Best API Monitoring Tools 2026: Compared
Comparing the best API monitoring tools in 2026 — from simple endpoint health checks to multi-step synthetic tests. Find the right fit for your stack.
Consuming Rate-Limited APIs: Handling 429s in Production
How to consume rate-limited APIs safely: read RateLimit headers, handle 429s with backoff, and monitor throttled dependencies before they break your app.
mTLS Explained: How Mutual TLS Works and What to Monitor
What mutual TLS (mTLS) is, how two-way certificate authentication differs from regular TLS, and how to monitor client certs so they don't cause outages.
Circuit Breaker Pattern: Failing Fast to Stay Resilient
How the circuit breaker pattern stops a failing dependency from cascading into a full outage: the closed, open, and half-open states, and what to monitor.
Retry Storms: Exponential Backoff and Jitter Explained
Why naive retries turn a blip into a retry storm, and how exponential backoff, jitter, and retry budgets stop a system from amplifying its own failures.
Idempotency Keys Explained: Safe Retries for APIs & Webhooks
What idempotency means, how idempotency keys make retries safe, exactly-once vs at-least-once delivery, and how to build reliable APIs and webhooks.
GraphQL API Monitoring: Resolver Performance, Errors, and Uptime
GraphQL monitoring needs more than a 200 response. Learn how to monitor resolver errors, query latency, and endpoint uptime with actionable alerts.
API Uptime Monitoring & Health Checks Guide
Your API is the backbone of modern applications. Learn how to monitor API endpoints, set up health checks, and catch failures before your users do.