Introduction to how to get an API key (secret key) for ChatGPT.
Go to the OpenAI website and log in or create an account.
Click on Personal in the upper right corner.
Click on View API keys.
Click on Create new secret key.
Copy and save the API key (secret key). Keep this API key (secret key) secret from anyone other than those involved.
This API is free of charge up to a certain amount, but will be charged after a certain amount is exceeded.