ERC721K is a maximally efficient (WIP), minimalist ERC-721 implementation. Inspired by solmate/ERC721's minimalist architecture and forked from ERC721A, the contract seeks to reduce ERC721 gas costs as much as possible.
See how ERC721K compares to other popular implementations in gas benchmarks.
Though this contract has not been professionally audited, it has a strong test suite forked from solmate.
I intend to keep this repository active and to continually improve upon the code. If you see any possible improvement, please submit a pull request.
DISCLAIMER: This contract has not been professionally audited. By using this contract in any way you assume all risks and liability.