debug_traceCall | Base

Executes a call and retrieves a detailed execution trace of the call, similar to a transaction but without creating a transaction on the blockchain. This method is crucial for developers and analysts who need to understand the execution flow of a call, including all the operations (opcodes) executed, gas usage, and the call's outcome.


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To use debug_traceCall, send a POST request with a JSON RPC call in the body.


  • from (string): The address the call is sent from.
  • to (string): The address the call is directed to.
  • gasPrice (string): The gas price for the call.
  • data (string): The data sent along with the call.


The response includes a detailed execution trace of the call, providing insights into each step of the call's execution.

  • result (object): The detailed execution trace, including:
    • structLogs (array): An array of execution steps (opcodes) taken by the call.
    • gas (integer): The gas provided by the call.
    • returnValue (string): The return value of the call, if any.
    • gasUsed (integer): The total gas used by the call.
    • failed (boolean): Indicates whether the call failed.

Use case

The debug_traceCall method is essential for:

  • Developers debugging smart contract interactions.
  • Analysts conducting forensic analysis of calls.
  • Tools and services that provide insights into Ethereum Virtual Machine (EVM) execution.

Try the debug_traceCall RPC method yourself

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