To get an OpenAI API key, you'll need to create an account first. It's free to sign-up for personal use, though, as noted, if you use it regularly, you'll have to pay once your free trial credit ...

How to use the ChatGPT API key There are generally two ways to use an OpenAI key: The key is entered into the settings page of a software program that accesses OpenAI for you. The key is used ...