Hi @MEB_Marketing ,
Please refer to this thread for our latest integration with OpenAI. This integration does not require an API Key and doesn't require ChatGPT subscription. Let me know if it's helpful for you.
If you still would like to use the API, please note that the ChatGPT has a limited free usage. See this OpenAI help article for more details.
To sign up for the OpenAI API, you will need to go to this page and enter your card details. The pricing is pay per use, and is outside of Text Blaze.