PostgreSQL (hardened, read-only)

Overview

PostgreSQL (hardened, read-only) is a Model Context Protocol (MCP) server: Read-only PostgreSQL over MCP. Writes refused at the parsed SQL, plus a READ ONLY transaction. In practice that means any MCP-compatible AI assistant can call PostgreSQL (hardened, read-only)'s tools directly — the model decides when to use them in a conversation or agent run.

It runs locally: the npm package postgres-mcp-hardened speaks MCP over stdio on your machine. Configuration happens through environment variables — you'll need DATABASE_URL. The current release is v0.1.9, published under the MIT license, with source at Eszetael/postgres-mcp-hardened on GitHub.

PostgreSQL (hardened, read-only) is listed under Database on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain PostgreSQL (hardened, read-only) for Eszetael, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "postgresql_hardened_read_only": {
      "command": "npx",
      "args": [
        "-y",
        "postgres-mcp-hardened"
      ],
      "env": {
        "DATABASE_URL": "<database-url>"
      }
    }
  }
}

Requires DATABASE_URL