Plumb Registry for Claude.ai
com.plumbregistry/directory
Search and verify fire protection contractor licenses (TX SFMO, CA CSLB C-16) from state records.
client:Claude.ai
transport:streamable-http
tools:3
Install Plumb Registry in Claude.ai
Settings → Connectors → Add custom connector
https://plumbregistry.com/mcp
Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs