How to Monitor API Health with Blackbox Exporter and Prometheus

Ever had an API go down silently, only to realize it after users started complaining? I’ve been there—more times than I’d like to admit. That’s why I now rely on Prometheus and Blackbox Exporter to proactively monitor API health. In this guide, I’ll walk you through setting up Blackbox Exporter to probe endpoints, track latency, and alert you the moment something goes sideways. Why Blackbox Exporter? Blackbox Exporter is like having a dedicated API watchdog.