The eth_getCode method returns the compiled bytecode of a smart contract at a given address on the Optimism network. This method retrieves the actual code deployed at an address, allowing you to verify if an address is a contract or an externally owned account (EOA), analyze contract implementations, and verify deployed contract code matches expected bytecode. Returns empty (0x) for EOAs.

Parameters

parameter	type	description
address	string (required)	The contract address (20 bytes)
blockParameter	string (required)	Block number in hex or tag (latest, earliest, pending)

Return Object

The method returns the contract bytecode as a hex string, or "0x" if address has no code.

Request Example

Request

Response Example

Response

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