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Postgres and REST twins for Grok

com.cmdrvl/twinning

Twins for Postgres and REST: declared-subset Postgres, spec-defined REST, migration proof.

client:Grok transport:stdio runtime:npm

Install Postgres and REST twins in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "twinning": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cmdrvl/twinning-mcp"
      ]
    }
  }
}

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

Postgres and REST twins in other clients

Postgres and REST twins MCP server