> ## 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](/nodeapi/about/billing).

***

## **Parameters**

`blockNumber` - String - <span style={{color: "red"}}>Required</span> - 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 most recent secure block accepted by more than 2/3 of validators

## **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
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": [
        {
            "action": {
                "from": "0xea674fdde714fd979de3edf0f56aa9716b898ec8",
                "callType": "call",
                "gas": "0x7148",
                "input": "0x",
                "to": "0x60f18d941f6253e3f7082ea0db3bc3944e7e9d40",
                "value": "0x554b81ec144eea9"
            },
            "blockHash": "0xaa20f7bde5be60603f11a45fc4923aab7552be775403fc00c2e6b805e6297dbe",
            "blockNumber": 10000000,
            "result": {
                "gasUsed": "0x0",
                "output": "0x"
            },
            "subtraces": 0,
            "traceAddress": [],
            "transactionHash": "0x4a1e3e3a2aa4aa79a777d0ae3e2c3a6de158226134123f6c14334964c6ec70cf",
            "transactionPosition": 0,
            "type": "call"
        }
    ]
}
```

<CodeGroup>
  ```bash title="mainnet" theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  curl https://mainnet.ethereum.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
      -X POST \
      -H "Content-Type: application/json" \
      -d '{"jsonrpc":"2.0","method":"trace_block","params":["0x989680"],"id":1}'
      
  ```

  ```bash title="testnet" theme={"theme":{"light":"github-light","dark":"github-dark-default"}}
  curl https://sepolia.ethereum.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
      -X POST \
      -H "Content-Type: application/json" \
      -d '{"jsonrpc":"2.0","method":"trace_block","params":["0x4C4B40"],"id":1}'
  ```
</CodeGroup>


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