eth_getCode | Optimism

Optimism API method eth_getCode retrieves the code stored at a specific address. This method is typically used to inspect the bytecode of smart contracts on the Optimism blockchain.

This example retrieves the bytecode of the Chainlink token on the Optimism Mainnet.


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  • address — the address to get the code from.
  • block — the block number (in hexadecimal) or one of the strings "earliest", "latest", or "pending", indicating the state to consider. The default is "latest".


  • result — the code from the specified address, returned as a hexadecimal string.

Use case

The eth_getCode method is essential for:

  • Developers and auditors who need to verify the deployed bytecode of smart contracts.
  • DApps that interact with contracts dynamically based on their code.
  • Tools and services that monitor and analyze contract deployments and updates.

Try the eth_getCode RPC method yourself

Click Try It! to start a request and see the response here!