IERC1820 Registry
Global interface implementation registry
What is IERC1820 Registry?
IERC1820 defines a global registry where contracts and addresses can register which interfaces they implement. It provides a universal lookup mechanism for interface discovery, used by ERC-777 and other standards for callback routing.
Supported chains
EthereumPolygonArbitrumOptimismBaseBNB ChainAvalanche
Key Features
setInterfaceImplementer() for registration
getInterfaceImplementer() for lookup
Universal on-chain registry
Foundation for ERC-777 callbacks
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