Now I can:

* use the same models I program against

* have access to function calls

* can see how much it's costing me

Side benefit: I can share my API key with a friend so they can use Gpt3.5 & 4 as open ai took their deposit but still labelled their account as free tier - mistakes happen.

Prerequisite: an open ai api key

https://github.com/acover288/playgpt

Use at your own risk as I blindly installed npm packages.