SQL Server MCP (Windows)

io.github.TharanaBopePublished by GitHub account TharanaBopev1.0.4Updated Oct 27, 2026

SQL Server MCP with RAG capabilities for Windows (native ODBC support)

VerifiedSTDIODesktop onlyDatabases Data & Analytics

Server details

Identifier: io.github.TharanaBope/sql-server-mcp
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 16, 2026

Security note

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Overview

AI-generated overview

A local MCP server that lets an AI assistant explore and query Microsoft SQL Server databases on Windows, with schema search and read-only SELECT execution.

What you can do: List and describe databases, tables, views, stored procedures and database statistics
Map foreign key relationships and find tables connected to a given table
Search the schema across tables, columns, views and procedures, and find where a column is used
Run read-only SELECT queries with timeouts and row limits
Cache schema metadata for faster repeat lookups
When to use it: Useful when you work with a SQL Server instance and want an assistant to answer questions about its structure, relationships and contents without writing queries by hand. Best suited to exploration and read-only reporting rather than schema changes.
Requirements: Runs as a local process via npx on Windows, with the native ODBC driver and msnodesqlv8 driver. Needs a reachable SQL Server instance and connection settings supplied as environment variables: SQL_SERVER, SQL_DATABASE, SQL_PORT, SQL_USE_WINDOWS_AUTH, and SQL_USERNAME and SQL_PASSWORD for SQL authentication. Optional settings include QUERY_TIMEOUT, MAX_RESULT_ROWS, ENABLE_SCHEMA_CACHE and CACHE_TTL_MINUTES.

Before you install

SQL_PASSWORD is passed in plain text in the assistant's configuration file, so protect that file. The server is read-only by default, but the README notes write operations can be enabled explicitly, which would let the assistant change data. Query results and schema details are sent to the AI model provider you use.

Installation

In SourceWeft

Open SQL Server MCP (Windows) in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

SQL Server MCP - Cross-Platform Database Integration for AI

[License: MIT] [TypeScript] [MCP] [npm version] [npm downloads]

A Model Context Protocol (MCP) server implementation for SQL Server that enables AI assistants to explore and query SQL Server databases through natural language. Built as a RAG (Retrieval-Augmented Generation) system optimized for database knowledge exploration.

🌟 Features

🔍 Schema Exploration - List databases, tables, views, stored procedures
🔗 Relationship Mapping - Discover foreign key relationships and table dependencies
🔎 Search & Discovery - Global schema search across tables, columns, procedures
⚡ Safe Query Execution - Read-only SELECT queries with automatic timeouts and row limits
🗄️ Schema Caching - Fast retrieval with configurable TTL (default: 60 minutes)
🔐 Security First - Read-only by default, SQL injection prevention, query validation
🖥️ Cross-Platform - Native Windows Authentication & macOS Docker support

🎥 Demo

See SQL Server MCP in action with AI assistant integration:

[SQL Server MCP Demo]

Note: Watch how natural language queries instantly explore database schemas, find relationships, and retrieve data - all without leaving your AI assistant!

🚀 Quick Start

This repository contains two platform-specific implementations:

Windows Version → `sql-server-mcp/`

✅ Windows Authentication (ODBC Driver 17)
✅ SQL Server Authentication
✅ Native msnodesqlv8 driver for optimal performance
📖 Windows Setup Guide

macOS Version → `sql-server-mcp-mac/`

✅ SQL Server Authentication (Docker required)
✅ Pure JavaScript mssql driver (no native dependencies)
📖 macOS Setup Guide

📦 Installation

🎉 Now Available on MCP Registry!

This server is officially published in the Model Context Protocol Registry:

Windows: io.github.TharanaBope/sql-server-mcp
macOS: io.github.TharanaBope/sql-server-mcp-macos

🚀 Quick Start (Recommended)

No installation needed! Just add to your AI assistant's configuration:

Claude Desktop (Windows)

Config Location: %APPDATA%\Claude\claude_desktop_config.json

json

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true"      }    }  }}

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true"      }    }  }}

Claude Desktop (macOS)

Config Location: ~/Library/Application Support/Claude/claude_desktop_config.json

json

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp-macos@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "false",        "SQL_USERNAME": "sa",        "SQL_PASSWORD": "your_password"      }    }  }}

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp-macos@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "false",        "SQL_USERNAME": "sa",        "SQL_PASSWORD": "your_password"      }    }  }}

LM Studio Configuration

Config Location: Varies by platform

Windows: %USERPROFILE%\.lmstudio\config.json
macOS: ~/.lmstudio/config.json

json

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true",        "SQL_USERNAME": "",        "SQL_PASSWORD": ""      }    }  }}

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true",        "SQL_USERNAME": "",        "SQL_PASSWORD": ""      }    }  }}

VS Code with Continue Extension

Config Location: ~/.continue/config.json

json

{  "experimental": {    "modelContextProtocolServers": [      {        "transport": {          "type": "stdio",          "command": "npx",          "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"]        },        "env": {          "SQL_SERVER": "localhost",          "SQL_DATABASE": "master",          "SQL_USE_WINDOWS_AUTH": "true"        }      }    ]  }}

{  "experimental": {    "modelContextProtocolServers": [      {        "transport": {          "type": "stdio",          "command": "npx",          "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"]        },        "env": {          "SQL_SERVER": "localhost",          "SQL_DATABASE": "master",          "SQL_USE_WINDOWS_AUTH": "true"        }      }    ]  }}

Cursor IDE

Config Location: Cursor Settings → Features → Model Context Protocol

json

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true"      }    }  }}

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true"      }    }  }}

Cline (VS Code Extension)

Config Location: VS Code Settings → Cline → MCP Settings

json

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true"      }    }  }}

{  "mcpServers": {    "sql-server": {      "command": "npx",      "args": ["-y", "@tharanabopearachchi/sql-server-mcp@latest"],      "env": {        "SQL_SERVER": "localhost",        "SQL_DATABASE": "master",        "SQL_USE_WINDOWS_AUTH": "true"      }    }  }}

Restart your AI assistant and you're ready to go!

🛠️ Development Setup

For development or local modifications:

Windows

👉 Complete Windows Setup Instructions

macOS

👉 Complete macOS Setup Instructions

🛠️ Available MCP Tools

The server provides 12 powerful tools for database exploration:

Schema Exploration

list_databases - Discover all available databases
list_tables - View tables with row counts
describe_table - Get detailed schema (columns, types, constraints, indexes)
list_views - List all views
list_stored_procedures - List stored procedures with metadata
get_procedure_definition - Get full SQL definition
get_database_overview - High-level statistics

Relationship Mapping

get_table_relationships - Get foreign key relationships (incoming & outgoing)
get_related_tables - Find directly connected tables

Search & Discovery

search_schema - Search across tables, columns, views, procedures
find_column_usage - Find all tables containing a specific column

Query Execution

execute_query - Execute read-only SELECT queries safely

💬 Example Usage

Once configured, you can ask your AI assistant:

"What databases are available on this server?"
"Show me all tables in the Sales database"
"What's the schema of the Orders table?"
"Find all tables that reference the Customers table"
"Search for any columns related to 'email'"
"Execute: SELECT TOP 10 * FROM Products ORDER BY Price DESC"

"What databases are available on this server?"
"Show me all tables in the Sales database"
"What's the schema of the Orders table?"
"Find all tables that reference the Customers table"
"Search for any columns related to 'email'"
"Execute: SELECT TOP 10 * FROM Products ORDER BY Price DESC"

⚙️ Configuration

Both versions use environment variables for configuration:

env

SQL_SERVER=localhostSQL_DATABASE=masterSQL_PORT=1433SQL_USE_WINDOWS_AUTH=true          # Windows onlySQL_USERNAME=                       # For SQL AuthSQL_PASSWORD=                       # For SQL AuthQUERY_TIMEOUT=30MAX_RESULT_ROWS=1000ENABLE_SCHEMA_CACHE=trueCACHE_TTL_MINUTES=60

SQL_SERVER=localhostSQL_DATABASE=masterSQL_PORT=1433SQL_USE_WINDOWS_AUTH=true          # Windows onlySQL_USERNAME=                       # For SQL AuthSQL_PASSWORD=                       # For SQL AuthQUERY_TIMEOUT=30MAX_RESULT_ROWS=1000ENABLE_SCHEMA_CACHE=trueCACHE_TTL_MINUTES=60

See platform-specific READMEs for detailed configuration instructions.

🔐 Security Features

✅ Read-only by default - Write operations disabled unless explicitly enabled
✅ Query validation - Only SELECT statements allowed by default
✅ Automatic timeouts - Prevents long-running queries
✅ Row limits - Prevents memory exhaustion
✅ SQL injection prevention - Query sanitization and validation
✅ Database whitelisting - Optional restriction to specific databases

🏗️ Architecture

MCP/├── sql-server-mcp/              # Windows implementation│   ├── src/│   │   ├── index.ts             # MCP server entry point│   │   ├── database/            # Connection, caching, queries│   │   ├── tools/               # 12 MCP tools│   │   └── types/               # TypeScript interfaces│   ├── dist/                    # Compiled output│   ├── package.json│   └── README.md                # Windows documentation│├── sql-server-mcp-mac/          # macOS implementation│   ├── src/                     # Same structure as Windows│   └── README.md                # macOS documentation│├── LICENSE                      # MIT License└── README.md                    # This file

MCP/├── sql-server-mcp/              # Windows implementation│   ├── src/│   │   ├── index.ts             # MCP server entry point│   │   ├── database/            # Connection, caching, queries│   │   ├── tools/               # 12 MCP tools│   │   └── types/               # TypeScript interfaces│   ├── dist/                    # Compiled output│   ├── package.json│   └── README.md                # Windows documentation│├── sql-server-mcp-mac/          # macOS implementation│   ├── src/                     # Same structure as Windows│   └── README.md                # macOS documentation│├── LICENSE                      # MIT License└── README.md                    # This file

🎯 Use Cases

Database Exploration

"What tables exist in this database?"
"Show me the structure of the Users table"
"List all stored procedures"

Schema Research

"Find all tables with an 'email' column"
"Search for anything related to 'invoice'"
"What views are available?"

Relationship Analysis

"How are Orders and Customers related?"
"Show me all tables that reference Products"
"What are the foreign key relationships for this table?"

Data Queries

"Get the top 10 most expensive products"
"Show me recent orders"
"What's the total count of records in each table?"

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

Built on Model Context Protocol SDK
Uses mssql and msnodesqlv8 drivers
Inspired by the need for better AI-database integration

📚 Resources

Windows Setup Guide: sql-server-mcp/README.md
macOS Setup Guide: sql-server-mcp-mac/README.md
Troubleshooting: Check platform-specific TROUBLESHOOTING.md files
MCP Documentation: https://github.com/modelcontextprotocol
Report Issues: https://github.com/TharanaBope/SQL-MCP-Mac-Windows/issues

🌐 Platform-Specific Documentation

Made with ❤️ for the MCP community

⭐ Star this repo if you find it useful! 🐛 Report bugs via Issues 💬 Questions? Check the Discussions

Source: README.md at commit 9d80105

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v1.0.4LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts

Platform	Directory	Key Features
Windows	`sql-server-mcp/`	Windows Auth, ODBC Driver, Native performance
macOS	`sql-server-mcp-mac/`	Docker SQL Server, Pure JS, No native deps

SQL Server MCP (Windows)

Overview

Installation

In SourceWeft

Other MCP clients

README

SQL Server MCP - Cross-Platform Database Integration for AI

🌟 Features

🎥 Demo

🚀 Quick Start

Windows Version → sql-server-mcp/

macOS Version → sql-server-mcp-mac/

📦 Installation

🎉 Now Available on MCP Registry!

🚀 Quick Start (Recommended)

Claude Desktop (Windows)

Claude Desktop (macOS)

🛠️ Development Setup

Windows

macOS

🛠️ Available MCP Tools

Schema Exploration

Relationship Mapping

Search & Discovery

Query Execution

💬 Example Usage

⚙️ Configuration

🔐 Security Features

🏗️ Architecture

🎯 Use Cases

Database Exploration

Schema Research

Relationship Analysis

Data Queries

🤝 Contributing

📄 License

🙏 Acknowledgments

📚 Resources

🌐 Platform-Specific Documentation

Tools

Version history

Score

Windows Version → `sql-server-mcp/`

macOS Version → `sql-server-mcp-mac/`