Why I Moved My Uptime Monitoring Into the Terminal

Every monitoring tool I've used makes me leave my terminal to click through a web dashboard. I spend my day in VS Code and deploy with git push, but to add a health check I need to open a browser, log

What monitoring tools do you use ?

What API monitoring tools do you use?

I'm looking for an open source API monitoring solution, something like Runscope.

Do you use any error tracking tool on your Apps?

If so which one? What advice can you give to get the most of it?(feel free to put in a comment the one you use if it is not one of the options)

Tools for monitoring WebSocket in Node.js. What do you use?

The most tools for monitoring applications only pretty work with Requests. Are there any other tools with better approach for WebSockets?

What's the best, quick and neat alternative to New Relic for monitoring your systems?

I wanted to try out New Relic, but seems too costly. What's a dead simple solution for monitoring production systems without using New Relic?