123 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Storage slot read, Arbitrum. Read one raw storage slot of a contract on Arbitrum One (eth_getStorageAt): the 32-byte word, as a number and, when it holds one, as an address. Slot is a decimal index or a 0x 32-byte key (m...
Eth call, Base contract call. Read-only contract call on Base (eth_call): send ABI-encoded calldata to a contract at the latest block and get the raw return data, without a transaction or gas. Use to read any view functi...
Proxy implementation, Base. Find the implementation behind a proxy contract on Base: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-proxy by...
Storage slot read, Base. Read one raw storage slot of a contract on Base (eth_getStorageAt): the 32-byte word, as a number and, when it holds one, as an address. Slot is a decimal index or a 0x 32-byte key (mapping and p...
Eth call, Ethereum contract call. Read-only contract call on Ethereum (eth_call): send ABI-encoded calldata to a contract at the latest block and get the raw return data, without a transaction or gas. Use to read any vie...
Proxy implementation, Ethereum. Find the implementation behind a proxy contract on Ethereum: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-...
Storage slot read, Ethereum. Read one raw storage slot of a contract on Ethereum (eth_getStorageAt): the 32-byte word, as a number and, when it holds one, as an address. Slot is a decimal index or a 0x 32-byte key (mappi...
Eth call, Optimism contract call. Read-only contract call on Optimism (eth_call): send ABI-encoded calldata to a contract at the latest block and get the raw return data, without a transaction or gas. Use to read any vie...
Proxy implementation, Optimism. Find the implementation behind a proxy contract on Optimism: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-...
Storage slot read, Optimism. Read one raw storage slot of a contract on Optimism (eth_getStorageAt): the 32-byte word, as a number and, when it holds one, as an address. Slot is a decimal index or a 0x 32-byte key (mappi...
Eth call, Polygon contract call. Read-only contract call on Polygon PoS (eth_call): send ABI-encoded calldata to a contract at the latest block and get the raw return data, without a transaction or gas. Use to read any v...
Proxy implementation, Polygon. Find the implementation behind a proxy contract on Polygon PoS: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minima...
Storage slot read, Polygon. Read one raw storage slot of a contract on Polygon PoS (eth_getStorageAt): the 32-byte word, as a number and, when it holds one, as an address. Slot is a decimal index or a 0x 32-byte key (map...
Execute one bounded eth_call against Base, Ethereum, or Arbitrum and return raw deterministic call data without signing or broadcasting.
Arbitrum One contract check. Check whether a 0x address on Arbitrum One is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before...
Base contract check. Check whether a 0x address on Base is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or...
Ethereum contract check. Check whether a 0x address on Ethereum is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending...
Optimism contract check. Check whether a 0x address on Optimism is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending...
Polygon PoS contract check. Check whether a 0x address on Polygon PoS is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before se...
Determine whether a Base address is a contract or an externally-owned account.
Is this address a contract? Bytecode size, EIP-1967 proxy implementation and EIP-7702 delegation. Default chain Base; prefix another: ethereum:, arbitrum:, optimism:, polygon:, bsc:. $0.01 per call.
Eth call, Ink contract call. Read-only contract call on Ink (eth_call): send ABI-encoded calldata to a contract at the latest block and get the raw return data, without a transaction or gas. Use to read any view function...
Ink contract check. Check whether a 0x address on Ink is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or a...
Proxy implementation, Ink. Find the implementation behind a proxy contract on Ink: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-proxy byte...