Can we setup alerts using REST API, with action to send a POST request at a webhook?

We want to setup alerts using REST API. https://docs.splunk.com/Documentation/Splunk/latest/RESTREF/RESTsearch#saved.2Fsearches described how we can do it with POST request to /saved/searches. But this only talks about email as action. Can we have action as call to a webhook when the alert is set up through REST API.