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mcp/harbor
Grok

Plumb Registry for Grok

com.plumbregistry/directory

Search and verify fire protection contractor licenses (TX SFMO, CA CSLB C-16) from state records.

client:Grok transport:streamable-http tools:3

Install Plumb Registry in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "directory": {
      "type": "http",
      "url": "https://plumbregistry.com/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

What Grok can do once it is connected

Plumb Registry in other clients

Plumb Registry MCP server