Most Popular API Testing Tools for 2019

Application Programming Interface Testing (API) testing is a kind of software testing that focuses on determining if the developed APIs meeting the expectations regarding reliability, security, performance, and functionality of the app. In recent years, APIs have become one of the major trends in the transformation of organizations into truly digital enterprises. As a result, it’s no wonder that more and more companies who aspire to unify software development and testing, tend to favor API Testing.

“Major API Testing Tools 2019”

POSTMAN (For manual testing)

It is a rest client that started off as a Chrome browser plugin but in recent times came out with native versions for both Windows and Mac. At a high level, you can use it to send a post request to the webserver and it gives you the response back. It allows you in setting up all the headers and cookies your API expects, and then check the response when it comes back.

? Can be used for both exploratory and automated testing

? Can be run on Linux, Mac, Windows, & Chrome Apps

? Has a bunch of integrations like support for Swagger & RAML formats

? Has Run, Test, Monitoring and Document Features

? Doesn’t need to learn a new language

SOAPUI (For automation testing)

It is a headless functional testing tool dedicated to API testing, allowing users to test REST and SOAP APIs and Web Services effortlessly. Using SoapUI, users can get the complete source and build the ideal features besides these abilities:

? Create test rapidly and without difficulty with Drag and drop, Point-and-click

? Rapidly create custom code using Groovy

? Powerful data-driven testing: Data loaded from files, and databases, and Excel so that they can simulate how customers interact with the APIs

? Create complex-scenarios & support asynchronous testing

? Reusability of Scripts: security scans and load tests can be reused for functional test cases in a just quite a few steps

REST-ASSURED

It is an open-source Java Domain-specific language that makes testing REST service easier.

? Have a bunch of baked-in functionalities, which means users do not need to code things from scratch.

? Integrates flawlessly with the Serenity automation framework so that users can combine the UI and REST tests all in one framework that makes awesome reports.

? Support BDD Given/When/Then syntax

? Users don’t essentially need to be an HTTP expert

KATALON STUDIO

It is a free automation test tool that offers a common environment to create & perform UI functional, API/Web services, and mobile testing. The capability to combine UI and Business levels (API/Web services) for diverse environments (Mac OS, Windows, and Linux) has been considered a benefit of Katalon Studio. Katalon Studio supports SOAP and RESTful request with several types of commands (POST, PUT, GET, and DELETE) with parameterized potential.

TRICENTIS TOSCA

?Tricentis Tosca is a continuous testing platform for Agile and DevOps. Benefits of Tricentis Tosca include:

Supports many arrays of protocols: AMQP, HTTP(s) JMS, Rabbit MQ, SOAP, REST, TIBCO EMS, IBM MQ, NET TCP

? Integrates into the DevOps & Agile Cycle

? Maximize reuse and maintainability with model-based test automation

? API tests can be used across mobile, packaged apps, cross-browser, etc…

? Reduce the time of regression testing

JMeter

JMeter (open source) is extensively used for functional API testing although it is actually created for load testing.

? Supports replaying of testing results

? Automatically work with CSV files, allowing the team to make exceptional parameter values for the API tests fast.

? Users can include the API tests in CI pipelines thank the integration between Jenkins and JMeter

? It can be used for both dynamic as well as static resources performance testing.

These tools are considered as the best API Testing tools in the market. You can utilize them according to your necessity. If you are using any other tool which isn’t listed here, do share your thoughts in the comments section below.