ADLS2 Server

A Model Context Protocol (MCP) server implementation for Azure Data Lake Storage Gen2. This service provides a standardized interface for interacting with ADLS2 storage, enabling file operations through MCP tools.

License Python Version uv MCP

Setup 🛠️

Installation 📦

Requires Python 3.13 or higher.

Install the package using uv:

uv pip install adls2-mcp-server

MCP Configuration ⚙️

Claude Desktop Configuration

1 - Edit Claude Desktop Configuration:

Open claude_desktop_config.json and add the following configuration.

On MacOs, the file is located here: ~/Library/Application Support/Claude Desktop/claude_desktop_config.json.

On Windows, the file is located here: %APPDATA%\Claude Desktop\claude_desktop_config.json.

{
    "mcpServers": {
        "adls2": {
            "command": "adls2-mcp-server",
            "env": {
                "LOG_LEVEL": "DEBUG",
                "UPLOAD_ROOT": "/path/to/store/uploads",
                "DOWNLOAD_ROOT": "/path/to/store/downloads",
                "AZURE_STORAGE_ACCOUNT_NAME": "your-azure-adls2-storage-account-name",
                "READ_ONLY_MODE": "false"
            }
        }
    }
}

The following is a table of available environment configuration variables:

Variable	Description	Default
LOG_LEVEL	Logging level	INFO
UPLOAD_ROOT	Root directory for file uploads	./uploads
DOWNLOAD_ROOT	Root directory for file downloads	./downloads
AZURE_STORAGE_ACCOUNT_NAME	Azure ADLS2 storage account name	None
AZURE_STORAGE_ACCOUNT_KEY	Azure ADLS2 storage account key (optional)	None
READ_ONLY_MODE	Whether the server should operate in read-only mode	true

If AZURE_STORAGE_ACCOUNT_KEY is not set, the server will attempt to authenticate using Azure CLI credentials. Ensure you have logged in with Azure CLI before running the server:

az login

2 - Restart Claude Desktop.

Available Tools 🔧

Filesystem (container) Operations

• list_filesystems - List all filesystems in the storage account
• create_filesystem - Create a new filesystem
• delete_filesystem - Delete an existing filesystem

File Operations

• upload_file - Upload a file to ADLS2
• download_file - Download a file from ADLS2
• file_exists - Check if a file exists
• rename_file - Rename/move a file
• get_file_properties - Get file properties
• get_file_metadata - Get file metadata
• set_file_metadata - Set file metadata
• set_file_metadata_json - Set multiple metadata key-value pairs using JSON

Directory Operations

• create_directory - Create a new directory
• delete_directory - Delete a directory
• rename_directory - Rename/move a directory
• directory_exists - Check if a directory exists
• directory_get_paths - Get all paths under the specified directory

Development 💻

Local Development Setup

1 - Clone the repository:

git clone https://github.com/erikhoward/adls2-mcp-server.git
cd adls2-mcp-server

2 - Create and activate virtual environment:

Linux/macOS:

python -m venv .venv
source .venv/bin/activate

Windows:

.venv\Scripts\activate

3 - Install dependencies:

pip install -e ".[dev]"

4 - Copy and configure environment variables:

cp .env.example .env

Edit .env with your settings.

AZURE_STORAGE_ACCOUNT_NAME=your_azure_adls2_storage_account_name
AZURE_STORAGE_ACCOUNT_KEY=your_azure_adls2_storage_key (optional)
DOWNLOAD_ROOT=/path/to/download/folder
UPLOAD_ROOT=/path/to/upload/folder
READ_ONLY_MODE=True
LOG_LEVEL=INFO

If AZURE_STORAGE_ACCOUNT_KEY is not set, the server will attempt to authenticate using Azure CLI credentials. Ensure you have logged in with Azure CLI before running the server:

az login

5 - Claude Desktop Configuration

Open claude_desktop_config.json and add the following configuration.

On MacOs, the file is located here: ~/Library/Application Support/Claude Desktop/claude_desktop_config.json.

On Windows, the file is located here: %APPDATA%\Claude Desktop\claude_desktop_config.json.

{
    "mcpServers": {
        "adls2": {
            "command": "uv",
            "args": [
                "--directory",
                "/path/to/adls2-mcp-server/repo",
                "run",
                "adls2-mcp-server"
            ],
            "env": {
                "LOG_LEVEL": "DEBUG",
                "UPLOAD_ROOT": "/path/to/store/uploads",
                "DOWNLOAD_ROOT": "/path/to/store/downloads",
                "AZURE_STORAGE_ACCOUNT_NAME": "your-azure-adls2-storage-account-name",
                "READ_ONLY_MODE": "false"
            }
        }
    }
}

6 - Restart Claude Desktop.

Contributions 🤝

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m '✨ Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

License ⚖️

Licensed under MIT - see LICENSE.md file.

This is not an official Microsoft product.