Top 5 API Testing Tool : REST And SOAP


Top 5 API Testing Tool : REST & SOAP

There are many open source as well as a licensed tool available in the market which greatly supports API Testing. In this article, I am going to list down the Top 5 API Testing tool (according to me and in no particular order) which is widely used in the current market.


1)    Rest Assured


Rest Assured is an open-source Java-based Domain-Specific Language (DSL) that allows you to write powerful, readable, and maintainable automated tests for your RESTful APIs. an open-source Java-based Domain-Specific Language (DSL) that allows you to write powerful, readable, and maintainable automated tests for your RESTful APIs. 

Some of the features of rest assured are:

·        It's a free and completely open-source tool.
·        It is easy to use and write test cases as it uses gherkins language and support   notations like Given/when/Then which makes test easily readable.
·        It is easy to integrate it with continuous integration/continuous development tool as it is based on java library and supports all frameworks like JUnit and TestNG.



2)    Katalon Studio


Katalon Studio is a free and robust automation solution for API, Web, and Mobile testing.

This tool includes a full package of powerful features that help overcome common challenges in web UI test automation.

·                Its free and has a large active user community.
·                It has very simple and easy to use GUI.
·                Easy to use and install for technical as well as non-technical users.
·                It contains a lot of inbuilt keywords which reduces the effort of creating a test from scratch.
·                It supports BDD cucumber format.
·                It has built-in integration with CI Tools like JIRA, Jenkins, qTest, and   Slack. 


3)    Karate

Karate is the open-source tool to combine API test-automation, mocks and Performance testing into a single, unified framework. You can easily build (or re-use) complex request payloads, and dynamically construct more requests from response data. The payload and schema validation engine can perform a 'smart compare' (deep-equals) of two JSON or XML documents, and you can even ignore dynamic values where needed.

Some of the important features are 

• Java knowledge is not required and even non-programmers can write tests
• Scripts are plain-text, require no compilation step or IDE, and teams can collaborate using Git / standard SCM.
• Based on the popular Cucumber / Gherkin standard - with IDE support and syntax-coloring options.



• Comprehensive support for different flavors of HTTP calls.
• Support for multi-threaded parallel execution, which is a huge time-saver,  especially for HTTP integration tests.
• Built-in test-reports compatible with Cucumber so that you have the option of using third-party (open-source) maven-plugins for even better-looking reports.

4)    Postman


Postman is perhaps the most famous and widely used tool in the market for API Testing.

Some of the features of Postman include:

·        Powerful, simple to use GUI.
·        Saved history of API requests.
·        Unlimited collections, environments, tests, and sharing.
·        Automated testing with collection runner.
·        Web-viewable, detailed API documentation.
·        Flexible API monitoring, for uptime, performance, and accuracy
·        Mock servers, to support split-stack development

 5)    SOAP UI


SoapUI is the world's leading Functional Testing tool for SOAP and Web Service testing. With its easy-to-use graphical interface and enterprise-class features, SoapUI allows you to easily and rapidly create and execute automated functional, regression, and load tests. In a single test environment, SoapUI provides complete test coverage - from SOAP and REST-based Web services, to JMS enterprise messaging layers, databases, Rich Internet Applications, and much more

Some of the Powerful features include:

·        Simple, powerful easy to use GUI.
·        Supports all types of testing.
·        Supports Data-Driven Test
·        Multi environment support
·        Supports integration with all major CI Tools.


Apart from the above mentioned there are few more famous API Automation tools like JMeter, TOSCA, HTTPMaster, UFT is available and widely used in the market.




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Author:

My Name is Ankur Jain and I am currently working as Automation Test Architect.I am ISTQB Certified Test Manager,Certified UI Path RPA Developer as well as Certified Scrum Master with total 12 years of working experience with lot of big banking clients around the globe.I love to Design Automation Testing Frameworks with Selenium,Appium,Protractor,Cucumber,Rest-Assured, Katalon Studio and currently exploring lot in Dev-OPS as well. I am currently staying in Mumbai, Maharashtra. Please Connect with me through Contact Us page of this website.

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