The term ‘API’ is widely used in the software industry and the full form of API abbreviation is Application Programming Interface. It is nothing but a collection of software that is in the form of stored procedures or functions or both. These functions are called by other software applications through an interface. Learn more about Best API Testing Tools this year.
In the API (Application Programming Interface) testing, we test the API function by simply passing a set of input parameters and compares the output result received from the API function against the required output as the response to the partner applications under test. In Agile development, the API testing fits in a short development cycle therefore, it creates a demand to automate API testing through API testing tools. Here, we will be discussing further the best API testing tools which are widely used over the year until 2018.
SOAP Sonar
It is a well-known API testing and diagnostics platform that is widely used for XML, SOAP, REST-based web services. It has the following key features.
- It supports web service functional testing.
- It can be easily integrated with Ant, Hudson, and Junit.
- It is capable to find web service vulnerabilities such as SQL Injection, Malware Threat, etc.
SOAP UI
It provides a 30 days free trial version. It is one of the most popular tools which is used for API testing in the world. It allows us to test SOAP APIs and REST APIs very easily. It has the following key features.
- It allows creating tests very quickly and easily. It also supports drag and drops features.
- It supports Powerful data-driven testing.
- It can easily load data from the database, Excel, files, etc. to simulate test data for API under test.
- The test scripts created in SOAP UI are re-useable.
- It can be easily integrated with the other 13 API management platforms.
API Fortress
API Fortress is one of the most powerful API testing as well as a monitoring tool which is used for REST and SOAP APIs. It has the following features.
- It is capable to generate comprehensive tests through a single click.
- It is a web-based collaborative tool that works within a browser without any download.
- It is easy to use and the learning curve is very small.
- It can perform single-click automation.
- It supports robust data and notification integrations.
- It can work in the clouds.
HttpMaster
It is a well-known web development tool that is used to automate web application testing including API testing. It can automate web API tests through web API calls. It has the following features.
- It supports HTTP methods such as POST, GET, DELETE, etc.
- It supports dynamic parameters composed of various data types.
- It supports advanced validation expressions.
Airborne
Airborne is an API automation testing tool that is used to test REST APIs. It has the following features.
- Here, we just need to remember a few key methods from the toolset, ruby language, and rspec fundamentals.
- It is a programming framework where automation scripts are created with the help of code written in the text file.
Apigee
The trial version can be downloaded from the given link http://apigee.com/. Apigee is a well known cross-cloud API (Application programming interface) testing tool. The tool allows us to test and measure API performance. It has the following features.
- It can design tests, monitor test, and deploy APIs.
- It can create API proxies in the cloud for test simulation.
- It can easily detect API traffic, error rates, security breaches, and response times.
APIary Inspector
Apiary is an API testing tool that enables the API monitoring during the design phase where it captures both response and request. The user can write API blueprints in the Apiary editor. It has the following features.
- It hasRole-based access control.
- We can write API blueprints in the Apiary editor.
- It allows to remove and add team member from any API design projects.
Hippie-Swagger
Hippie-swagger is an API testing tool that supports a clear assertion syntax to extend test behavior. It has the following features.
- It allows for clean printing reports.
- If swagger documentation is missing or erroneous then it fails.
- It generates accurate assertation messages.
- It is capable to validate the request, parameters, path, and responses.
API Science
API science is an API testing tool that enables the health monitoring (Private, Partner and Public), performance, and availability of web APIs. It has the following features.
- It supports REST, JSON, XML, and Oauth.
- It is capable to manage the API supply chain.
- It is powered by Javascript.
- It can provide insights into historical trends as well as spot future issues.
Karate DSL
Karate is a new API testing framework that is based on cucumber libraries. Karate DSL framework allows the testers to write and execute meaningful tests for any web service that uses a domain-specific language. It has the following features.
- It supports multi-threaded parallel execution.
- It enables configuration switching easily.
- It enables the re-use of payload-data.
- It allows using user-defined functions.
- Even non-programmers can write test scripts easily using Karate DSL.
- It allows generating reports just like the standard Java project.
HP QTP (UFT)
It is a functional testing tool that can also be used for API testing as it provides an extensible framework through which we can test a user interface. It is capable to test technologies such as Databases, Webservices, JMS, etc. We can convert SoapUI tests into UFT (QTP) API tests by using the API test conversion tool.
JMeter
JMeter is another open-source functional API testing tool supplied under the Apache license. It can also be used for performance testing for API. It has the following features.
- It supports both static as well as dynamic resources performance testing.
- It can operate with CSV files to procure unique parameter test values.
- It has the capability to replay test results.
Ping API
Ping API is an API testing tool that allows testers to write and execute test script in JavaScript and CoffeeScript in order to test web APIs. It has the following features.
- It is capable to schedule automated tests every minute to hours.
- It can validate CRUD flow and can easily log in to Ping API.
- It allows setting request headers, URLs, and body parameters in the test scripts. Also, it can validate the response headers and body.
Tricentis
Tricentis is another well known and frequently used robust web services testing tool. It has the following Prominent API Testing features.
- It supports protocols such as AMQP, Rabbit MQ, SOAP, REST, NET TCP, TIBCO EMS, HTTPS, HTTP, JMS, etc.
- It can be easily integrated with the DevOps cycle and Agile methodologies.
- It supports model-based test automation.
- Test scripts creation and maintenance are very easy.
- It can perform end to end API testing for cross browsers, mobile apps, packaged apps, etc. very easily.
SOAtest
Parasoft SOAtest is one of the industry-leading API testing solutions in the world. It has the following features.
- It delivers maximum scalability.
- It is robust and supports flexible integration with around 200+ protocols such as TCP, MQ, FIX, EDI, JMS, etc.
- It is capable to convert UI tests into scriptless API test scenarios and hence saves our testing time.
- It supports drag and drops feature to expedite testing procedures.
Conclusion:
:The best API testing tools were discussed in detail which are widely used over the year.
