FIRMSapi for ChatGPT

com.firmsapi/mcp

Look up, search and validate U.S. CBP FIRMS facility codes for piers, CFS, warehouses and FTZs.

client:ChatGPT transport:streamable-http tools:6

Install FIRMSapi in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.firmsapi.com/mcp

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