Yes, Postgresql is free to use.

How do I install Postgresql?

Postgresql is a local plugin. Install it using PyPI package: mdev-postgresql-mcp-server and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does Postgresql need?

Postgresql requires the following credentials or environment variables: POSTGRES_HOST, POSTGRES_PORT, POSTGRES_USER, POSTGRES_PASSWORD, POSTGRES_DB, POSTGRES_READ_QUERY_LIMIT. You can find setup instructions on the server detail page.

What AI apps work with Postgresql?

Postgresql uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Postgresql MCP Server

by Musaddiq Dev

Data & AnalyticsLow Risk10.0MCP RegistryLocal

Free

Server data from the Official MCP Registry

Python MCP server for PostgreSQL database inspection and querying

About

Python MCP server for PostgreSQL database inspection and querying

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 4 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry. 1 finding(s) downgraded by scanner intelligence.

6 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Unverified package source

We couldn't verify that the installable package matches the reviewed source code. Proceed with caution.

What You'll Need

Set these up before or after installing:

PostgreSQL hostOptional

Environment variable: POSTGRES_HOST

PostgreSQL portOptional

Environment variable: POSTGRES_PORT

PostgreSQL usernameOptional

Environment variable: POSTGRES_USER

PostgreSQL passwordRequired

Environment variable: POSTGRES_PASSWORD

PostgreSQL database nameOptional

Environment variable: POSTGRES_DB

Maximum rows returned by read queriesOptional

Environment variable: POSTGRES_READ_QUERY_LIMIT

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-musaddiq-dev-postgresql-mcp-server": {
      "env": {
        "POSTGRES_DB": "your-postgres-db-here",
        "POSTGRES_HOST": "your-postgres-host-here",
        "POSTGRES_PORT": "your-postgres-port-here",
        "POSTGRES_USER": "your-postgres-user-here",
        "POSTGRES_PASSWORD": "your-postgres-password-here",
        "POSTGRES_READ_QUERY_LIMIT": "your-postgres-read-query-limit-here"
      },
      "args": [
        "mdev-postgresql-mcp-server"
      ],
      "command": "uvx"
    }
  }
}

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Postgresql MCP Server

About

Security Report

Findings (1)

What You'll Need

How to Install

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