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MCP MySQL Server Implementation
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MCP MySQL Server Implementation

A MySQL database MCP server based on NodeJS, allowing LLMs to inspect database schemas and execute SQL queries, supporting multi - database mode and fine - grained permission control.
DatabaseDeveloper tools#MySQL Connection#Database Query#Permission Management#Multi - Database.TypeScript
2 points
10.5K
Open Site

Overview

Installation

Content Details

Alternatives

What is the MySQL MCP Server?

The MySQL MCP Server is a tool that allows Large Language Models (LLMs) to access and operate MySQL databases. It provides functions such as database schema viewing, SQL query execution, and data writing (e.g., insert, update, delete).

How to use the MySQL MCP Server?

By configuring environment variables and running commands, you can quickly set up the server and connect it to your database. It supports integration with various development tools and platforms, such as Cursor, Claude Desktop, and Smithery.

Applicable Scenarios

Suitable for developers, data scientists, and enterprise users who need to let AI directly interact with MySQL databases. It supports complex queries, multi - database management, and fine - grained permission control.

Main Features

SQL Query Execution
Supports complex SQL queries and returns result sets.
Database Schema Viewing
Automatically generates table structures and column information for easy understanding of the database architecture.
Data Writing Support
Allows execution of INSERT, UPDATE, and DELETE operations. Permissions need to be manually enabled.
Multi - Database Support
Allows connection to multiple databases without specifying a specific database.
Advantages
Simplify the interaction process between AI and the database
Support multiple query security protection mechanisms
Be compatible with mainstream development tools and platforms
Limitations
Have a certain impact on database performance
Require appropriate MySQL permission configuration

How to Use

Install Dependencies
Ensure that Node.js v18 or a higher version is installed.
Configure Environment Variables
Set MySQL connection information, such as host, port, username, and password.
Start the Server
Run the server to connect to the database.

Usage Examples

Example 1: Execute a Query
Query all records in the user table.
Example 2: Insert a New Record
Insert a new order into the order table.

Frequently Asked Questions

How to enable write operation permissions?
How to solve the problem of connection failure?
How to monitor query performance?

Related Resources

Official Documentation
Comprehensively understand the server functions and configuration methods.
GitHub Repository
Source code address and contribution guidelines.
Tutorial Video
Quick - start video tutorial.

Installation

Copy the following command to your Client for configuration
{
  "mcpServers": {
    "MySQL": {
      "command": "npx",
      "args": [
        "mcprunner",
        "MYSQL_HOST=127.0.0.1",
        "MYSQL_PORT=3306",
        "MYSQL_USER=root",
        "MYSQL_PASS=root",
        "MYSQL_DB=demostore",
        "ALLOW_INSERT_OPERATION=true",
        "ALLOW_UPDATE_OPERATION=true",
        "ALLOW_DELETE_OPERATION=false",
        "--",
        "npx",
        "-y",
        "@benborla29/mcp-server-mysql"
      ]
    }
  }
}

{
  "mcpServers": {
    "mcp_server_mysql": {
      "command": "/path/to/npx/binary/npx",
      "args": [
        "-y",
        "@benborla29/mcp-server-mysql"
      ],
      "env": {
        // Basic connection settings
        "MYSQL_HOST": "127.0.0.1",
        "MYSQL_PORT": "3306",
        "MYSQL_USER": "root",
        "MYSQL_PASS": "",
        "MYSQL_DB": "db_name",
        "PATH": "/path/to/node/bin:/usr/bin:/bin",
        
        // Performance settings
        "MYSQL_POOL_SIZE": "10",
        "MYSQL_QUERY_TIMEOUT": "30000",
        "MYSQL_CACHE_TTL": "60000",
        
        // Security settings
        "MYSQL_RATE_LIMIT": "100",
        "MYSQL_MAX_QUERY_COMPLEXITY": "1000",
        "MYSQL_SSL": "true",
        
        // Monitoring settings
        "MYSQL_ENABLE_LOGGING": "true",
        "MYSQL_LOG_LEVEL": "info",
        "MYSQL_METRICS_ENABLED": "true",
        
        // Write operation flags
        "ALLOW_INSERT_OPERATION": "false",
        "ALLOW_UPDATE_OPERATION": "false",
        "ALLOW_DELETE_OPERATION": "false"
      }
    }
  }
}

{
       "mcpServers": {
         "mcp_server_mysql": {
           "command": "/full/path/to/node",
           "args": [
             "/full/path/to/mcp-server-mysql/dist/index.js"
           ],
           "env": {
             "MYSQL_HOST": "127.0.0.1",
             "MYSQL_PORT": "3306",
             "MYSQL_USER": "root",
             "MYSQL_PASS": "your_password",
             "MYSQL_DB": "your_database"
           }
         }
       }
     }
Note: Your key is sensitive information, do not share it with anyone.

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