API Uptime Monitor
Monitor your API endpoints for uptime and performance
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Add an API endpoint above to start monitoring its uptime and performance.
What Is API Uptime Monitoring?
API uptime monitoring is the practice of continuously checking whether your API endpoints are accessible and responding correctly. Downtime can happen at any time due to server failures, network outages, or deployment errors. Without monitoring, you might not know your API is down until users start complaining. An uptime monitor tracks your endpoints at regular intervals, records response times, alerts you to failures, and helps you maintain a high availability SLA.
Our API Uptime Monitor lets you add multiple endpoints, configure custom check intervals, and view real-time status for each one. Each monitor displays uptime percentage, average latency, total checks performed, and a visual history of the last 48 checks. When an endpoint goes down, the tool logs an incident with a timestamp and duration so you can track how often failures occur and how quickly they are resolved.
How to Use the Uptime Monitor
To start monitoring an API, enter its URL in the input field at the top of the page and click "Add Monitor". The tool immediately performs an initial health check and begins tracking the endpoint. You can add as many endpoints as you need, each with its own monitoring dashboard. Click "Check Now" on any monitor to perform an immediate health check, or remove monitors that are no longer relevant.
The uptime history chart shows the last 48 check results, with green bars representing successful responses and red bars indicating failures. The height of each green bar reflects the response time, giving you a quick visual indicator of performance trends. The incidents section logs every downtime event so you can analyze patterns and identify recurring issues.
Why Uptime Monitoring Matters
Studies show that even 99% uptime means nearly 3 days of downtime per year. For businesses that rely on APIs, every minute of downtime can translate to lost revenue, damaged reputation, and frustrated users. Regular monitoring helps you detect issues within minutes rather than hours, enabling faster response times and minimizing the impact on your users. Combine uptime monitoring with performance testing to ensure your APIs are not only available but also fast and responsive.