Plumb Registry for ChatGPT

com.plumbregistry/directory

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

client:ChatGPT transport:streamable-http tools:3

Install Plumb Registry in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://plumbregistry.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs