Do I need a Goodreads API key to retrieve book metadata?

I am trying to build an app around books. Goodreads has a great catalogue on books. But they stopped providing new API keys since December 2020.

My question is how can I retrieve just book metadata from Goodreads? I don't want any data associated with a user(in that case, requiring an API key is fair). My only requirement is just meaningless data(in the sense of user privacy) like author name, isbn, book description, cover image, published data, editions, etc.

I tried this get request in Postman, it returns an HTML response with title, author name, etc..: https://www.goodreads.com/book/isbn/0307277674

But, is it a viable solution? is it ok to use get requests like this to fetch the necessary metadata? or am I missing something? or, is there any better way to do this?