> For the complete documentation index, see [llms.txt](https://nftuloan.gitbook.io/nftuloan-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nftuloan.gitbook.io/nftuloan-whitepaper/protocol/nft-collections-estimation.md).
# NFT Collections Estimation
We have set rules for collections selection. This is to avoid proposing fast decaying collections to our users. So we have created an algorithm to select a collection appropriately and to also know at what price we can propose an NFT to be lent.
The calculation is proprietary but what we can say is that we have 6 different criterias to tag the price of a collection.
The calculation is done multiple times a day to assure the right price for borrowers.
