MinIO Model-Context Protocol (MCP)

This project implements a Model-Context Protocol (MCP) server and client for MinIO object storage. It provides a standardized way to interact with MinIO.

Features

Server

Resources

Exposes MinIO data through Resources. The server can access and provide:

• Text files (automatically detected based on file extension)
• Binary files (handled as application/octet-stream)
• Bucket contents (up to 1000 objects per bucket)

Tools

• ListBuckets

  • Returns a list of all buckets owned by the authenticated sender of the request
  • Optional parameters: start_after (pagination), max_buckets (limit results)

• ListObjects

  • Returns some or all (up to 1,000) of the objects in a bucket with each request
  • Required parameter: bucket_name
  • Optional parameters: prefix (filter by prefix), max_keys (limit results)

• GetObject

  • Retrieves an object from MinIO
  • Required parameters: bucket_name, object_name

• PutObject

  • Uploads a file to MinIO bucket using fput method
  • Required parameters: bucket_name, object_name, file_path

Client

The project includes multiple client implementations:

1. Basic Client - Simple client for direct interaction with the MinIO MCP server
2. Anthropic Client - Integration with Anthropic’s Claude models for AI-powered interactions with MinIO

Installation

1. Clone the repository:

git clone https://github.com/yourusername/minio-mcp.git
cd minio-mcp

2. Install dependencies using pip:

pip install -r requirements.txt

Or using uv:

uv pip install -r requirements.txt

Environment Configuration

Create a .env file in the root directory with the following configuration:

# MinIO Configuration
MINIO_ENDPOINT=play.min.io
MINIO_ACCESS_KEY=your_access_key
MINIO_SECRET_KEY=your_secret_key
MINIO_SECURE=true
MINIO_MAX_BUCKETS=5

# Server Configuration
SERVER_HOST=0.0.0.0
SERVER_PORT=8000

# For Anthropic Client (if using)
ANTHROPIC_API_KEY=your_anthropic_api_key

Usage

Running the Server

The server can be run directly:

python src/minio_mcp_server/server.py

Using the Basic Client

from src.client import main
import asyncio

asyncio.run(main())

Using the Anthropic Client

1. Configure the servers in src/client/servers_config.json:

{
  "mcpServers": {
    "minio_service": {
      "command": "python",
      "args": ["path/to/minio_mcp_server/server.py"]
    }
  }
}

2. Run the client:

python src/client/mcp_anthropic_client.py

3. Interact with the assistant:

   • The assistant will automatically detect available tools
   • You can ask questions about your MinIO data
   • The assistant will use the appropriate tools to retrieve information

4. Exit the session:

   • Type quit or exit to end the session

Integration with Claude Desktop

You can integrate this MCP server with Claude Desktop: