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Grok

Postgres MCP for Grok

io.github.edelciomolina/postgres-mcp

PostgreSQL MCP wrapper with .env credential mapping, tool selection, and safe read-only defaults.

client:Grok transport:stdio runtime:npm

Install Postgres MCP in Grok

.mcp.json (in your project root)

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "postgres-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@edelciomolina/postgres-mcp"
      ],
      "env": {
        "MCP_KEY_HOST": "<MCP_KEY_HOST>",
        "MCP_KEY_PORT": "<MCP_KEY_PORT>",
        "MCP_KEY_NAME": "<MCP_KEY_NAME>",
        "MCP_KEY_USER": "<MCP_KEY_USER>",
        "MCP_KEY_PASS": "<MCP_KEY_PASS>",
        "MCP_KEY_SSLMODE": "<MCP_KEY_SSLMODE>"
      }
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

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