What is reasoning for the number of interfaces in ERC721?

There are many interface contract.
I want to know why IERC721.sol is needed?

1 Like

Hi @Shinsaku,

ERC721 defines the different interfaces: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md

The OpenZeppelin Contracts API documentation covers these interfaces:

As per the OpenZeppelin documentation, only IERC721 is required in a contract to be ERC721 compliant.

Feel free to ask all the questions that you need.

Hi @Shinsaku,

Did the above reply answer your question?
If it did, can you mark it as the solution please :pray:
Otherwise, add follow up questions if you need.