Below, we’ve compiled the list of the best and most commonly used API testing clients to look into to test your REST API in 2022. The app itself is a client , and you need it to communicate with a server to transfer data. This communication is possible using HTTP requests since the client sends api testing best practices HTTP requests to the server. Eggplant is a testing tool tailored to help enterprises across different industries to develop test scripts and handle automated API evaluation. RedwoodHQ is a simple, free, open-source API testing tool that works with different tools like Appium, Silk, etc.

Seamless integration is possible with the Serenity automation framework. Apigee offers a free trial to users so that they can check its compatibility with specific requirements. The packages include Evaluation, Standard, Enterprise, and Enterprise Plus.

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These were some of the perfect API testing tools for users having diverse requirements. The tools mentioned above are all great for testing REST, SOAP, or HTTP APIs besides making sure that no error is caused. Rapid API is declared one of the largest and most popular automated API testing tools of today’s time. Tricentis Tosca maximizes reuse and maintainability with model-based test automation.

In the most popular software architectural style for data transfers – REST – clients make HTTP/HTTPS requests to the server. The server retrieves the requested data from the database, transforms it according to the business logic, and returns it to the client in a response format, e.g. That means it’s crucial to thoroughly verify APIs before rolling out the product to the client or end-users.

That’s all about some of the best tools to test your REST APIs and RESTful Web services. As a Java developer, I recommend you to write your test in code using RESTAssured but if you want interactive testing, curl is your best friend, particularly if you are in Linux. If you are a Windows-based GUI lover developer then Postman is your best friend. SoapUI also supports all the standard protocols and technologies which means you can use it to test all kinds of APIs. Its design and interface are also very simple that enables both technical and non-technical users to use them seamlessly. Testim is a powerful tool for API testing that makes it easy to create and execute automated tests for your API.

🌟 What are the general features of API testing tools?

Parallel execution is available for both functional tests and job queues. With its Smart Assertion feature, this tool can quickly generate bulk assertions against hundreds of APIs. Tests can be written in virtually any language that supports HTTP, JSON, or XML. Users no longer have to manually update their tests after adding new parameters or changing the API response as a result of the Sync feature.

Bringing continuous testing into Agile and DevOps is made easy with Tricentis Tosca. It is a software testing tool that supports HTTP , AMQP , SOAP , and many other protocols. In this approach, multiple aspects of software testing are incorporated to analyze GUIs and APIs from a business perspective.

Integrations with tools such as GitHub, Slack, and Zapier, among others, are possible. API tests can also be run after the application has been deployed. It allows a company or user to personalize the content and services they use the most. APIs enable a product or service to communicate with other products and services without requiring knowledge of how they are implemented. Swagger is another great tool for REST API development that you can use to document and share your REST API specification.

Katalon

Positive and negative testing is one of the methods of functional testing. The program will not run even under optimal conditions if positive test cases fail. While Microsoft Loop is not yet generally available, Microsoft has released details about how Loop can connect users and projects… Customers can choose from four packages, the first being a free personal plan. Paid plans range from $25 to $100 per month and offer tiered increases in the number of tests, test frequency and team members supported.

Available as a NuGet package, RestSharp is a popular and convenient open-source HTTP client library for .NET. Focused on communication between APIs, it ensures they are well-connected and don’t cause bugs in another API’s modules. Security, penetration, and fuzz testing are the components of the security auditing process aimed at testing an API for vulnerabilities from external threats.

Ping API

The fantastic feature of this tool is that it uses artificial intelligence to help with the test suite, execution, maintenance, and building. Furthermore, Assertible reduces the application’s bugs by giving users access to create an Automated QA system. Assertible is an open-source tool that concentrates on reliability and automation along with GitHub forms. It comes with the sync feature, which further gives users the ability to update their tests whenever changes are made to the specifications. The testing tool allows one to test reports, SOAP API testing, and create custom codes with the help of Groovy.

At a similar time, the fixed one comes with modernized functionalities, which take API testing to the subsequent stage. Restsharp is a precise API testing solution that supports building .Net APIs and then testing them with similar tools. This open-source API testing tool creates an integration between JMeter and Jenkins, allowing users to add API tests within the CI pipelines. It is one of the most lightweight tools that you would come across with a minimalist user interface. Having numerous features and functionalities, it facilitates sending and receiving of data sets with the assistance of the SocketIO server.

It’s designed to allow testing at all stages of your development cycle, with an interface that lets anyone probe your API’s functionality. The best API automation and programming tool used by testers for testing REST APIs is Airborne. https://globalcloudteam.com/ It has a Ruby-based RSpec-driven framework for API automation testing. Airborne version 0.3.5 was released in July 2020 with minor bug fixes. Testing teams may use it to meet their requirements since it is a free and open-source tool.

• An API specification is a document or standard that describes how to build or use such a connection or interface.
• Unirest has its documentation page that lists all of the REST methods available.
• Please use ide.geeksforgeeks.org, generate link and share the link here.
• JMeter was initially developed for API load testing but can now handle performance testing as well.

Karate DSL is a unique API testing tool based on the Cucumber/Gherkin standard. It’s one of the few tools that allows users to run API test automation, UI automation, and performance in the same place. Thanks to the Selenium WebDriver API and other language-specific client libraries, Appium works with more programming languages than most API testing tools. Paw is an API testing tool designed specifically for devices that run on macOS. With this tool, you can test APIs, compose requests, generate client code, and export API definitions, among many other things.

#05 REST-assured

Developed by Intuit, this tool is specifically designed for automated API testing. Users do not need to possess programming skills in order to use this tool. However, having some basic knowledge of HTTP, JSON, XML, XPath, and JsonPath is an asset. JMeter is an open-source tool by Apache for analyzing and testing the performance of software applications, products, and services. Initially designed to perform load testing, this tool is now popular for performing functional API tests. There is a wealth of API testing functionality, along with extra features to enhance the process.

API testing automation tools are becoming increasingly important for developers and programmers as APIs become an integral part of software development. REST API is an API that follows architectural principles set for building applications, while an API simplifies the process of data exchange between applications and web services. Katalon Studio is a free API platform for creating and sending HTTP requests to servers. The tool helps automate web APIs, UI functionality, and mobile testing. Postman was first introduced as a Chrome plugin which later evolved into one of the best REST API testing tools. If you are looking for manual testing or want to test an API without an integrated dev environment, Postman is the best choice.

SoapUI

To that aim, the solution should be user-friendly and visually appealing while providing sufficient functionality to carry out complex tasks without scripts. REST-assured is an open-source tool used for testing REST services. In performance testing, stress testing entails progressively increasing the number of virtual users to determine when the API begins to throw errors, slow down, or stop responding. To prevent API vulnerabilities and weaknesses, security testing is critical. API security testing ensures APIs work as designed and can only do what they are intended to.

There’s also an enterprise upgrade for $759 per license per year with all the capabilities of Katalon Studio plus additional features. SoapUI comes in two variants, SoapUI Open Source, a free tool, and ReadyAPI, its paid tool. SoapUI Open Source is capable of everything described above, but ReadyAPI provides more means to construct, deploy, and monitor your tests. It is easy to deploy because of its minimal dependencies, making it useful for smoke testing. ReadyAPI also allows you to remove dependencies during testing and development. In order to guarantee reliable test execution, ACCELQ adapts intelligently to unexpected changes in the application.

Apiary allows monitoring the API during the design phase by capturing both request and response. It allows the user to write API blueprints and lets the user view them Apiary editor or Apiary.jo. The most widely popular tool for API testing in the world, SoapUI allows you to test REST and SOAP APIs with ease – as it has been built specifically for API testing. Enables end-to-end testing as API tests can be used across mobile, cross-browser, packaged apps, etc. Supports all types of REST, SOAP requests, SSL client certificate. Supports parallel execution of functional tests and job queuing.

API Reliability and Integration Tests

The summit of the pyramid, on the other hand, is slower because manual testing scenarios primarily do it. 7 API security testing best practices, with checklist APIs are an increasingly common attack vector for malicious actors. Use our API security testing checklist and best practices to protect your organization and its data. Protect APIs against attacks with this security testing guide API security cannot be overlooked.