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

# debug_traceBlockByNumber

> Returns EVM execution traces for all transactions in a block by block number.

Returns the EVM execution traces for all transactions in a block identified by its number.

<Warning>
  Debug methods replay all transactions in the block and are computationally expensive. Availability varies by [node provider](/base-chain/node-operators/node-providers).
</Warning>

## Parameters

<ParamField body="block" type="string" required>
  Block number in hex, or `"latest"`, `"earliest"`, `"safe"`, `"finalized"`.
</ParamField>

<ParamField body="tracerConfig" type="object">
  Optional tracer configuration. See [`debug_traceTransaction`](/base-chain/api-reference/debug-api/debug_traceTransaction) for options.
</ParamField>

## Returns

<ResponseField name="result" type="array">
  Array of trace objects, one per transaction in the block.
</ResponseField>

## Example

<CodeGroup>
  ```json Request theme={null}
  {
    "jsonrpc": "2.0",
    "method": "debug_traceBlockByNumber",
    "params": ["latest", {"tracer": "callTracer"}],
    "id": 1
  }
  ```

  ```json Response theme={null}
  {
    "jsonrpc": "2.0",
    "id": 1,
    "result": [
      {
        "result": {
          "type": "CALL",
          "gasUsed": "0xab3f"
        }
      }
    ]
  }
  ```
</CodeGroup>