MonitoringApril 10, 2026· 12 min read
The Complete Guide to API Uptime Monitoring in 2025
API downtime costs an average of $5,600 per minute according to Gartner. Yet most engineering teams still rely on reactive alerts. This guide walks you through building a proactive monitoring stack — from synthetic checks to real-user monitoring.
Moving Beyond Reactive Alerts
Relying solely on user reports or internal error logs means learning about outages after your customers do. A proactive monitoring stack checks your systems externally, catching issues before they escalate.
About the Author
L
Lena HoffmannEnterprise Security Lead
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