huggingface/README · Use free API from Hugging face

I want to enhance my flash card app developed using python and firebase to extract information from images (mostly screenshots from insta, social media posts). Attached herewith are the screenshots. Now to extract information pytesseract is used and the LLM to understand text to generate flash cards in a term & defenitions format. Problem is with the API's - I really dont know how to get free API. I copy the Key paste it in .env but it throws: Error: Hugging Face API error: 401 - {"error":"Invalid credentials in Authorization header"}. Since im a learner anything that supports my learning curve is welcome.
Thanks in advance