MCP Postgres Query Server MCP Server

MCP server for Claude Desktop. That is what the mcp postgres query server mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.

The short version

A Model Context Protocol (MCP) server implementation for querying a PostgreSQL database in read-only mode, designed to work with Claude Desktop and other MCP clients.

This project implements a Model Context Protocol (MCP) server that provides:

• Read-Only Database Access — Only SELECT queries are permitted for security
• Query Validation — Prevents potentially harmful SQL operations
• Timeout Protection — Queries running longer than 10 seconds are automatically terminated
• MCP Protocol Support — Complete implementation of the Model Context Protocol
• JSON Response Formatting — Query results are returned in structured JSON format

Getting it running

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client.

The tools it exposes

The server publishes 1 tool. What each one is for:

• Tools — The Tools tool exposed by this server

What it needs from you

• Node.js (v14 or later) - npm (comes with Node.js) - PostgreSQL database (connection details provided via command line)

Things to watch

• It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
• Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

How it compares

This sits in the database access group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. MCP Postgres Query Server's toolset — Tools — is a fair guide to whether it matches your workflow. It is maintained by RathodDarshil; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.