> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.signl4.md).

# SIGNL4

Use the SIGNL4 node to automate work in SIGNL4, and integrate SIGNL4 with other applications. n8n supports sending and resolving alerts with SIGNL4.

On this page, you'll find a list of operations the SIGNL4 node supports and links to more resources.

{% hint style="info" %}
**Credentials**

Refer to [SIGNL4 credentials](/integrations/builtin/credentials/signl4.md) for guidance on setting up authentication.
{% endhint %}

## Operations <a href="#operations" id="operations"></a>

* Alert
  * Send an alert
  * Resolve an alert

## Templates and examples <a href="#templates-and-examples" id="templates-and-examples"></a>

[Browse SIGNL4 node documentation integration templates](https://n8n.io/integrations/signl4) or [search all templates](https://n8n.io/workflows/)