21 Best API Testing Tools That are insanely good

You can also use these tools to interact with your REST API during the development phase for quick tests. Here are some of the tools and services to help your api testing best practices business grow. Dredd reads the API description and validates step-by-step if the API replies to the responses as per the description in the document.

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. Provide insightful test report dashboards of all testing stages for better monitor and collaboration across teams. Supports all types of REST, SOAP requests, SSL client certificate. Reads and stores values from API response, easily incorporating them into the testing flow.

Rest-assured

By using this tool, test managers can perform manual testing without needing to set up Tosca environments. Provides end-to-end testing by allowing API tests to be run across mobile, cross-browser, and packaged apps. Postman allows the writing of Boolean tests and does not require the use of a command line.

So, before you start knowing about the tools to build your API and test it, let’s understand what an API is and how it fits software development and testing. Assertible provides easy and reliable API uptime and performance monitoring. It continuously tests web services and emphasizes automation and reliability. In October 2019, Assertible announced Encrypted variables, a new feature that provides a new option for storing tokens, passwords, and secret fields necessary for API testing.

Postman

You can develop APIs of your choice in a tech stack with server templates and client libraries. You will also get an entire format of design APIs and define resources before writing code. API testing includes SOAP web services and REST APIs with XML or JSON message payloads.

The API testing tools available today can be overwhelming, so how do you decide which one is the best? Don’t worry, we’ve compiled a list of the best API testing tools that will expedite your work. Let’s recap the basics of API testing before we check out the top 15 API testing https://globalcloudteam.com/ tools in 2021. By following the BDD methodology and having a set of test scenarios written in Gerkhin syntax, implement the tests against the actual implementation of the API. SOAPSonar is an API testing and diagnostics platform for SOAP, XML, REST-based web services.

RapidAPI Testing is a RapidAPI product that provides a functional API testing solution for creating and managing comprehensive API tests from development to deployment. Logs Monitoring Collect, parse and analyze log data in real-time from log files, servers, applications, networks, and devices. If you don’t curl yet then you are missing out big time, not just REST APIs the tool allows you to send any application which is dependent upon HTTP.

These tools act like sniffers, using machine learning to automatically find patterns and connect relationships among different services as users interact with the applications. APIs are the basis of modern software development, especially as more and more teams move away from monolithic applications and begin adopting a microservices approach to software development. The number of API testing tools on the market for you and your team to try out and select will probably take forever. That’s why we have listed a few key considerations for you to keep in mind. There are various API testing tools available in the market offering various different features. REST APIs provide a flexible, lightweight way of integrating computer applications.

REST-Assured

As of December 2020, JMeter version 5.4 was released, which provides bug fixes and core enhancements. REST API Testing is open-source web automation testing technique that is used for testing RESTful APIs for web applications. The purpose of rest api testing is to record the response of rest api by sending various HTTP/S requests to check if rest api is working fine or not. Karate DSL is a unified framework for API automation testing, mocks, performance testing, and load testing. Karate, on the other hand, has all the step definitions written for developers so we don’t have to worry about writing them. Developed by Intuit, this tool is specifically designed for automated API testing.

• You can even pipe the data in and then edit it interactively in your text editor prior to PUT, PATCH, or POST.
• Casual gaming company Big Fish Games uses Postman as a collaborative tool.
• You can let your developers integrate third-party API in your business application or platform to have the same benefit.
• With curl, you can easily compose and send HTTP requests and analyze their responses.
• Hence, you need to opt for some REST Clients for testing REST APIs.
• By using this tool, test managers can perform manual testing without needing to set up Tosca environments.

It is one of the best api testing tools which allows inspecting HTTP API call with a complete request and response data. For any failures, the user gets a notification through email, slack or Hipchat. SoapUI is a functional testing tool that is the world’s leading solution for SOAP and REST testing. You can quickly and easily create and execute automated functional, regression, and load tests with SoapUI’s user-friendly graphical interface and enterprise-class features.

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This enables us to test a wide variety of Request combinations and in turn test different combinations of core business logic. Allows testing of all applications with HTTP interface, including CGI, JSP, AJAX, SOAP, SERVLETS, REST, AND XML web services. Testing API becomes a much-needed part of the complete software ware testing. It forms the second layer of testing and requires almost 20% of testing efforts. It can also be used to send data to the server, for example, customer information, file upload, etc. using HTML forms. An API or Application Programming Interface is a set of programming instructions for accessing a web-based software application.

Learn how to serialize and deserialize JSON responses using REST Assured library with example codes and Live API. This is by far my favorite kind of insomnia 😆 I’ve loved using the @GetInsomnia app during this week’s @LambdaSchool Node.js sprint to test my API. Connect directly to Git providers to always be in sync with design changes and enable a GitOps pipeline with Inso, the Insomnia CLI tool. Supports encrypted variables that enhance API testing security practices. Offers sync features that automatically update tests with every change in API. Ability to reverse proxy requests, increasing its utility considerably.

But it’s also powerful enough that you can create more integrated solutions if you wish. It provides a behavior-driven development -like, domain-specific language that makes creating API testing in Java simple. It also has a bunch of baked-in functionalities, which means you don’t have to code things from scratch. This open-source Java Domain-specific language enables testing REST services more simply.

Best Tools for REST API Designers, Developers, and Testers

This is why developing and testing an API strategically is crucial. The API development and testing tools mentioned above will help you do that so you can deliver the best services to the end-users and improve their overall experience. With its main objective being the testing of API services, it has expanded its services to include native versions of Windows/Mac. There are built-in tools to interact with an API, collections to automate tests, debug, monitor APIs, and workspaces for collaboration.

In order to guarantee reliable test execution, ACCELQ adapts intelligently to unexpected changes in the application. Testing and generating reports are supported in the same way as other Java projects. Support validation of HTTP responses with turn-key assertions including JSON Schema validation and JSON Path integrity checks. It offers several authentication methods to test and validate a secured API. It can be used with both dynamic and static resources to test performance.

With SmartBear’s ReadyAPI platform, you can test RESTful, SOAP, GraphQL, and other web services for functionality, security, and load. A few of the tools available with this intuitive platform include API functional testing, API performance testing, API security testing, and API & Web virtualization. By using this platform, you can guarantee the quality of all web services from end to end. It will be possible for you to design data-driven and comprehensive API tests as well.

REST API Testing – Basics

Take your testing to the next level of functional constraints to analyze systems under stress in real-time. You can also test your system properly to define API tests and simulate the traffic at the desired speed. Test your API smarter and faster with data-driven testing and save money and time with the properly designed, tested and built API.

❓ What is API?

Katalon Platform brings a hassle-free API testing platform for testers with or without prior programming experience. Leverage artificial intelligence to create robust test scenarios in less time than other tools. The power of Taurus is that it allows you to write your tests in YAML, a human-readable and editable approach that lets you describe a test in a simple text file. You can actually describe a full-blown script in about 10 lines of text, which allows teams to describe their tests in either a YAML or JSON file. Although JMeter was created for load testing, many folks also use it for functional API testing.

I’ve not seen this functionality available in any open-source API tools as yet, but don’t let that prevent you from getting started. Knowing the basics of API testing will help you, both now and in an AI-driven API future. All things security for software engineering, DevOps, and IT Ops teams.

Step 1: Compose the API Contract, OAS file and Test Scenarios

It allows access to full source code and to create their preferred features. Supports the creation of comprehensive functional API tests and data-driven functional API tests. There are mainly 4 methods involve in REST API automation testing like GET, POST, Delete, and PUT.

It is an open-source platform that offers Java domain-specific languages to make it easier to test REST services. Essentially, API testing identifies bugs, inconsistencies, or deviations from an API’s expected behavior. By providing them with the necessary tools and functions, an API allows two programs or applications to communicate with each other. Upon receiving the request from the user, it drives it to the service provider who will generate a result, and it will send back the result to the user. The list contains both open-source and premium web API testing tools. Postman has a rich interface that many REST clients don’t have, making it easy to use.