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MCP server that gives Claude and other LLMs access to MySQL — inspect schemas, run queries, and optionally write data, all through the Model Context Protocol.

• Read-only by default — write operations opt-in via env flags
• Claude Code integration — optimized for Anthropic's Claude Code CLI
• SSH tunnel support — built-in support for remote databases
• Multi-DB mode — query across multiple databases without reconnecting
• Schema-specific permissions — per-database read/write control
• PII redaction — automatic masking of sensitive data in results
• Remote mode — HTTP transport with bearer token auth
• SSL/TLS support — encrypted connections with mTLS option

• Node.js v20+
• MySQL 5.7+ (8.0+ recommended)
• MySQL user with appropriate privileges

Claude Code (simplest):

claude mcp add mcp_server_mysql \
  -e MYSQL_HOST="127.0.0.1" \
  -e MYSQL_PORT="3306" \
  -e MYSQL_USER="root" \
  -e MYSQL_PASS="your_password" \
  -e MYSQL_DB="your_database" \
  -- npx @benborla29/mcp-server-mysql

Claude Desktop / other clients:

{
  "mcpServers": {
    "mcp_server_mysql": {
      "command": "npx",
      "args": ["-y", "@benborla29/mcp-server-mysql"],
      "env": {
        "MYSQL_HOST": "127.0.0.1",
        "MYSQL_PORT": "3306",
        "MYSQL_USER": "root",
        "MYSQL_PASS": "your_password",
        "MYSQL_DB": "your_database"
      }
    }
  }
}

All write operations are disabled by default. Enable with ALLOW_INSERT_OPERATION=true, ALLOW_UPDATE_OPERATION=true, ALLOW_DELETE_OPERATION=true.

• Installation Guide — Smithery, Cursor, Codex, Claude Code, local repo, remote mode
• Configuration & Environment Variables — all env vars, advanced config
• Multi-DB Mode — querying multiple databases
• PII Redaction — automatic data masking
• Testing — test setup and running
• Troubleshooting — common issues and fixes
• Changelog

Tool: mysql_query Execute SQL queries. Read-only by default. Write operations enabled per flag.

Resources: mysql://tables Lists all tables and column metadata for the connected database.

PRs welcome at github.com/benborla/mcp-server-mysql.

git clone https://github.com/benborla/mcp-server-mysql.git
pnpm install
pnpm run build
pnpm test

MIT — see LICENSE for details.