MySQL Database Tools MCP server

This MCP server enables Claude AI to directly interact with MySQL databases, allowing you to query data, execute SQL statements, and get information about database structure - all through natural language conversations with Claude.

Installation

Using Smithery (Recommended)

Install Database Tools for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @elber-code/database-tools --client claude

Manual Installation

If you prefer to install manually:

1. Clone or download the repository:

   git clone [repository-url]
   

2. Install dependencies:

   npm install
   

Configuration

To enable Claude to use this tool, you need to update your Claude Desktop configuration file.

The file is typically located at:

C:\Users\YOUR_USER\AppData\Roaming\Claude\claude_desktop_config.json

Add the following configuration to the mcpServers section:

{
  "mcpServers": {
    "database-tools": {
      "command": "node",
      "args": [
        "C:\\path\\to\\index.js"
      ]
    }
  }
}

Be sure to replace C:\\path\\to\\index.js with the actual path to the index.js file on your system.

Usage Examples

Once the tool is configured, you can interact with your MySQL databases directly from Claude using natural language.

Basic Database Operations

• List all databases: "Execute query in MySQL to show me the databases."

• View tables in a database: "Execute query in MySQL to show me the table users."

• Check table size: "Execute query in MySQL to show me the size of the table products."

Custom SQL Queries

You can execute any valid SQL query by asking Claude:

"Execute query in MySQL: 'SELECT * FROM users WHERE active = 1 ORDER BY last_login DESC LIMIT 10'"

Or more naturally:

"Show me the 10 most recently active users in the database."

Security Considerations

This tool operates with the MySQL credentials configured in the mysql.js file. For security:

• Use a database user with minimal necessary permissions
• Never use root credentials
• Consider read-only access if you don't need to modify data
• Ensure your MySQL server is properly secured

Troubleshooting

If you encounter connection issues:

• Verify MySQL is running and accessible
• Check that the credentials in mysql.js are correct
• Ensure the path in the Claude configuration file points to the correct location
• Look for error messages in Claude's responses for specific database errors

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "database-tools" '{"command":"node","args":["C:\\path\\to\\index.js"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "database-tools": {
            "command": "node",
            "args": [
                "C:\\path\\to\\index.js"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "database-tools": {
            "command": "node",
            "args": [
                "C:\\path\\to\\index.js"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect