Initially I thought: wow, finally I can play with GPT-3 without going through the closed beta application process. But the tool requires an OpenAI API key. The linked website doesn't specify that with a single word. It's only mentioned on Github.

I've been there myself tbh. When you have worked a lot on something, it's often hard to take a step back and specify all of the basic things that people first exposed to your invention don't know about.