Thought I could use the open library covers API to retrieve book covers with an ISBN. Which, in theory, I can.

But the vast majority of what I’ve searched for so far have no cover, so it’s kind of not worth it.

The data is editable, so I could contribute the covers myself… But the site gives zero guidance on what is acceptable.

Can I just download the cover from the authors website and upload it, because fair use… Or is that a no-no?

https://openlibrary.org/dev/docs/api/covers