# eth\_getUncleCountByBlockNumber

Returns the number of uncles in a block from a block matching the given block hash.

This method will use `20` [Compute Units](https://docs.validationcloud.io/v1/about/billing).

***

## Reference: [Here](https://ethereum.org/en/developers/docs/apis/json-rpc/#eth_getunclecountbyblocknumber)

## **Parameters**

1. `QUANTITY|TAG` - integer of a block number, or the string "latest", "earliest" or "pending", see the [default block parameter](https://ethereum.org/en/developers/docs/apis/json-rpc/#default-block-parameter)

```bash
params: [
  "0xe8", // 232
]
```

## Returns

`QUANTITY` - integer of the number of uncles in this block.

```bash
// Result
{
  "id":1,
  "jsonrpc": "2.0",
  "result": "0x1" // 1
}
```

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

```bash
curl https://mainnet.polygon.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockNumber","params":["0xe8"],"id":1}'

```

{% endtab %}

{% tab title="testnet" %}

```bash
curl https://amoy.polygon.validationcloud.io/v1/<YOUR_API_KEY_HERE> \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockNumber","params":["0xe8"],"id":1}'

```

{% endtab %}
{% endtabs %}