Microsoft SQL MCP Server
by aaaaalexander
A robust SQL Server interface using the Model Context Protocol (MCP) standard, providing AI assistants with a controlled way to interact with SQL databases. This project offers tools for schema exploration, query execution, and data analysis, with safety mechanisms to prevent harmful operations.
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What is Microsoft SQL MCP Server?
This server is a SQL Server interface implementing the Model Context Protocol (MCP), designed to allow AI assistants like Claude to interact with SQL databases in a controlled and secure manner.
How to use Microsoft SQL MCP Server?
The server can be used either with Claude Desktop by configuring the claude_config.json file or in standalone mode by setting up environment variables in a .env file and running the provided batch file. It provides a set of tools accessible via the MCP protocol for schema exploration, query execution, and data analysis.
Key features of Microsoft SQL MCP Server
Secure Database Access with configurable security restrictions
Rich Tool Set for queries, schema exploration, and analysis
Data Visualization Support for exporting and analyzing data in various formats
AI-Ready Interface implementing the Model Context Protocol (MCP)
Optimized Performance with connection pooling and efficiency optimizations
Use cases of Microsoft SQL MCP Server
Integrating SQL Server databases with AI assistants like Claude
Exploring database schemas and understanding database structure
Executing SQL queries and analyzing data
Generating database reports and creating data visualizations from SQL data
FAQ from Microsoft SQL MCP Server
How do I create a dedicated SQL user?
How do I create a dedicated SQL user?
Use the provided SQL script to create a user with read-only permissions and restrict access to necessary schemas.
What are the important configuration notes for Claude Desktop integration?
What are the important configuration notes for Claude Desktop integration?
Use absolute paths for the Python executable and script, use escaped backslashes for Windows network paths, ensure proper SQL Server authentication details, and adjust DB_ALLOWED_SCHEMAS.
How do I run the server in standalone mode?
How do I run the server in standalone mode?
Clone the repository, create and activate a virtual environment, install dependencies, configure the .env file, and run the provided batch file.
What security considerations should I keep in mind?
What security considerations should I keep in mind?
Validate and sanitize SQL queries, use read-only mode, restrict schema access, use connection pooling, create a dedicated SQL user, never run as sa/admin, keep credentials secure, and run behind a firewall.
What do I do if I have connection issues?
What do I do if I have connection issues?
Verify SQL Server is running and accessible, check firewall settings, confirm credentials, ensure the SQL user has appropriate permissions, and verify the ODBC driver is properly installed.