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PostgreSQL MCP Server

by KannaKim

Servidor MCP de PostgreSQL

Un servidor genérico del Protocolo de Contexto de Modelo (MCP) para PostgreSQL, que permite a los agentes de IA inspeccionar y consultar bases de datos PostgreSQL de forma segura.

Características

  • list_tables: Lista todas las tablas en el esquema public.

  • get_schema: Obtiene el esquema (columnas, tipos, nulabilidad) de una tabla específica.

  • run_query: Ejecuta una consulta SQL de solo lectura (solo se permiten SELECT/WITH) con un límite máximo de 100 filas para evitar respuestas demasiado grandes.

Related MCP server: PostgreSQL MCP Server

Requisitos previos

  • Python 3.13+

  • uv

  • Base de datos PostgreSQL

Instalación

Puedes ejecutar esto directamente usando uvx o uv run si clonas el repositorio.

Uso

Este servidor requiere que la variable de entorno DATABASE_URL esté configurada.

Ejemplo de cadena de conexión: postgres://usuario:contraseña@localhost:5432/mibasededatos

Ejecución directa

DATABASE_URL="postgresql://postgres:poggerpogger@localhost:5432/boxboxWeb" uv run main.py

Uso con Claude Desktop / Clientes MCP

Añade lo siguiente a la configuración de tu cliente MCP (por ejemplo, en claude_desktop_config.json de Claude Desktop):

{
  "mcpServers": {
    "postgres": {
      "command": "uv",
      "args": [
        "run",
        "/path/to/2025postgresqlmcp/main.py"
      ],
      "env": {
        "DATABASE_URL": "postgres://user:password@localhost:5432/mydatabase"
      }
    }
  }
}
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