Your Apps Have Evolved. Your API Monitoring Should, Too.
As applications have grown to encompass ever more functionality, versatility, and connection, they’ve moved from monolithic to more modular, service-based architectures. This more distributed nature of new applications means they often rely on several external third-party services, backend integrations, and cloud APIs spread across the Internet and largely outside the control of the business that owns the application.
Most applications today, even for something as small as placing an item in your cart, rely on a vast underlying ecosystem of web services and platforms distributed across the Internet to do their job—typically via a REST API. ITOps and DevOps teams, to deliver a reliable and high-performance digital experience, should be enabled with the capability to measure and test critical workflows and backend interactions to external API endpoints. And to do that, you need an API monitoring tool that can deliver clear metrics on API performance beyond just uptime, downtime, and latency.
Adaptive API Visibility for Your Modern Applications
ThousandEyes provides ITOps and DevOps teams the API visibility they need to address performance thresholds and reachability issues for API calls across every composite application service and multi-service interaction. With our SaaS API monitoring service, you can perform API testing on third-party APIs for various use cases that impact application performance and, thus, the end user experience.
Hop-by-hop Visibility Across the Internet and External Networks as if You Owned Them
- Cloud vantage points from 200+ cities around the globe provide instant insight into the app experience
- Visibility into distributed services dependencies, including where they are being served from and by whom, and how they impact overall service delivery
- Visibility into external conditions, such as outages, that could negatively impact a called service your application relies on


A Common Operating Language Between DevOps, NetOps, and Service Providers
- Real-time, historical, and multi-service snapshot views of API reachability and performance allow you to gain a comprehensive understanding of your environment—helping you select the best APIs for your web applications
- Path visualizations provide clear evidence of issues along API service delivery paths
- Interactive sharelinks offer an easy way to escalate issues with providers and internal teams and optimize response times
Insight From the End User’s Perspective Across Complex API Workflows
- Adaptive API Monitoring provides flexible synthetic testing that emulates backend application interactions with API endpoints
- Iterative and conditional queries capability facilitates functional testing of workflow in relation to user experience. e.g. if a user executes a search will the system return a response in a timely manner.
- Validation of API response content enables a comparison of content variation between a CDN and origin server, providing an automated approach to determining caching issues.

Featured Blog Posts

Introducing Adaptive API Monitoring

How To Isolate App Experience Issues Without the Finger-Pointing
Why ThousandEyes?
Visibility To Monitor API Reachability
See into your digital supply chain to monitor API reachability and protect app functionality.
Clear Evidence To Resolve Issues Swiftly
Work with providers to resolve user-impacting issues with clear evidence for reduced MTTR.
Powerful Insight for Complex Workflows
Observe complex workflows with multiple API interactions and understand how it affects application experience.
Explore ThousandEyes
Network & Application Synthetics
See how API Monitoring can address visibility challenges impacting modern applications.