Top 15 API Testing Tools in 2024

API is abbreviated to Application Programming Interface which mainly aids in embedding content more quickly from different websites. API testing is the process of testing the API directly to determine whether or not the API is being developed and if the API meets the needs of the customer. Thus there are various API Testing tools available in the market but some of them are known for their best features.

Therefore in this article, comprehensive knowledge has been provided about API testing and the top 15 API testing tools in 2024.

What is API Testing?

API Testing refers to the type of software testing that involves the testing of application programming interfaces directly and as a part of integration testing to determine if they meet the expectations of the functionalities, performance, reliability, and security. Therefore the main use of API testing is to analyze the process of various endpoints such as databases, web UIs, web services, and so on.

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Top 15 API Testing Tools in 2024

Multiple API testing tools are used by the software for testing the APIs. Some of the top 15 API Testing tools for 2024 are mentioned below:

1. Postman

Postman is a Google Chrome plug-in which is one of the top API testing tools that is used for testing the API services. Postman mainly enables the developers to monitor APIs, debug, run requests, and automate the tests. With the help of Postman, developers can extract API data using Postman’s interface.

Key Features:

• It allows the writing of Boolean tests and also doesn’t need the use of a command line.
• Postman consists of built-in tools which provide you the ability to interact with an API.
• RAML and Swagger formats are mainly supported for designing APIs.

Check Out: Difference between RAML and Swagger

2. SoapUI

SoapUI is an API testing tool that helps the developers to easily write, integrate, and automate API tests. It provides a wide range of features for API testing needs such as automated assertion creation, API discovery, and so on.

Key Features:

• It support REST, JDBC, JMS and SOAP.
• SOAPUI allows the testers to write, integrate, and automate the tests in APIs.
• A data-driven testing feature is supported in SoapUI.

3. Apigee

Apigee is a type of crosscloud API tool which is offered by Google to manage and build the APIs. Apigee tool mainly supports creating and configuring the API packages, reports, payment gateways and integration. It is also used to tract API traffic, response times to identify the problems and error rates.

Key Features:

• It is used to handle the APIs with numerous data.
• Apigee enables the deployment and creation of the API proxies in the cloud.
• It also consist of customizable developers portal and also provide support for Node.js.

4. JMeter

JMeter is an open source API testing tool which is used for the testing of web applications, APIs and the other network protocols. The JMeter developers needs to set up a test plan in JMeter to test the APIs. It is one of the flexible tools which allows the testers to customize it according to the needs.

Key Features:

• This tool can be used with both dynamic and static resources to test the performance.
• It performs performance and load tests for a wide variety of server types.
• JMeter be used on different platforms such as Windows, macOS and so on.

5. Tricentis Tosca

Tricentis Tosca is another API testing tool which supports SOAP, HTTP and other protocols. In various aspect of software testing are incorporated to analyze the APIs and GUIs from the business perspective. Tricentis Tosca provides the functionality to test cases to make sure an effective test management process.

Key Features:

• It provides end-to-end testing by allowing API tests to run across cross-browser, mobile and so on.
• This tool helps the test managers to perform manual testing without the need to set up Tosca environments.
• It allows for sustainable automation through the use of new technologies.

6. Swagger

Swagger is an API testing tool which particularly consists of a well-organized API documentation features. It mainly consists of a library of reusable components which can be built and shared across various APIs, by reducing the amount of code. Swagger also assists the entire API lifecycle.

Key Features:

• Swagger can be seamlessly integrated into the CI/CD pipelines.
• The swagger codegen generate server stubs for any APIs.
• Smart error feedback and syntax auto-completion feature are avalaible in Swagger.

7. Rest-Assured

Rest-Assured is another API testing tool which is used to test the RESTful services in Java and it also offers several authentication methods to tests and validate a secured API. Rest-Assured also provides support to all HTTP methods but it also explicitly support multiple types of commands such as PUT, DELETE and so on.

Key Features:

• It supports the seamless integration of the Serenity automation framework.
• Rest-Assured offers several authentication methods to test and validate secured API.

8. Assertible

Assertible is a API testing tool which was designed to help the software developers and the QA teams to automate the API testing and monitoring. Assertible offers an advanced test automation features and it can be executed after deployment as well.

Key Features:

• It consist of monitoring and Collaborated API Testing features.
• It can integrate with Slack, GitHub, Zapier and many more.
• Assertible supports conditional logic, webhooks and dynamic variables.

9. ACCELQ

ACCELQ is another famous API testing tool which is used for automation and it mainly focuses on the design and the maintenance aspects of the test automation lifecycle. It is a cloud based testing platform which provides a codeless approach. It also provides test automation and test management type of capabilities.

Key Features:

• It helps in automating API testing without writing a single line of code.
• It seamlessly integrate between business processes and corresponsing APIs.
• This tool automatically generate test cases using AI.

10. ReadyAPI

ReadyAPI is a no code API testingplatform which allows the developers and testers to perform performance, security and functional testing of APIs. It is designed to support both SOAP APIs and RESTful APIs and also provides an user-friendly interface for testing, generating and designing reports on the API tests.

Key Features:

• ReadyAPI helps in performing security and performance testing is done.
• Different integration for continous deployment and integration can be done using ReadyAPI.
• It supports multiple type of API types such as REST, SOAP and so on.

11. Ping API

Ping API is an API tetsing tool which is used to inspect the request and response the data of any HTTP API call. It allows the creation of test cases by using the JavaScript or the CoffeeScript, schedule tests and run the tests. By using Ping API tests can be scheduled every minute.

Key Features:

• It is used for monitoring and testing the APIs.
• It supports script writing.
• PingAPI validates the CRUD process.

12. Hoppscotch

Hoppscotch is another API testing tool. Hoppscotch consist of an user-friendly interface to test and debug the APIs. It is mainly available as a desktop and website application. It can also be used in Windows, Linux and macOS.

Key Features:

• With the help of this tool it can quickly and easily develop tests and debug the API requests.
• Hoppscotch doesn’t require to create an account to use it.
• It supports a variety of HTTP requests types.

13. Airborne

Airborne is a API testing tool which is used by the testers for testing the REST APIs and it also consist of Ruby-based RSpec-driven framework for the API automation testing. Testing team can use Airborne tool to meet the needs since it is an open source and a free tool.

Key Features:

• Airborne is compatible with Rack applications.
• Testers needs to remember a few key toolsets to use this tool.
• It is also compatible with APIs witten in Rails.

14. Pyresttest

Pyresttest is a python based API testing tool which is used to test the RESTful APIs and it is also known as micro-benchmarking tool. Pyresttest supports JSON and YAML confirguration files for tests.

Key Features:

• With the help of this tool developers can easily deploy due to its minimal dependencies making it usefu for smoke testing.
• It develops full test scenarios by generating and validating mechanisms.
• No coding skills are needs in Pyresttest.

15. Karate DSL

Karate DSL is a API automation testing and load testing platform which will test the scenarios for the API based BDD which has never been easy to develop This tool is specifically designed for the automated API testing.

Key Features:

• It provide powerful assertion capabilities.
• The users can reuse the payload data.
• No coding knowledge is needed.

Conclusion

API testing has become one of the popular part in the process of software developement. These API testing tools are developed to meet the requirements of the developers. Therefore in this article a detailed knowledge has been given about the API testing and the top 15 API testing tools which are used by the software developers in 2024.

FAQs

What is API testing ?

Application testing is the type of software testing which validates the Application programming interface and the main purpose of API testing is to check if the software is working as needed or not.

Why API testing is use?

API testing is mainly used by the software developers or the testers to test the application and meets the necessary needs of the customers and the business.

Name the top API testing tools?

Some of the most popular and mostly used API testing tools are- SoapUI, JMeter, Ping API, Ready API, Assertible, Swagger, Apigee and so on.