# Keep-alive

<mark style="color:green;">`GET`</mark> [`https://fast.circular.fi/health`](https://fast.circular.fi/transactions)

Use this endpoint to check the status of the Fast Engines and keep your connection alive.

**Headers**

<pre class="language-json"><code class="lang-json"><strong>{
</strong>    "Content-Type": "application/json",
    "x-api-key": "your-api-key"
}
</code></pre>

**Response**

{% tabs %}
{% tab title="200" %}

```json
{
    "jsonrpc": "2.0",
    "id": null,
    "result": {
        "status": "healthy",
        "service": "fast-rust-api",
        "version": "0.1.0"
    }
}
```

{% endtab %}
{% endtabs %}
