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IERC165

Standard interface detection for smart contracts

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ERC-165introspectiondetectionstandardcompatibility

What is IERC165?

IERC165 defines a standard method for contracts to publish and detect which interfaces they implement. It allows contracts and dapps to check whether a contract supports a specific interface before calling its functions, preventing failed transactions.

Supported chains
EthereumPolygonArbitrumOptimismBaseBNB ChainAvalanche

Key Features

supportsInterface() for capability checking
4-byte interface identifier system
Prevents calls to unsupported functions
Foundation for ERC-721 and ERC-1155

Tools related to IERC165

Discover tools that are frequently used with IERC165

IERC20

Standard interface for fungible tokens

EthereumPolygonArbitrum +4

IERC721

Standard interface for non-fungible tokens

EthereumPolygonArbitrum +4

IERC1155

Multi-token standard for fungible and non-fungible tokens

EthereumPolygonArbitrum +4

OpenZeppelin Solidity Interfaces

Reference guide to the most important Solidity interfaces from OpenZeppelin Contracts. ERC-20, ERC-721, ERC-1155, vaults, royalties, and more.

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