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Works with

Claude CodeClaude DesktopCursorVS CodeClineCodex CLIOpenClaw+ any MCP client

Install to Claude Code

This server doesn't publish a one-line install command. Follow the setup in the source repository.

Summary

Enables AI models to execute SQL queries, list tables, and describe table structures on a local PostgreSQL database.

README.md

PostgreSQL MCP Server

这是一个MCP (Model Context Protocol) 服务器,允许GPT-4等AI模型查询本地PostgreSQL数据库。

功能

  • 执行SQL查询
  • 列出数据库中的所有表
  • 获取表的结构信息

安装

  1. 克隆或下载项目
  2. 安装依赖:
npm install

配置

  1. 复制环境变量模板:
cp .env.example .env
  1. 编辑 .env 文件,配置你的PostgreSQL连接信息:
DB_HOST=localhost
DB_PORT=5432
DB_NAME=your_database_name
DB_USER=your_username
DB_PASSWORD=your_password

运行

开发模式

npm run dev

生产模式

npm run build
npm start

在Claude Desktop中配置

在Claude Desktop的配置文件中添加以下配置:

{
  "mcpServers": {
    "postgres": {
      "command": "node",
      "args": ["/path/to/your/project/index.js"],
      "env": {
        "DB_HOST": "localhost",
        "DB_PORT": "5432",
        "DB_NAME": "your_database_name",
        "DB_USER": "your_username",
        "DB_PASSWORD": "your_password"
      }
    }
  }
}

可用工具

query_database

执行SQL查询

  • query: SQL查询语句
  • params: 可选的查询参数数组

list_tables

列出数据库中的所有表

describe_table

获取指定表的结构信息

  • table_name: 表名

示例

一旦配置完成,你可以在Claude中使用以下命令:

  1. "列出数据库中的所有表"
  2. "描述users表的结构"
  3. "查询所有用户:SELECT * FROM users LIMIT 10"

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