> For the complete documentation index, see [llms.txt](https://docs.validationcloud.io/v1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.validationcloud.io/v1/base/debug-api/debug_tracecall.md).

# debug\_traceCall

Executes a call within the context of the given block and returns the trace of its execution.

This method will use `80` [Compute Units](/v1/about/billing.md).

***

## **Parameters**

`object` - Object - The transaction call object with the following fields:

* `from` - String - The address the transaction is sent from
* `to` - String - <mark style="color:red;">Required</mark> - The address the transaction is directed to
* `gas` - Integer - The integer of the gas provided for the transaction execution
* `gasPrice` - Integer - The integer of the gasPrice used for paid gas
* `value` - Integer - The integer of the value sent with this transaction
* `data` - String - The call data: the 4-byte function selector followed by the ABI-encoded parameters

`blockReference` - String - <mark style="color:red;">Required</mark> - The block number in hexadecimal format, the block hash, or tags: `"earliest"`, `"latest"` or `"pending"`.

`object` - Object (Optional) - The tracer object with the following fields:

* `tracer` - String - The type of tracer, options are: `callTracer` or `prestateTracer`.
  * `callTracer` - String - The callTracer keeps track of all call frames, including depth - calls, that are made during a transaction.
  * `prestateTracer` - String - The prestateTracer replays the transaction and tracks every part of state that occurred during the transaction.
* `tracerConfig` - Object (Optional) - The object to specify the configurations of the tracer.
  * `onlyTopCall` - Boolean - When set to true, this will only trace the primary (top-level) call and not any sub-calls. It eliminates the additional processing for each call frame.

## **Returns**

`result` - An object with the result of the trace, containing:

* `from` - The address the call is sent from.
* `gas` - The integer of the gas provided for the call execution.
* `gasUsed` - The integer of the gas used.
* `to` - The address the call is directed to.
* `input` - The data given at the time of input.
* `output` - The data returned by the call.
* `value` - The integer of the value sent with this call.
* `type` - The type of call.
* `calls` - A list of sub-calls, present when the call made further calls.

```bash
// Result
{
	"jsonrpc": "2.0",
	"result": {
		"from": "0x0000000000000000000000000000000000000000",
		"gas": "0x2faf080",
		"gasUsed": "0x53b8",
		"to": "0x6b175474e89094c44da98b954eedeac495271d0f",
		"input": "0x70a082310000000000000000000000006e0d01a76c3cf4288372a29124a26d4353ee51be",
		"value": "0x0",
		"type": "CALL"
	},
	"id": 1
}
```

{% tabs %}
{% tab title="mainnet" %}

```bash
curl https://mainnet.base.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"debug_traceCall","params":[{"from":null,"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"}, "latest", {"tracer": "callTracer"}],"id":1}'

```

{% endtab %}

{% tab title="testnet" %}

```bash
curl https://sepolia.base.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"debug_traceCall","params":[{"from":null,"to":"0x6b175474e89094c44da98b954eedeac495271d0f","data":"0x70a082310000000000000000000000006E0d01A76C3Cf4288372a29124A26D4353EE51BE"}, "latest", {"tracer": "callTracer"}],"id":1}'

```

{% endtab %}
{% endtabs %}