Checkly

Unclaimed Editor reviewed

API and synthetic monitoring for developers

API Tools Testing & QA Monitoring

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4.5(34 across the web)

FreemiumVisit Website

TL;DR - Checkly

Checkly is a synthetic monitoring platform for testing APIs and web applications from global locations
It runs automated checks, validates uptime, and alerts teams before users experience issues
Free tier with 50K check runs/month, paid plans from $30/month

Pricing: Free plan available

Best for: Growing teams

4.5/5 across review platforms

Pros & Cons

Pros

Good synthetic monitoring
Playwright based
API monitoring
Good DX
Fair pricing

Cons

Per-check pricing
Learning curve
Limited regions free
Some features complex
Smaller than Datadog

Ratings Across the Web

4.5(34 reviews)

Ratings aggregated from independent review platforms. Learn more

Key Features

API monitoringSynthetic monitoringPlaywrightMulti-locationCI/CDModern stack

Pricing Plans

14-day Free Trial

Free

Hobby

10K check runs
5 checks
1 min frequency

Team

$40/month

Starting

50K runs
50 checks
30s frequency

Calculate your cost View full pricing

What is Checkly?

Editorial review

Checkly monitors APIs and websites from a developer perspective. Write checks in JavaScript, run them from global locations, and get alerted when things break-synthetic monitoring that fits developer workflows. Tests run on Playwright for browser checks. CLI and CI integration support testing as code. Dashboards show performance over time. Development teams wanting monitoring they can version control and run in CI choose Checkly for synthetic monitoring built for how developers work.