API latency performance graph

API testing
& Performance Analytics

A complete tool for all your API test and monitoring needs

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Intelligent Real-Time API Testing and Monitoring for developers and enterprises

API test and performance tool community


Get real-time API performance metrics for the services that you use and follow. Understand reliability, uptime, latency and the quality.n. Join our community, add new tests and access our database. Use our historical data to pick the right service for your app or product. Tell me more >>

Developer API testing


Test the APIs you use. Understand how fast and reliable they are and debug them quickly. Schedule tests and alerts for the services your apps depend on and be warned when things go wrong. Use our database to pick the best performing service for your needs. Tell me more >>

Enterprise API test and Performance tool


Schedule tests on the APIs you depend on or deliver. Get alerted to slow downs or problems before your customers tell you. Provide third party tables and charts of performance to give additional assurances to your users. Tell me more >>

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Get 30 days of Pro service free and schedule up to 100 private tests per hour. No credit card required. After 30 days you can continue or use our free version and join our community.

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Client and Partner Snapshot



We use the APImetrics platform to measure performance for our developer APIs from customer/developer perspective….. Ed Schmidt – Director Developer API Program AT&T



Radius is proud to partner with APImetrics to deliver our API Performance Monitoring Solution … performance is an essential element for capitalizing on the growth of the Internet of Things¬†. Anders Brown – Managing Director

Enterprises contact us for a free Group Account trial. >> Contact Us