0.0.1.jar"
            ],
            "env": {
                "MICROSOFT_ONEDRIVE_ACCESS_TOKEN": "<INSERT TOKEN HERE>"
            }
        }
    }
}

Option 2: Using Docker

{
    "servers": {
        "onedrive-mcpserver-docker": {
            "type": "stdio",
            "command": "docker",
            "args": [
                "run",
                "--rm",
                "-i",
                "-e",
                "MICROSOFT_ONEDRIVE_ACCESS_TOKEN",
                "karthik20/onedrive-mcp-server:0.0.1"
            ],
            "env": {
                "MICROSOFT_ONEDRIVE_ACCESS_TOKEN": "<INSERT TOKEN HERE>"
            }
        }
    }
}

Replace <INSERT TOKEN HERE> with your Microsoft OneDrive access token. For the local JAR option, make sure to update the jar path to match your local setup.

Building and Running

Local Development

1. Build the project:

mvn clean package

2. Run the server:

java -jar target/onedrive-mcp-server-0.0.1.jar

Docker Deployment

1. Build the Docker image:

mvn spring-boot:build-image

This will create an image named: karthik20/onedrive-mcp-server:0.0.1

2. Run the container:

docker run -p 8080:8080 -e ONEDRIVE_ACCESS_TOKEN=your-token karthik20/onedrive-mcp-server:0.0.1

Testing with MCP Clients

GitHub Copilot

1. Install GitHub Copilot in VS Code
2. Configure your AI settings to use the MCP server:

{

    "mcp.server.url": "http://localhost:8080"

}

Claude Desktop

1. Open Claude Desktop settings
2. Add a new MCP server with URL: http://localhost:8080
3. Use the built-in file browser to access OneDrive files

Available MCP Tools

1. Search Files

Search for files in OneDrive with optional folder filtering:

public String searchFiles(String fileName, String folder)

2. Search Folders

Navigate and search folder structures:

public String searchFolderPath(String folderName)

3. List Folder Contents

List all files and folders under a specific folder path:

public String listFolderContents(String folderPath)

Returns a JSON array of file and folder information including names, web URLs, and paths. The folder path can be nested like 'Documents/Bills'.

Testing

Run the test suite:

mvn test

Built With

- Spring Boot 3.4.4
- Spring AI 1.0.0-M7
- Microsoft Graph API
- JUnit 5 & Mockito

License

This project is licensed under the MIT License - see the LICENSE file for details.