Alexis Kestler
Hey there! APIs are the lifeblood of modern apps, but they can fail without warning. Monitoring APIs is critical for any business that relies on them.
From personal experience, I‘ve seen unmonitored APIs cause massive headaches like angry customers, revenue losses, and teams working overnight to fix things. Not fun at all!
The good news is there are some fantastic tools now that can help you stay on top of API issues before your users notice them. In this comprehensive guide, I‘ll introduce you to the top 15 API monitoring tools I highly recommend based on thorough research and analysis.
Let‘s get started!
Why API Monitoring Matters More Than Ever
With businesses relying on apps and APIs more than ever before, API monitoring has become absolutely crucial.
Here are some key reasons why it‘s a must:
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Prevent nasty surprises – Unmonitored APIs can fail silently until users start complaining. Monitoring helps you detect issues proactively before users are impacted.
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Deliver awesome user experiences – Smoothly performing APIs ensure your app is fast and reliable for users. Monitoring helps you catch performance problems early.
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Resolve issues quickly – With monitoring, you can identify and debug problems rapidly. This reduces mean time to resolution and improves incident response.
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Identify problems before releases – Monitoring helps you catch API bugs and performance regressions during new releases before they impact users.
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Monitor vendor APIs – Be alerted quickly if third party APIs you rely on have downtime or degrade in performance.
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Validate performance SLAs – Monitoring helps you validate that APIs meet expected SLAs around uptime, latency, error rate, etc.
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Understand API usage – Monitoring provides insight into API traffic patterns, usage trends, frequent users, etc. so you can optimize APIs.
According to a Catchpoint study, 93% of organizations have suffered damages due to API performance issues. Yikes!
Proper API monitoring helps you avoid these costly problems.
Must-Have Capabilities for API Monitoring
When evaluating solutions, look for these essential API monitoring capabilities:
API Request Tracking
- Track detailed info about each API request like URL, duration, status, headers, params, etc. Gives visibility into API usage.
Error Detection
- Detect API runtime errors like timeouts, exceptions, validation failures, HTTP 5xx. Critical for reliability.
Performance Monitoring
- Measure and monitor API response time, latency, throughput. Ensure APIs meet speed benchmarks.
Uptime Monitoring
- Regular health checks to monitor if APIs are up and available. Critical for availability.
Alerting
- Configurable alerts for performance, errors, downtime etc. Get notified before users complain.
Visualization
- Charts to visualize API metrics like response time, throughput, uptime. Quickly spot anomalies.
Functional Testing
- Simulate user scenarios & workflows to validate APIs work as expected. Catch business logic errors.
Distributed Tracing
- Trace transactions across services in microservices architectures. Essential for complex systems.
Load Testing
- Stress test APIs under varied loads to gauge performance. Validate capacity limits.
Real User Monitoring
- Monitor real production user sessions to identify bottlenecks. Super insightful.
The Top 15 API Monitoring Tools of 2022
I‘ve compiled this list of the top API monitoring tools based on extensive research, reviews, and product analysis against the criteria above. These are my top recommendations:
1. Postman
Postman is the most popular API testing tool with over 17 million developers using it. It provides comprehensive API building, testing and monitoring.
Key Features:
- API request builder, visual test designer
- Monitor performance, errors, downtime
- Threshold-based alerts
- Automated API test runs
- Seamless CI/CD integration
- Usage plans from free to enterprise
I like how complete Postman‘s API monitoring capabilities are while still being easy to use even for less technical teams. The free plan is quite generous making Postman a great choice to get started.
2. Runscope
Runscope provides enterprise-grade API testing and monitoring for API-first organizations.
Key Features:
- API traffic monitoring, performance analytics
- Alerts via Email, Slack, PagerDuty
- Distributed tracing across services
- Schedule automated API test runs
- Integrations with GitHub, CircleCI, AWS
- 14-day free trial
Runscope is used by leading companies like Adobe, Twilio, and WePay to monitor business critical APIs. It‘s very robust for large scale API implementations. Integrations with developer tools is a nice plus.
3. Assertible
Assertible simplifies API testing and monitoring with its intuitive visual interface. It‘s tailored for QA teams.
Key Features:
- Visually build API tests without coding
- Monitor response time, uptime, errors
- Alerts via Slack, Microsoft Teams
- Schedule automated API tests
- GitHub integration
- 14-day free trial
Assertible makes API monitoring highly accessible even for less technical teams with its graphical no-code interface. It has smart context-aware alerts and comprehensive GitHub release flow integration.
4. API Fortress
API Fortress is an end-to-end API testing and monitoring platform with robust automation capabilities.
Key Features:
- Auto-generate tests from API specs like OpenAPI
- Continuous automated API testing
- Load test APIs for performance
- Alerting for API issues
- Seamless CI/CD integration
- Microservice support
API Fortress accelerates testing by auto-generating API tests from commonly used spec formats like Swagger. Load testing is another useful specialty and it works nicely for monitoring microservices.
5. Pingdom
Pingdom provides website, API, and application uptime monitoring and alerting for businesses. It has an easy to use interface.
Key Features:
- Real-time monitoring dashboard
- Flexible alerts for downtime and slowness
- Worldwide monitoring locations
- Notifications via Email, Slack, Teams
- Affordable pricing plans
Pingdom makes it easy to get started with essential API and app monitoring capabilities for a small business without complex setup. It has global monitoring locations which is useful for internet companies.
6. Checkmk
Checkmk provides unified infrastructure, application, and API monitoring with robust alerting capabilities.
Key Features:
- Monitor application performance metrics
- Measure API response times, uptime, traffic
- Customizable dashboard builder
- Threshold-based alerting
- Infrastructure monitoring included
- Open source and self-hosted options
Checkmk is nicely flexible allowing self-hosted and SaaS deployment. Including infrastructure monitoring on top of application and API checks provides helpful complete visibility.
7. Appoptics
Appoptics (owned by SolarWinds) offers an affordable and easy to use APM solution for monitoring distributed apps and APIs.
Key Features:
- Monitor API endpoints for performance and errors
- Distributed tracing across services
- Anomaly detection alerts for unusual API behaviors
- Custom metrics and dashboard builder
- Integrates with Grafana, ELK, Splunk
- Infrastructure monitoring add-on
Appoptics provides great value by packing powerful APM capabilities like distributed tracing into an easy to use and fairly priced solution. Nice flexibility to integrate with other tools.
8. Dynatrace
Dynatrace provides full-stack application and infrastructure monitoring with advanced analytics and automation.
Key Features:
- Monitor web, mobile, API metrics
- Distributed tracing
- AI-powered advanced analytics
- Metric baselines and anomaly detection
- Custom dashboards and reports
- Automated root cause analysis
Dynatrace offers truly advanced APM capabilities powered by AI and ML. Things like automated anomaly detection and root cause analysis help teams stay productive.
9. New Relic
New Relic leads the APM market with powerful capabilities like distributed tracing for visualizing across services.
Key Features:
- Monitor API performance and errors
- Visual distributed transaction tracing
- Custom dashboards for key API metrics
- NRQL query language
- Programmable alerts
New Relic is renowned for its great UX. For API monitoring, distributed tracing support is a killer feature for microservices along with programmable alerting.
10. Elastic APM
Elastic APM allows monitoring of applications, servers, and API transactions. It seamlessly integrates with the Elastic stack.
Key Features:
- Monitor API response times, throughput, errors
- Distributed tracing
- Pre-built Kibana dashboards and reports
- Anomaly detection machine learning
- Painless Elasticsearch scalability
Elastic APM makes it easy to monitor and analyze APIs and apps at scale by building on top of the proven Elastic platform. Kibana dashboards are a nice bonus.
11. Sematext
Sematext provides full-stack application, infrastructure, and API monitoring. Its synthetic monitoring includes browser clickpath tracking.
Key Features:
- Monitor REST, GraphQL, gRPC APIs
- Measure API response times, uptime, errors
- Distributed transaction tracing
- Real browser experience monitoring
- Customizable dashboards
- Anomaly detection and alerting
Sematext has very flexible API monitoring capabilities covering REST, GraphQL, and gRPC APIs. Client-side browser monitoring powered by real browsers is unique and useful.
12. Akamai API Monitor
Akamai API Monitor provides enterprise-grade API monitoring integrated into the Akamai Intelligent Edge Platform.
Key Features:
- Monitor API traffic, performance, errors
- Real-time alerting and analytics
- Intuitive web UI for configuring tests
- Leverages Akamai‘s global edge network
- Monitor SLAs and contractual obligations
- Enterprise-scale with proven reliability
For large enterprise API implementations, Akamai API Monitor offers true global scale monitoring leveraging Akamai‘s edge platform. Real-time stream processing provides actionable insights.
13. APImetrics
APImetrics offers API monitoring with global coverage across over 80 locations worldwide and flexible real-time alerting.
Key Features:
- Monitor API uptime, latency, errors
- Real-time configurable alerts
- Distributed global monitoring points
- Time breakdown across network, server, app
- Easy setup and use
- 14-day free trial
APImetrics makes it straightforward to get started monitoring APIs across a global footprint.Nice visibility into time spent across network, server, and application layers.
14. ManageEngine Applications Manager
ManageEngine Applications Manager provides unified web, mobile, and API monitoring at an affordable price point.
Key Features:
- Monitor REST and SOAP APIs
- Measure response times, traffic, errors
- Customizable dashboards
- Automated API testing
- On-premise or SaaS deployment
- Integrates with third-party tools
For basic API monitoring needs, ManageEngine Apps Manager provides great value. It covers REST and SOAP-based APIs with automated testing and customizable reporting.
15. Axway API Gateway & API Manager
The Axway API Gateway provides full lifecycle API management including monitoring, analytics, and monetization capabilities.
Key Features:
- Monitor API usage, health, performance
- Microservices support
- Analyze API traffic, response times
- Enforce policies on API usage
- Monetization and billing metering
- Audit trails for compliance
Axway covers the full spectrum from API design through monitoring including advanced capabilities like monetization and compliance auditing trails. An enterprise-scale solution.
Get Started Keeping Your APIs Healthy
I hope this guide gives you a comprehensive overview of the leading API monitoring tools available and makes it easier to pick the right solution for your needs!
APIs are complex and failures happen. But with the right monitoring solution, you can catch issues rapidly before customers are ever impacted.
My top recommendation is to start with Postman or Assertible if you‘re just getting started. They‘ve got generous free plans and are easy to get running quickly.
If you need advanced capabilities like service maps, distributed tracing, or global monitoring scale, Dynatrace, New Relic, and Akamai are industry leaders.
Feel free to reach out if you have any other questions! I‘m always happy to help. Here‘s to keeping your apps running smoothly. 👍
