This article contains screenshots from OS2's open beta experience. For support with OS1, contact our Support team.
What is rarity?
We use “rarity” ranking to describe the relative scarcity of one NFT’s trait compared to another in the same collection. An NFT with rare traits will have a lower rarity ranking than an NFT that shares traits with thousands of others in the collection.
When rarity rankings vary across platforms and use different methodologies, it can cause confusion for buyers and sellers and make it difficult to use rarity for purchase and sale decisions.
To provide a unified and transparent set of rarity rankings across our marketplace, OpenSea has adopted the OpenRarity standard — an open, transparent and reproducible standard for rarity rankings across the NFT industry.
OpenRarity is an open collaboration between OpenSea, icy.tools, Curio, and PROOF. It includes Double Sort and Trait Count updates, improving rarity rankings for 1 out of 1 unique traits and giving more weight to trait counts that are less common.
How can I see rarity rankings?
Eligible collections will show a rarity ranking for each NFT from the collection page.
Hover over the rarity ranking to see its percentage rank. OpenRarity rarity rankings directly reflect the creator-published trait data and can change over time if the creator makes changes to item metadata.
Collector mode rarity ranking
Pro mode rarity ranking
How can I sort by rarity?
Use the filters on the collection page to filter by Rarity.
You can also navigate to the Traits tab to view traits and their respective rarity.
For Creators: How do I show rarity for my collection?
We’ll automatically display OpenRarity rarity rankings for eligible collections with the following properties:
Only ERC721/non-fungible items (no ERC1155/semi-fungible items)
Only string traits (no numeric traits)
Trait information exists
We recommend only showing rarity if the collection is fully revealed and the item metadata won’t be changed.
If metadata changes, it can impact the rarity ranks and confuse users who expected the rarity to remain static. If you plan to make metadata changes that will impact rank, we suggest you clearly communicate these changes and their impact to your community.
Here’s how to turn off rarity for items in your collection:
Select Studio from the lefthand sidebar.
On the collection you'd like to edit, select Edit details
Once in the collection editor, scroll down to the Show OpenRarity ranking header. Click the toggle to turn it off.
You can change this setting anytime, but be aware that frequent changes could cause confusion within your community.
When OpenRarity is enabled for your collection on OpenSea, the rarity ranks will be visible on OpenSea and available via the OpenSea API.
Why don’t all collections show rarity?
If you don't see rarity for a collection, it's because the creator has not opted-in to show rarity, or the collection isn’t eligible for rarity. You can reach out to the creator to let them know you’d like to see OpenRarity rarity rankings for the collection.