MSSQL Database Manager MCP server

MSSQL MCP Server enables secure and structured interaction with Microsoft SQL Server databases, allowing AI assistants to safely explore and query databases with controlled access. It provides table listing capabilities, data retrieval functions, and ensures strict permission enforcement along with comprehensive logging of all database interactions.

Installation

Install the server using pip:

pip install mssql-mcp-server

Configuration

Configure the database connection by setting the following environment variables:

MSSQL_DRIVER=mssql_driver
MSSQL_HOST=localhost
MSSQL_USER=your_username
MSSQL_PASSWORD=your_password
MSSQL_DATABASE=your_database
#optional
TrustServerCertificate=yes
Trusted_Connection=no

Usage Options

Using with Claude Desktop

To integrate with Claude Desktop, add this configuration to your claude_desktop_config.json file:

{
  "mcpServers": {
    "mssql": {
      "command": "uv",
      "args": [
        "--directory",
        "path/to/mssql_mcp_server",
        "run",
        "mssql_mcp_server"
      ],
      "env": {
        "MSSQL_DRIVER": "mssql_driver",
        "MSSQL_HOST": "localhost",
        "MSSQL_USER": "your_username",
        "MSSQL_PASSWORD": "your_password",
        "MSSQL_DATABASE": "your_database"
      }
    }
  }
}

Running as a Standalone Server

You can also run the server directly:

# Install dependencies
pip install -r requirements.txt

# Run the server
python -m mssql_mcp_server

Security Considerations

For a secure setup:

• Use a dedicated MSSQL user with minimal privileges
• Never use root credentials or administrative accounts
• Restrict database access to only necessary operations
• Enable logging and auditing for security monitoring
• Regularly review permissions to ensure least privilege access

Security Best Practices

1. Create a dedicated MSSQL user with restricted permissions
2. Avoid hardcoding credentials—use environment variables instead
3. Restrict access to necessary tables and operations only
4. Enable SQL Server logging and monitoring for auditing
5. Review database access regularly to prevent unauthorized access

⚠️ IMPORTANT: Always follow the Principle of Least Privilege when configuring database access.

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 "mssql" '{"command":"uv","args":["--directory","path/to/mssql_mcp_server","run","mssql_mcp_server"],"env":{"MSSQL_DRIVER":"mssql_driver","MSSQL_HOST":"localhost","MSSQL_USER":"your_username","MSSQL_PASSWORD":"your_password","MSSQL_DATABASE":"your_database"}}'

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": {
        "mssql": {
            "command": "uv",
            "args": [
                "--directory",
                "path/to/mssql_mcp_server",
                "run",
                "mssql_mcp_server"
            ],
            "env": {
                "MSSQL_DRIVER": "mssql_driver",
                "MSSQL_HOST": "localhost",
                "MSSQL_USER": "your_username",
                "MSSQL_PASSWORD": "your_password",
                "MSSQL_DATABASE": "your_database"
            }
        }
    }
}

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": {
        "mssql": {
            "command": "uv",
            "args": [
                "--directory",
                "path/to/mssql_mcp_server",
                "run",
                "mssql_mcp_server"
            ],
            "env": {
                "MSSQL_DRIVER": "mssql_driver",
                "MSSQL_HOST": "localhost",
                "MSSQL_USER": "your_username",
                "MSSQL_PASSWORD": "your_password",
                "MSSQL_DATABASE": "your_database"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect