designcomputer/mysql_mcp_server

What it solves

This project provides a secure, structured interface for AI applications (like Claude Desktop or Claude Code) to interact with MySQL databases. It prevents the AI from having unrestricted, unsafe access to your data by providing a controlled set of tools and prompts for database exploration and analysis.

How it works

It implements the Model Context Protocol (MCP), allowing AI clients to communicate with the server via either standard input/output (STDIO) or Streamable HTTP (SSE). The server connects to MySQL using environment variables for configuration and offers three primary tools:

• execute_sql: Runs standard SQL queries (SELECT, SHOW, DESCRIBE, and DML operations).
• get_schema_info: Retrieves detailed metadata about columns, types, and constraints for specific tables.
• get_table_sample: Fetches a small, representative sample of data to help the AI understand the table content.

It also includes pre-defined prompts for common workflows, such as systematically exploring a database or performing a deep-dive analysis of a specific table.

Who it’s for

Developers and data analysts who want to enable their AI agents to query and analyze MySQL databases securely without writing custom integration code for every project.

Highlights

• Secure Connectivity: Supports SSL/TLS and SSH tunneling for remote database access.
• Multi-Database Mode: Can operate across multiple databases using database.table notation if a specific database is not configured.
• Flexible Transport: Supports both local (STDIO) and remote (SSE) deployment modes.
• SQL Injection Prevention: Uses strict identifier validation for table and database names.
• Guided Workflows: Includes built-in MCP prompts for database exploration and table analysis.