As mentioned above by @AdrianBell27622
Make modules allow webhooks shown below.
In Zapier you can also fire a webhook on a form submission.
You can achieve the same result in Knack by sending a mailhook to Make.
This gives even more scope and flexibility as it can start a scenario on a form submit for a new record, or a record edit, even and action link.
Anywhere you can send an email in Knack you can start a Make scenario. 
When you create a webhook in Make, you have the following options for knack event:
- Record created
- Record updated
- Record deleted
Mailhooks - Knack Database
Get a Record - Integromat
