Wow! Full upvote from my side. By the way, is it difficult to add functionality to give an estimated value of the cards in the collection, based on recent market prices? Or does anyone know about such functionality in other bots/tools?

I think an old application that is no longer functional had it. From what I know, it would be something complex to develop and the process to obtain the result would be long, because the collections of an average player must have more than 10k nfts. But it is possible as such.