# eth\_getUncleCountByBlockNumber

**Parameters**

`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/).

```javascript
 params: [ 
  '0xe8', // 232 
 ]
```

**Returns**

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

**Request example**

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

```bash
curl https://ethereum.api.watchdata.io/node/jsonrpc?api_key=your_api_key
-X POST \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_getUncleCountByBlockNumber","params":["0xe8"],"id":1}'
```

{% endtab %}

{% tab title="Postman" %}

```json
URL: https://ethereum.api.watchdata.io/node/jsonrpc?api_key=your_api_key
RequestType: POST
Body: 
{
    "jsonrpc":"2.0",
    "method":"eth_getUncleCountByBlockNumber",
    "params":["0xe8"],
    "id":1
}
```

{% endtab %}
{% endtabs %}

**Result**

```javascript
{
  "jsonrpc": "2.0",
  "id": 0,
  "result": "0x0"
}
```