mysql_mcp_server

The MySQL MCP Server provides a controlled MCP interface to interact with a MySQL database. It exposes resources representing tables, allows reading table contents, and supports executing SQL queries with proper error handling. Access is secured via environment variables that specify host, port, and credentials, enabling AI applications to explore and analyze the database in a structured and auditable way. When integrated with clients like Claude Desktop or Visual Studio Code via MCP, you can enumerate available tables, request row data, and run parameterized queries, all while benefiting from centralized logging and error handling. You can debug and test the MCP interactions using the MCP Inspector during development, which helps validate command/response flows without needing to run the server as a standalone Python process.

In practice, you’ll configure a client to connect to the MCP server through the provided environment variables and then use the MCP protocol to perform operations such as listing tables, reading data, and executing SQL statements. The server focuses on safe access and clarity of operations, making it suitable for AI-assisted data exploration and analysis workflows.

Prerequisites:

• Python 3.8+ installed on your system
• Access to a MySQL instance and corresponding credentials
• Optional: virtual environment tooling (venv)

Install the MySQL MCP Server package:

pip install mysql-mcp-server

(Optionally) Set up a development environment and run tests:

# Clone the repository
git clone https://github.com/designcomputer/mysql_mcp_server.git
cd mysql_mcp_server

# Create and activate a virtual environment
python -m venv venv
source venv/bin/activate  # on Windows use `venv\Scripts\activate`

# Install development dependencies
pip install -r requirements-dev.txt

# Run tests
pytest

Running the server in development (as module):

python -m mysql_mcp_server

To integrate with clients like Claude Desktop or VS Code, configure the MCP client according to the mcp_config example (see README for host/credential details).

Security: Never commit real credentials. Use a dedicated MySQL user with least privilege and enable logging of operations. Environment variables should be supplied by your deployment environment or a secure vault. If you plan to expose the MCP server to untrusted clients, consider implementing additional access controls and request validation. The server is designed to be used as a protocol implementation rather than a standalone executable, so prefer using MCP tooling and inspectors during development and debugging. If you encounter connection issues, verify that MYSQL_HOST, MYSQL_PORT, and network access allow the server to reach the MySQL instance, and ensure the provided credentials have the necessary permissions on the target database.