GotFreeFax for ChatGPT

com.gotfreefax/mcp

Send free or paid faxes to US/Canada from Claude, ChatGPT, and other AI agents.

client:ChatGPT transport:streamable-http tools:7

Install GotFreeFax in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://www.gotfreefax.com/mcp

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