IERC20
Standard interface for fungible tokens
IERC721
Standard interface for non-fungible tokens
IERC1155
Multi-token standard for fungible and non-fungible tokens
IERC4626
Tokenized vault standard for yield-bearing tokens
IERC2981
NFT royalty payment standard
IERC2612 (Permit)
Gasless token approvals via signatures
IERC3156
Flash loan standard interface
IERC1271
Smart contract signature validation
IERC165
Standard interface detection for smart contracts
IERC5805
Voting token interface with delegation
IERC1363
ERC-20 extension with transfer callbacks
IERC6909
Minimal multi-token standard with per-token allowances
IERC4906
NFT metadata update events
IERC1820 Registry
Global interface implementation registry