What is the best way to organize a service monitoring service?

Question

Programming

There are 5 microservices. I want to make a panel with a web muzzle so that you can clearly see their status.
It turns out that you need to write another microservice that will check their status every n minutes. And give it to the web face. The only question is how to do it right. Is it stupid to throw Json or are there any more interesting options?
The solution is planned to be cross-platform.