MySQL MCP Server

An MCP server implementation that integrates with MySQL databases, providing secure database access capabilities for LLMs.

Features

• Read Operations
  • Execute read-only SELECT queries
  • List all database tables
  • Show table structures
  • View schema information
• Write Operations
  • Execute INSERT/UPDATE/DELETE with transaction support
  • Parameterized queries for data safety
  • Returns affected rows and insert IDs
• Security
  • Read-only transaction mode for SELECT queries
  • Query length and result size limits
  • Performance monitoring and logging
  • Automatic transaction handling

Installation

npm install -g @kevinwatt/mysql-mcp

Usage with Dive Desktop

1. Click “+ Add MCP Server” in Dive Desktop
2. Copy and paste this configuration:

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

3. Click “Save” to install the MCP server

Tool Documentation

• mysql_query

  • Execute read-only SELECT queries
  • Inputs:
    • sql (string): SQL SELECT query to execute
  • Limits:
    • Maximum query length: 4096 characters
    • Maximum result rows: 1000
    • Query timeout: 30 seconds

• mysql_execute

  • Execute data modification operations
  • Inputs:
    • sql (string): SQL statement (INSERT/UPDATE/DELETE)
    • params (array, optional): Parameters for the SQL statement
  • Features:
    • Returns affected rows count
    • Returns last insert ID
    • Automatic transaction handling

• list_tables

  • List all tables in current database
  • No inputs required

• describe_table

  • Show table structure
  • Inputs:
    • table (string): Table name to describe

Usage Examples

Ask your LLM to:

"Show me all tables in the database"
"Describe the structure of users table"
"Select all active users from the database"
"Insert a new record into orders table"

Manual Start

If needed, start the server manually:

npx @kevinwatt/mysql-mcp

Requirements

• Node.js 18+
• MySQL Server
• MCP-compatible LLM service

License

MIT

Author

Dewei Yen

Keywords

• mcp
• mysql
• database
• dive
• llm
• ai