# Multicall

SANDSHREW provides the sandshrew\_multicall method for batch calls against the SANDSHREW supported namespaces.

Multicall functionality is exclusive to mainnet and testnet calls currently. Support for the  signet.sandshrew\.io endpoint is ongoing.

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

```sh
curl https://mainnet.sandshrew.io/v1/<developer key> \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0", 
    "method": "sandshrew_multicall", 
    "params": [
      ["esplora_block-height", ["817974"]], 
      ["esplora_blocks:tip:height", []]
    ], 
    "id": 0 
}'
```

{% endtab %}
{% endtabs %}

<details>

<summary>Params</summary>

**Works with any RPC call supported by SANDSHREW**

The parameters to sandshrew\_multicall are a list of 2-element lists, where the first element is the RPC method you want to call, and the second element is a list of parameters you wish to supply with the RPC method.

</details>

<details>

<summary>Response</summary>

```
{
  "id": 0,
  "result": [
    {
      "result": "000000000000000000006fc88a9a6f7ef0e4b64143482076f3755faef3bfcbd5"
    },
    { "result": 842608 }
  ],
  "jsonrpc": "2.0"
}
```

</details>