MySQL MCP Server

A Model Context Protocol (MCP) server that enables secure interaction with MySQL databases. This server allows AI assistants to list tables, read data, and execute SQL queries through a controlled interface, making database exploration and analysis safer and more structured.

Features

List available MySQL tables as resources
Read table contents
Execute SQL queries with proper error handling
Secure database access through environment variables
Comprehensive logging

Installation

git clone https://github.com/he426100/mysql-mcp-server
cd mysql-mcp-server
composer install

Configuration

Set the following environment variables:

DB_HOST=localhost     # Database host
DB_PORT=3306         # Optional: Database port (defaults to 3306 if not specified)
DB_USERNAME=your_username
DB_PASSWORD=your_password
DB_DATABASE=your_database

Usage

As a standalone server

# Install dependencies
composer install

# Run the server
php bin/console

docker

docker build -t mysql-mcp-server .
docker run -i --rm mysql-mcp-server --host 127.0.0.1

Security Considerations

Never commit environment variables or credentials
Use a database user with minimal required permissions
Consider implementing query whitelisting for production use
Monitor and log all database operations

Security Best Practices

This MCP server requires database access to function. For security:

Create a dedicated MySQL user with minimal permissions
Never use root credentials or administrative accounts
Restrict database access to only necessary operations
Enable logging for audit purposes
Regular security reviews of database access

See MySQL Security Configuration Guide for detailed instructions on:

Creating a restricted MySQL user
Setting appropriate permissions
Monitoring database access
Security best practices

⚠️ IMPORTANT: Always follow the principle of least privilege when configuring database access.

Credits

mysql_mcp_server .

License

MIT License - see LICENSE file for details.

Contributing

Fork the repository
Create your feature branch (git checkout -b feature/amazing-feature)
Commit your changes (git commit -m 'Add some amazing feature')
Push to the branch (git push origin feature/amazing-feature)
Open a Pull Request