> ## Documentation Index
> Fetch the complete documentation index at: https://docs.validationcloud.io/llms.txt
> Use this file to discover all available pages before exploring further.

# trace_block

Returns traces created at given block.

This method will use `80` [Compute Units](https://docs.validationcloud.io/nodeapi/about/billing.md).

***

## **Parameters**

`blockNumber` - String - Required - The block number as a string in hexadecimal format or tags. The supported tag values include:

* `earliest` - For the earliest/genesis block
* `latest` for the latest mined block
* `safe` for the most recent secure block
* `finalized` for the latest block whose Ethereum (L1) data is finalized

## **Returns**

`array` - The block traces, which have the following fields (all return types are hexadecimal unless otherwise noted):

* `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
* `blockHash` - string - The hash of the block where this transaction was in
* `blockNumber` - integer - The block number where this transaction was in
* `result` - object - The ParityTrace result object containing execution outcome
  * `gasUsed` - string -The amount of gas used by this specific transaction
  * `output` - string - The return value of the contract call, empty if no RETURN executed
* `subtraces` - integer - The number of subtraces (internal calls) made by the transaction
* `traceAddress` - array - The list of addresses where the call executed, including parent addresses and call order
* `transactionHash` - string - The hash of the transaction
* `transactionPosition` - integer - The transaction index position within the block
* `type` - string - The type of the trace, such as call or create
* `error` - string - The error message, if any

```json theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
// Result (first of the block's 36 traces shown)
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": [
    {
      "action": {
        "from": "0xdeaddeaddeaddeaddeaddeaddeaddeaddead0001",
        "callType": "call",
        "gas": "0xee9f8",
        "input": "0x3db6be2b00000000000000000000000000000005000000006adab4a700000000019092be00000000000000000000000000000000000000000000000000000000...",
        "to": "0x4200000000000000000000000000000000000015",
        "value": "0x0"
      },
      "blockHash": "0x241a36521807e99d82624139dd3dd2ee0007c3126d9e15b82d08e2e76b6b7c8f",
      "blockNumber": 73949032,
      "result": {
        "gasUsed": "0x5c12",
        "output": "0x"
      },
      "subtraces": 1,
      "traceAddress": [],
      "transactionHash": "0x0cf46910a7ede71333dbb1689c03b2eb77b958af08701039cbef40f0cace0a4c",
      "transactionPosition": 0,
      "type": "call"
    }
  ]
}
```

```bash title="mainnet" theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
curl https://mainnet.xlayer.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"trace_block","params":["0x4685f68"],"id":1}'
```


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