trace_call

​

Parameters

• earliest - For the earliest/genesis block
• latest for the latest mined block
• safe for the most recent secure block
• finalized for the most recent secure block accepted by more than 2/3 of validators

​

Returns

• output - string - The data returned as output encoded in hexadecimal format
• stateDiff - object - The altered Ethereum state due to execution of the given transaction, or null if not available
• trace - array - An array of basic trace objects for the given transaction containing:
  • action - object The ParityTrace action object containing call details
    • from - string - The address of the sender
    • callType - string - The type of method such as call, staticcall, delegatecall
    • gas - string - The gas provided by the sender, encoded as hexadecimal
    • input - string - The input data sent along with the transaction
    • to - string - The address of the receiver
    • value - string - The integer of the value sent with this transaction, encoded as hexadecimal
  • result - object - The execution result of the trace
    • gasUsed - string - The amount of gas used by this trace
    • output - string - The return value of the contract call, empty if no RETURN executed
  • subtraces - integer - The number of subtraces (internal calls) within this trace
  • traceAddress - array - The list of addresses where the call executed, including parent calls and order
  • type - string The type of the trace, such as call or create
• vmTrace - object - The full trace of the virtual machine’s state during execution, including sub-calls, or null if not available

// Result
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "output": "0x0000000000000000000000000000000000000000000000000000000000000001",
    "stateDiff": null,
    "trace": [
      {
        "type": "call",
        "action": {
          "from": "0xae054f4e67bd9c95844e0152f5face89ee4e7e45",
          "callType": "call",
          "gas": "0x2fa9c00",
          "input": "0xa9059cbb000000000000000000000000d4db58f65cc967a67449dc1570f408aeb496e5c80000000000000000000000000000000000000000000000000de0b6b3a7640000",
          "to": "0xb9cd945141f7d99fd562a6222accde5043350ad4",
          "value": "0x0"
        },
        "result": {
          "gasUsed": "0x9a3c",
          "output": "0x0000000000000000000000000000000000000000000000000000000000000001"
        },
        "subtraces": 0,
        "traceAddress": []
      }
    ],
    "vmTrace": null
  }
}

curl https://mainnet.hyperliquid.validationcloud.io/v1/<YOUR_API_KEY_HERE>/evm \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"trace_call","params":[{"from":"0xae054f4e67bd9c95844e0152f5face89ee4e7e45","to":"0xb9cd945141f7d99fd562a6222accde5043350ad4","data":"0xa9059cbb000000000000000000000000d4db58f65cc967a67449dc1570f408aeb496e5c80000000000000000000000000000000000000000000000000de0b6b3a7640000"},["trace"],"latest"],"id":1}'