Servidor Model Context Protocol que expone introspección y consulta read-only sobre PostgreSQL. Diseñado para alimentar de contexto a Claude (Claude Code, Claude Desktop) sin riesgo de escritura.
mcp-postgres is an MCP project maintained in the cuevacelis/mcp_postgres repository. The maintainer describes its purpose as “Servidor Model Context Protocol que expone introspección y consulta read-only sobre PostgreSQL. Diseñado para alimentar de contexto a Claude (Claude Code, Claude Desktop) sin riesgo…”. Read the project documentation for the complete scope.
The project provides a local client configuration using node. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.
The example declares DB_HOST, DB_NAME, DB_USER, DB_PASSWORD, DB_SCHEMAS. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| postgres_list_schemas | Lista esquemas accesibles. |
| postgres_list_tables | Tablas de un esquema con conteo de columnas (paginado). |
| postgres_describe_table | Columnas, constraints (PK/FK/UNIQUE) e índices. |
| postgres_list_functions | Funciones/procedimientos con firma, retorno y lenguaje (paginado). |
| postgres_list_triggers | Triggers con tabla, evento y timing (paginado). |
| postgres_get_function_definition | Código fuente de una función (con soporte de sobrecarga). |
| postgres_get_trigger_definition | Definición completa de un trigger. |
| postgres_list_views | Vistas regulares y materializadas (paginado). |
| postgres_search_columns | Busca columnas por nombre/patrón en todos los esquemas permitidos. |
| postgres_query_table | SELECT seguro sobre una sola tabla con filtros estructurados. |
| postgres_execute_query | SELECT/WITH avanzado (JOINs, CTEs, agregaciones). Single-statement, READ ONLY. |
| postgres_explain_query | EXPLAIN / EXPLAIN ANALYZE de un SELECT — perfila planes antes de ejecutar. |
| postgres_get_table_stats | Tamaño total/tabla/índices/toast, vacuum/analyze, índices con idx_scan = 0. |
{
"mcpServers": {
"postgres": {
"command": "node",
"args": [
"/ruta/absoluta/al/proyecto/dist/index.js"
],
"env": {
"DB_HOST": "...",
"DB_NAME": "...",
"DB_USER": "...",
"DB_PASSWORD": "YOUR_DB_PASSWORD",
"DB_SCHEMAS": "public"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| DB_HOST | Declared in the maintainer’s client configuration. | Check documentation |
| DB_NAME | Declared in the maintainer’s client configuration. | Check documentation |
| DB_USER | Declared in the maintainer’s client configuration. | Check documentation |
| DB_PASSWORD | Declared in the maintainer’s client configuration. | Check documentation |
| DB_SCHEMAS | Declared in the maintainer’s client configuration. | Check documentation |
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