MS SQL Server MCP Server

@TerraCo89

代码仓库

基本信息

分类

数据库

许可证

MIT

传输方式

stdio

作者

TerraCo89

关于 MS SQL Server MCP Server

MCP server for Microsoft SQL Server - typed schema inspection and parameterized CRUD tools for LLM agents

#mcp-server #mssql #database-integration

MS SQL Server MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "mcp-server-mssql": {
      "command": "python",
      "args": [
        "-m",
        "venv",
        "venv"
      ]
    }
  }
}

MS SQL Server MCP Server 工具

List all user tables in the configured database

Column names, types, nullability, and defaults for a table

Read rows with optional column selection, WHERE filters, ORDER BY, and LIMIT

Insert one or more rows (column/value validated against schema)

Update rows matching a filter; returns affected count

Delete rows matching a filter; returns affected count

概览

What is MS SQL Server MCP Server?

The MS SQL Server MCP Server is a Model Context Protocol server that gives LLM agents safe, structured access to Microsoft SQL Server. It provides schema inspection and row-level CRUD operations, with every query parameterized and logged for accountability.

How to use MS SQL Server MCP Server?

Requires Node.js 18+ and network access to a SQL Server instance. Clone the repository, install dependencies, copy .env.example to .env and fill in database connection variables (MSSQL_HOST, MSSQL_USER, MSSQL_PASSWORD, MSSQL_DATABASE), then build with npm run build. Run with node dist/server.js and configure as an MCP server (stdio) in Claude Desktop or Claude Code.

Key features of MS SQL Server MCP Server

Six typed tools: list_tables, get_table_schema, read_table_rows, create_table_records, update_table_records, delete_table_records
All queries are parameterized to prevent SQL injection
Table and column names validated against live schema before execution
Structured logging to a logs/ directory
Supports row-level insert, update, and delete with affected-row counts
Communicates over stdio with any MCP client

Use cases of MS SQL Server MCP Server

An LLM agent inspects database schema before constructing queries
Read rows with optional column selection, WHERE filters, ORDER BY, and LIMIT
Safely insert, update, or delete records while maintaining audit trails
Provide structured database access to Claude Desktop or Claude Code
Let a least‑privilege SQL login drive agent interactions

常见问题

What runtime does the server require?

Node.js 18 or later and network access to a SQL Server instance.

How do I configure the database connection?

Set environment variables: `MSSQL_HOST`, `MSSQL_USER`, `MSSQL_PASSWORD`, `MSSQL_DATABASE`, and optionally `MSSQL_PORT` (default 1433), `MSSQL_ENCRYPT`, `MSSQL_TRUST_SERVER_CERTIFICATE`, and `LOG_LEVEL`.

Can the server connect to multiple databases?

No – it connects to a single database per server instance, configured via the `MSSQL_DATABASE` variable.

What transport protocol does it use?

It uses stdio transport, suitable for MCP clients like Claude Desktop and Claude Code.

How does the server protect against injection?

All queries are parameterized, and identifier names (table and column) are validated against the live schema before any statement runs. You should connect with a least‑privilege SQL login

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