Hi,
I recently wanted to integrate automated domain and SSL monitoring into a couple of my personal projects. I checked RapidAPI hoping to find an API that would handle background monitoring for me, but almost everything available was a "one-off" checker, endpoints where you have to manually make a request to get the status right then and there, rather than something that monitors in the background and alerts you (which is what I wanted, I'm lazy...).
Since I couldn't find what I needed, I decided to build my own headless monitoring API. I plan to use it as the backend monitoring engine for my future projects (basically monitoring all of my projects), but I’ve also made it publicly available in case it’s useful to anyone else. It also has a generous free tier.
What it does
Instead of just checking a domain on-demand, you register a monitor once with a webhook URL. The API runs background checks on a schedule and pushes alerts to your webhook if something goes wrong. And yes, the one-off checks are included as utility, but the heavy weapon is the monitoring stuff, it's what you want to use in the free tier as well, since the (daily) alerts don't count as API calls.
