The SimpleHash API leverages the OpenRarity standard to calculate consistent, mathematically-grounded rarity score for NFTs.
Currently, ERC-721 and Metaplex non-fungible token standards are supported. Support for ERC-1155 is expected soon.
rarity model:
| Field | Description | Type(s) |
|---|---|---|
| rank | Rarity rank, relative to the scores of all other NFTs in the collection | int / null |
| score | Raw rarity score | float / null |
| unique_attributes | The number of unique attributes, or traits, if any, that this NFT possesses | int / null |