PostgreSQL

Name: PostgreSQL
Author: divyanshu-vashu

@divyanshu-vashu

Repository

About PostgreSQL

No overview available yet

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Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "MCP-SERVER-PG": {
      "command": "docker",
      "args": [
        "build",
        "-t",
        "mcp/postgres",
        "-f",
        "src/postgres/Dockerfile",
        "."
      ]
    }
  }
}

Tools

Execute read-only SQL queries against the connected database

Overview

What is PostgreSQL?

A Model Context Protocol server that provides read‑only access to PostgreSQL databases. It enables LLMs to inspect database schemas and execute read‑only SQL queries against a connected PostgreSQL instance.

How to use PostgreSQL?

Configure the server in the mcpServers section of claude_desktop_config.json. Use either Docker (docker run -i --rm mcp/postgres postgresql://...) or NPX (npx -y @modelcontextprotocol/server-postgres). Provide a PostgreSQL connection URL, optionally including username and password.

Key features of PostgreSQL?

Execute read‑only SQL queries via the query tool.
Automatically discover and expose JSON table schemas.
Schemas include column names and data types.
All queries run inside a READ ONLY transaction.
Supports Docker and NPX deployment.
MIT licensed.

Use cases of PostgreSQL?

Let an LLM explore a live PostgreSQL database schema.
Run safe, read‑only analytical queries from a chat interface.
Allow users to ask natural‑language questions about database content.
Provide schema context to AI agents for generating accurate SQL.

FAQ from PostgreSQL

What type of queries does this server support?

Only read‑only SQL queries. All executions are wrapped in a READ ONLY transaction to prevent modifications.

How do I connect to a PostgreSQL database running on my local machine?

When using Docker on macOS, use host.docker.internal as the host in the connection URL. For example: postgresql://host.docker.internal:5432/mydb. Replace /mydb with your database name.

Can I include credentials in the connection URL?

Yes. Use the full PostgreSQL URI format: postgresql://user:password@host:port/db‑name.

What information does the server expose as resources?

For each table, a JSON schema resource (postgres://<host>/<table>/schema) is provided, containing column names and data types, automatically discovered from database metadata.

How do I run the server without Docker?

Use the NPX method: set the command to npx with arguments -y @modelcontextprotocol/server-postgres followed by your connection string.

Comments

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