Honeypot fields can be used inside of forms to prevent automated bot submissions. They're not the best way to prevent spam / bot submissions, however they can be effective on low-traffic sites.

Forma provides a handful of special fields that change the way your form behaves. To add a honeypot to your form, add a hidden input field with the name _forma.

<form>
    <input type="hidden" name="_forma" />
</form>

Since this field is hidden, a regular human user should never submit a value. If the server detects a value present for this field, it will prevent the submission from being created and return a 401 Unauthorized error.