Best REST API Monitoring Tools

API monitoring is something all companies should be doing to ensure their software, and web applications are not just functioning, but functioning efficiently.

We’ll breakdown each software’s strengths and weaknesses, as well as their price and compatibility, to ensure your choice has your needs covered.

Here is our list of the best REST API Monitoring Tools:

  1. Loggly EDITOR’S CHOICE Best all-round option for REST API monitoring. Loggly blends an excellent user interface with enterprise-level altering and proper monitoring features at a price that is tough to beat.
  2. Sematext Synthetics (FREE TRIAL) A testing system that runs APIs periodically to ensure that they are working. Tests are performed from several points on the globe.
  3. Site24x7 Website Monitoring (FREE TRIAL) A package of services that test website performance and monitor availability while also tracking the performance of supporting applications and frameworks plus APIs. This is a cloud-based service.
  4. ManageEngine Applications Manager (FREE TRIAL) Fully feature application manager that is built to encompass all of your organization’s systems, cloud applications, and services under one simple no-nonsense dashboard.
  5. AlertSite API monitoring and testing tool that allows you to create tests and instant alerts by clicking on elements on your site or application.
  6. Postman Simple and powerful REST-based API monitor used by over 10 million developers.
  7. API Fortress Allows for both on-site and on-premise solutions. Give you the capability to save and replay your tests across different applications.
  8. AppDynamics Utilizes node-based network mapping to provide live API statuses and enterprise-level reporting.
  9. API Science Uses a full-featured REST API and boasts a very quick onboarding time.
  10. Dotcom-Monitor SSL certificate monitoring solution, flexible alert integrations, and uses volume-based pricing determined by the number of targets you have.
  11. Bearer Features automatic anomaly detection, and a simple two-minute install, and is easy to use.
  12. Uptrends Provides over 209 monitoring locations, an internal API testing feature called Private Checkpoint, and a step editor for easy workflow visualization.

The Best REST API Monitoring Tools

1. Loggly (FREE TRIAL)

Loggly Dasboard

The Loggly API monitor leverages the SolarWinds cloud network to monitor your app’s performance data and entire system activity across the entire stack. Loggly’s clean dashboard allows you to quickly recognize problems and eliminate them before they start impacting your services.

The dashboard is fully customizable but comes with pre-built views to monitor your services KPIs and usage statistics. Loggly really begins to shine in larger, more complex environments with it’s graphing and time-series data. In just a few clicks you have a bird’s eye view of your most-used services, API errors over time, and about a dozen or so other usage statistics.

When it comes to collaboration, Loggly leads the way with its simple dashboard sharing. This feature ensures everyone is on the page during dev meetings quickly and efficiently. In the sharing options, you can set the controls to manage who can edit and manage the overlays.

As Loggly monitors your environment it begins proactively scanning through your logs. Outside of standard alerting, Loggly has built-in anomaly detection which learns what normal patterns look like over time and bring any deviations to your attention. This is especially useful for tracking down suspicious events and fixing problems that otherwise wouldn’t have triggered an alert.

You can try Loggly and all of its features on a 14-day free trial. Loggly has a flexible four-tiered pricing plan that can fit most if not all environments. The single-user version of Loggly is a completely free tool, and the small business package starts at $79.00 (£64.70) per month for three users.

Key features:

  • Proactive alerting and easy to filter logs
  • Collaborative custom dashboards for intuitive dev meetings
  • Anomaly detection
  • Flexible pricing
  • Easy to read graphical reporting


SolarWinds Loggly is great for proactive monitoring and troubleshooting using logs. DevOps integration and data reporting make this one of the most robust & perfect tools on the market. It’s fast and scalable for any size organization.

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OS: Cloud, Browser interface

2. Sematext Synthetics (FREE TRIAL)

sematext Synthetic Monitoring metrics

Sematext is a package of system monitoring tools that are delivered from the cloud. Being an external service, testing from several servers around the world is possible. Businesses that want to test how their websites and new features appear to users in different locations through this feature.

The synthetic modeling feature of the Sematext system will repeatedly run the APIs in the site through browsers or even send HTTP requests to isolate testing of specific APIs over and over again. If an error is encountered in the performance of the API, an alert gets raised, notifying the system administrator of the monitored website.

The API checks can be calibrated to repeat on failure just to work out whether the error that was first encountered was a transmission problem or if the API itself is faulty. This double-check reduces the number of false alarms raised by the synthetic modeler.

The Sematext service is charged for by subscription with rates starting at $29 per month. There are two plans called Standard and Pro and there is also a Pay-As-you-Go option that costs $2 per HTTP monitor or $7 per browser-based monitor. All three plans are available on a 30-day free trial.

Key features:

  • HTTP or browser-based checks
  • Pay-as-you-go option
  • Multiple test launch locations

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3. Site24x7 Website Monitoring (FREE TRIAL)

Site24x7 Website Monitoring

Site24x7 Website Monitoring has many website testing features but it has many more functions that make it a great choice for those looking for an API monitor. The system also monitors servers and applications and it doesn’t matter where those servers are or where the applications are resident.

This monitoring system creates an application stack mapping that identifies the dependencies between applications and services. This stretches down to the resources of the supporting servers. The hosting servers don’t need to be in the same location in order to be included in the server monitoring functions of the Website Monitoring tool.

REST APIs often provide access points to microservices that are notoriously difficult to monitor. The Website Monitoring system is able to test the availability of those microservices. If you are tracking problems with the performance of your mobile apps or websites, the fact that a microservice has stopped working could give you the reason for that problem.

The reassurance of API performance is a great support system for DevOps teams that need to know the availability of black-box functions during bug fixing and testing. The Website Monitor is able to support the development of sites and mobile apps.

Site24x7 is a subscription service and it is available in four editions: Starter, Pro, Classic, and Enterprise. You can get a 30-day free trial to test whether it will work well for your business.

Key features:

  • Monitoring of website and services
  • Availability checks on APIs
  • Application stack showing dependencies
  • Server resource monitoring

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4. ManageEngine Applications Manager (FREE TRIAL)

ManageEngine Applications Manager

ManageEngine Applications Manager makes REST API monitoring extremely simple. You won’t find any overly complicated options or fancy features, this proper monitoring tool is perfect for those who just need to see the data.

In a simple chart, you can monitor and examine your service’s uptime, processing time, and name resolution speed in one dashboard. Applications Manager utilizes OAuth 2.0 for authentication across endpoints, which means fast and secure insights into your API transactions.

Although the UI isn’t the most intuitive on our list, you can still expect powerful features such as anomaly detection, root cause analysis, and SLA management. ManageEngine Application Manager does a superb job of giving you a holistic view of all of your organization’s applications and cloud environments at a top-level view. This same level of detail is even carried over in the APM phone app which is available for both iPhone and Android.

You can download and trial the software completely free for 30 days. Pricing for ManageEngine Applications Manager starts at $945.00 per year, per user.

Key features:

  • Full product suite focused on managing and performance testing all cloud-based applications for larger environments
  • Intuitive phone app for both iPhone and Android that gives you powerful monitoring on the go
  • Faster API testing tool and authentication with OAuth 2.0
  • Advanced reporting, live status view, and SLA management

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5. AlertSite

AlertSite Alerts Templates dashboard screenshot

AlertSite provides some of the most comprehensive REST API monitoring on the market. AlertSite has a unique and flexible approach to monitoring. Instead of being bogged down by a sea of alerts, AlertSite utilizes technology that monitors both the API layer as well as the UI for functionality, application performance statistics, and availability.

With clear application performance metrics at your disposal, you won’t have to play detective to determine if you’re getting another false alert again. AlertSite API monitoring solution lets you create alert monitors straight from a GUI interface without any coding needed.

DejaClick, one of my favorite features in the product, allows you to select the elements on the site you want to monitor in just a few clicks. DejaClick pulls the API data collection from the backend and begins the monitoring process seamlessly. You can even use clicks from user traffic to create specific scripts on the fly, all without having to crack open a command line.

AlertSite is compatible with all modern versions of Windows. Pricing for AlertSite starts at $199.00 (£162.97) per month and scales with your monitoring needs. You can try a free one month trial of AlertSite to see if it’s a good fit for your REST API monitoring needs.

Key features:

  • Codeless monitor creation in just a few clicks
  • Monitors on both the API and UI level
  • Tracks a breadth of relevant data with immersive charts and graphs
  • Manage both reporting and SLA compliance

6. Postman

Postman WS-appView-build-menu

It should come to no surprise that Postman made it on the list. With more than 10 million developers using Postman, it’s one of the most popular REST monitoring and performance testing applications available and is compatible with Windows, macOS, and Linux systems. A large reason why Postman is so popular is due to its simple UI and ease of use. In addition to functional API testing, Postman can be a simple yet powerful way for application monitoring and services.

In just a few clicks you can create a monitor that will trigger an alert based on a number of preset or customized variables. Postman also features multi-region monitoring gives you additional flexibility and insight when it comes to monitoring your services on a global scale.

When you set up a monitor it essentially runs as a test script. When that script fails you have a number way you can be altered outside of just your dashboard and email. Postman has a wide variety of integrations and can alert you through Slack, HipChat, or PagerDuty.

Postman makes API monitoring solutions available to anyone and is fully accessible under the free plan. The free plan does have its limits and starts requiring an upgrade when you hit 200 parallel runs on a single monitor.

The good news is, Postman Team pricing starts at just $12.00 (£9.83) a month and scales with your monitoring needs. Their pricing model also contains a unique « pay-as-you-go » system which allows you to purchase 1000 API calls for $0.75 (£0.61), or 50,000 pre-purchased API calls for $20.00 (£16.38) a month. You can download the free app to get going.

Key features:

  • Free tool to use, flexible pricing for additional features
  • Simple user interface
  • Wide variety of alerting options and integrations
  • Multi-regional monitoring

7. APIFortress

APIFortress Dashboard screenshot

APIFortress provides both REST API testing and in-depth monitoring at the core of its services. Utilizing both systems will provide your services with an extra layer of protection from downtime and availability issues.

On the testing side, APIFortress has a beautiful interface that allows you to quickly create a test from an existing payload, snippet of API traffic, or spec file. Test in your own IDE, or straight from APIFortress’s click and drag GUI. APIFortress does an excellent job making their features user friendly, without cutting out features developers rely upon.

When setting up your performance monitoring you’ll have the option to save and reuse existing tests across your environment. This is a great feature that can help save time down the road, especially for larger, more intricate tests. You’ll have full control of automating your testing via the built-in scheduler, and the capability to test your services from multiple global downloaders.

APIFortress boasts some of the most detailed real-time data reporting and status pages in the industry. The reporting platform allows you to easily share critical information with your team, or historical data and SLA compliance with your clients.

APIFortress is a cloud-based network monitoring tool but can be hosted on-premise on a recent distribution of Linux. You can test-drive all of the features APIFortress has to offer for a full 30 days to see if it’s a good fit for your organization. Pricing for the cloud-based solution starts at $1500.00 (£1228.45) per year for a single user license.

Key features:

  • Enterprise-level API testing tool and monitoring
  • Cloud and on-premise service options
  • Save and reuse your test scripts across different projects
  • Highly detailed real-time and historical reporting

8. AppDynamics

AppDynamics screenshot

AppDynamics is a powerful API monitor that’s part of the Cisco product suite. You’ll all of the powerful features and insights you’d expect for a Cisco product inside of AppDynamics. The real-time data visualization is some of the best and most concise in the market. Is one dashboard AppDynamics has everything you need, and nothing you don’t.

With its node and tier-based visualizations, you can easily see where a problem is, and exactly what web services it will impact down the line. In a few clicks, you can select any node or call in progress to drill deeper down and get further information on its current status, past performance monitoring, and availability.

AppDynamics is backed with AI root cause analysis that works in the background to not only detect problems but diagnose them proactively. Appdynamics is powerful, and in my opinion best suited for larger cloud-based environments.

You can start a free 15-day trial of AppDynamics with no credit card required. Pricing for AppDynamics API monitoring starts at $3300.00 (£2702.58) a year.

Key features:

  • Enterprise-level API and cloud monitoring
  • Monitor services through node-based network maps
  • Detailed business performance data insights and reporting
  • AI-powered API troubleshooting and diagnostics

9. API Science

API Science Customer status dashboard

API Science was built specifically to serve and monitor REST-based API services. Like many of the list API monitors, you can expect a stunning interface and easy to access analytics from the reporting dashboard. API Science boasts quick and efficient onboarding, meaning less time setting up your account, and more time digging into the data that keeps your customers happy.

From the monitoring dashboard, you can quickly monitor your own APIs, as well as any third-party APIs your entire systems rely on. In addition to creating your own custom monitors, there are a number of pre-configured sample monitors to get up and running right away.

Since API Science is REST-based, you can monitor your REST API with their API giving you the flexibility and freedom to build your own custom dashboards, and integrate into custom applications and consoles.

API Science has straight forward pricing that starts at $29.00 (£23.75) per month for three users and can support up to 100,000 API calls. You can test out API Science for 30 days to see if it’s a right for your API monitoring needs.

Key features:

  • Simple and flexible pricing
  • Easy to navigate analytics and reporting
  • Fully featured REST API
  • Fast onboarding procedure

10. Dotcom-Monitor

dotcom monitor

Dotcom-Monitor provides a simple monitoring system and testing of your web-based assets and has the ability to troubleshoot REST, SOAP, HTTPS, JSON, and XML services from different parts of the globe. Dotcom-Monitor’s easy to use monitoring system allows you to set up a single monitor in about 60 seconds. Easily choose what you want to monitor, where you want the test to come from, and what browser you’d like to simulate.

Alerting options can be as flexible as you need them to be. Receive instant alerts via the custom dashboard, email, SMS, or one of Dotcom-Monitor’s many integrations.

Another useful feature is Dotcom-Monitor’s ability to monitor SSL certificate statuses with GET/POST parameters and content checks. For increased flexibility, you can tap into the platform’s XML feed to monitor and manage your agents via the API.

The features and feel of the Dotcom-Monitor platform feel like they were truly built to serve the needs of small to medium-sized businesses. With that being said, they do offer an enterprise package that offers additional features such as premium monitoring locations, private agents, white-labeled reports, and account auditing.

You can test out Dotcom-Monitor free for 30 days. Pricing starts at just $1.99 (£1.63) per target with volume discounts available.

Key features:

  • Flexible alert options and product integrations
  • Competitive pricing with volume-based discounts
  • SSL certificate monitoring
  • Enterprise-level features such as white labeling and private agents

11. Bearer

Bearer Logs

Bearer is an API monitor that has some diverse functionality to help provide automated alerts across different applications. One of my favorite features of Bearer is its simple install. With just one line of code, Bearer can be unpackaged and ready to go without any changes to the code or environment.

Quickly set up rate limits and trigger incidents defined by whatever SLA or internal requirements you adhere to. Separate dedicated dashboards keep your application monitoring easy to manage and read. You can break down your data collection into separate application metrics, or pull all of the relevant data together into a single report.

Bearer’s fast installation and ease of use make it an easy choice for anyone looking to quickly test out REST API monitoring applications.

All of Bearer’s pricing plans include error tracking, anomaly detection, and performance metrics. You can try Bearer API monitoring for free, or purchase their Pro plan starting at $49.00 per month. Pro plan includes increased log retention, 20 million API calls per month, and up to three user licenses.

Key features:

  • Separate dashboards for each application
  • Simple two-minute install
  • Easy to understand pricing model
  • Automated anomaly detection

12. Uptrends


Uptrends is an API monitoring and testing tool with a simple yet powerful step editor that lets you customize your alerts to reflect the user’s exact journey. This gives you full control of the alerts you receive and ensures that your monitoring isn’t just running a simple ping check but actually testing the steps needed to fulfill your service.

While some API monitors use virtual browsers to test websites in, Uptrends only uses real unsimulated browsers to test your web services and applications. Currently, you can test from Google Chrome, Internet Explorer, and Firefox. You can easily compare your speeds and performance data side by side with each browser to quickly find bottlenecks and opportunities to improve.

Test your APIs from over 209 different locations across the world. Uptrends also has a unique feature called Private Checkpoints, which allow you to test your APIs from behind your firewall via on-premise virtual machines. This can help identify problems internally such as DNS resolution, or LAN congestion that would otherwise not be visible from the outside.

Under the API monitoring section, you can define assertions that check for each response and ensure you’re getting the correct status codes and responses.

You also have the capability to add authentication to access and test your protected APIs in just a few steps. This mix of attention to detail combined with a drag and drop interface make Uptrends a serious contender and a great choice when looking for REST-capable API monitoring.

You can get started for free with a 30-day trial, or jump right into the Starter package for just $12.02 (£9.84) a month.

Key features:

  • API monitoring from over 209 locations
  • Simple and competitive pricing
  • Internal API monitoring with Private Checkpoint
  • Intuitive step editor for creating customized alerts

Choosing a REST API Monitoring Tool

Having a solid API monitoring system is pretty much mandatory for any organization’s environment that runs its own web services. The loss of API functionality could result in thousands of dollars of lost revenue.

While there’s clearly plenty of choices when it comes to filling your REST API monitoring needs, some tools shine brighter than others. I find Loggly to strike the best balance between usability, flexibility, functionality, and price.

AlertSite is a great runner up, with a clean user interface, multiple alerting configurations, and codeless element based testing. Not all monitors may suit your needs so be sure to take full advantage of any free trials that may be available.

REST API Monitoring FAQs

How to check the health of REST API?

Health checking functions vary depending on the API being used. The best way to track the health of a REST API is through an API monitoring tool, such as those listed in this article.

What are some good ways to track API usage?

API usage tracking functions depend on the ownership of the API you want to track. If the API is a partner tool from one of your own programs, you need to integrate access logging within the API code, writing to a log file on your server every time the API is accessed. If you have deployed an API from a utility owned by someone else and want to record how many times that piece of code is activated, you will need to associate a logfile record generating function with the triggering of the API.

What is the difference between REST API and RESTful API?

REST stands for “Representational State Transfer” and it is an architecture of application interface that is based on existing Web technologies and protocols, such as HTTP. The term “RESTful” simply means “written in the REST style.” So, the terms REST API and RESTful API are more or less interchangeable.