# debug\_traceCall

Returns the number of possible tracing results by executing an eth call within the context of the given block execution.

This method will use `80` [Compute Units](https://docs.validationcloud.io/v1/about/billing).

***

## **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 has of the method signature and 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:

* `gas` - The integer of the total consumed gas in the transaction.
* `failed` - A boolean to indicate whether the transaction was successful or not.
* `returnValue` - The return value of the executed contract call.
* `structLogs` - An array of the trace result of each step with the following fields:
  * `pc` - The current index in bytecode.
  * `op` - The name of the current executing operation.
  * `gas` - The available gas in the execution.
  * `gasCost` - The gas cost of the operation.
  * `depth` - The number of levels of calling functions.
  * `error` - The error of the execution.
  * `stack` - An array of values in the current stack.
  * `memory` - An array of values in the current memory.
  * `storage` - The mapping of the current storage.
  * `refund` - Total total value of the current refund value.

```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 %}