> For the complete documentation index, see [llms.txt](/llms.txt).

# Linea trace methods

Infura provides access to the following trace API methods to allow users to gain insights into the execution of smart contracts and transactions:

- [trace_block](/services/reference/linea/json-rpc-methods/trace-methods/trace%5Fblock/)
- [trace_transaction](/services/reference/linea/json-rpc-methods/trace-methods/trace%5Ftransaction/)

info

- Trace API is currently an open beta feature, available to paying Infura customers.
- `trace_block` and `trace_transaction` returns [trace](#trace) diagnostic information.

## `trace`[​](#trace "Direct link to trace")

Provides an ordered trace of the instructions executed by the Ethereum Virtual Machine (EVM) during the execution of a smart contract transaction. Excludes precompiled contracts.

Trace example

```
"trace":[
  {
    "action":{
      "callType":"call",
      "from":"0xfe3b557e8fb62b89f4916b721be55ceb828dbd73",
      "gas":"0xffadea",
      "input":"0x",
      "to":"0x0100000000000000000000000000000000000000",
      "value":"0x0"
    },
    "result":{
      "gasUsed":"0x1e",
      "output":"0x"
    },
    "subtraces":0,
    "traceAddress":[
    ],
    "type":"call"
  }
]

```

| Key                 | Value                                                                                                                                                  |
| ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| action              | Transaction details.                                                                                                                                   |
| callType            | Whether the transaction is call or create.                                                                                                             |
| from                | Address of the transaction sender.                                                                                                                     |
| gas                 | Gas provided by sender.                                                                                                                                |
| input               | Transaction data.                                                                                                                                      |
| to                  | Target of the transaction.                                                                                                                             |
| value               | Value transferred in the transaction.                                                                                                                  |
| result              | Transaction result.                                                                                                                                    |
| gasUsed             | Gas used by the transaction. Includes any refunds of unused gas.                                                                                       |
| output              | Return value of the contract call. Contains only the actual value sent by a RETURN operation. If a RETURN was not executed, the output is empty bytes. |
| subtraces           | Traces of contract calls made by the transaction.                                                                                                      |
| traceAddress        | Tree list address of where the call occurred, address of the parents, and order of the current sub call.                                               |
| transactionHash     | Hash of the transaction.                                                                                                                               |
| transactionPosition | Transaction position.                                                                                                                                  |
| type                | Whether the transaction is a CALL or CREATE series operation.                                                                                          |