Creating URL for Monday Webhook Integration

Hello, I was following the Introduction to GraphQL API Webinar (Introduction to GraphQL API | monday.com webinars - YouTube).

I would like to test the cross-board-automations tool in my Monday.com account. I created a URL using ngrok to use with Webhook. However, I will lose my ngrok URL when I close out terminal on my computer. Is there a way to create a URL that Monday.com can use without my terminal staying open?