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items:
  - /api/app-store/n8n/1.png
  - /api/app-store/n8n/2.png
  - /api/app-store/n8n/3.png
  - https://docs.n8n.io/_images/integrations/builtin/credentials/cal/getting-api-key.gif
---

<p>You can use these credentials to authenticate the following nodes with Cal.</p>
<ul>
  <li>
    <a target="_blank" href="https://docs.n8n.io/integrations/builtin/trigger-nodes/n8n-nodes-base.caltrigger/">Cal Trigger</a>
  </li>
</ul>
<h2>Prerequisites</h2>
<h2>Using API keys</h2>
<p>Your API requests are authenticated using API keys. Any request that doesn't include an API key will return an error.</p>
<ol>
  <li>Log into your Cal account.</li>
  <li>Click on <a target="_blank" href="/settings"><strong>Settings</strong></a>.</li>
  <li>There you will find the API keys section which allows you to generate a key for use. More information on this can be found on the <a href="https://developer.cal.com/api/authentication">Cal Authentication</a> page.</li>
  <li>Use API key in your Cal trigger node credentials in n8n.</li>
</ol>
