API Testing Services
We will introduce you to the main processes of API testing and tell you how to use software API testing in your company to improve the development process and guarantee the quality of the product.
What is API?
An application programming interface is a list of protocols, rules, and definitions developers use to create and integrate application software into existing systems and platforms. An API is a boundary between objects that interact. Developers use the interface by sending a request and receiving a response. We offer high-quality API testing services to ensure the reliability and security of your software. Our professional testers are skilled in API testing. We are ready to build a software API testing system on your project to ensure your application is reliable and stable.
What is API testing?
API testing is a process in which test requests are sent to a server, and the system responses are analyzed.

API testing to smooth the development workflow
API testing allows us to test new features from the backend developers even before the UI is ready. Thus, API testing helps to identify and correct errors on the backend without the need to correct the consequences of these errors on the front end.

API testing services based on testing types
We can offer a review of different types of API software testing to help you get more information and better understand how to test API effectively.
API Performance Testing
API performance testing assesses the performance and consistency of an API under normal and high - load conditions, measuring its stability and speed through simulations. We use tools like Gatling, Jmeter, and K6 for this type of testing.
API Security Testing
Testers use API security testing methods to prevent potential attacks and malicious actions. QA performs unauthorized access to the server to ensure the protection of user information. API testers use tools like Burp Suite, Acunetix, and Restler-Fuzzer when doing this type of work.
API Integration Testing
API integration testing studies the relationship between different system modules. Productivity and the provision of quality services directly depend on effective integration. We use such tools as Postman, Runscope, Checkly, Karate, and others to implement these tasks.
API Automation Testing
In automated API testing, we use test scripts to check the reliability and high functionality of the API application in the project. This type helps to significantly speed up the search for errors and improve the quality of the final product. Popular automated API testing tools include Postman, SoapUI, and Rest-Assured.
API Manual Testing
Manual API testing is a process in which requests are sent manually by QA engineers, not scripts. Skilled testers write queries, integrate and test the API, and make necessary changes to address flaws.
Achieve software reliability & security with API testing
Usually, to check data accuracy, schema, data type, order, completeness, HTTP status codes, and error codes should be verified. This helps to identify and correct possible errors before operating the product. API software testing also aids in ensuring software security, allowing you to identify and fix potential errors while exchanging data between different system components. This may include input validation, SQL injection protection, access rights checking, API security techniques, etc.

Our Approach
We perform API testing on different devices, operating systems, and browsers. If any errors do happen, that might cause the program hacking. APIs are often complex, with many different parameters, endpoints, and possible responses that require special skills for testing. Luxe Quality helps companies build high-quality products by ensuring integrated APIs meet application functionality, reliability, performance, and security standards.

API testing benefits
The benefits of API testing include identifying and rectifying interface errors that can adversely impact user experience and interactions with applications and services. Therefore, the following main advantages of using the software testing API should be listed.
It is vital to provide accurate data transfer in the appropriate format when interacting with external services through API. API testing ensures uninterrupted data communication, detects errors and enhances data security.
A convenient and exciting feature for API developers and testers is that API software testing allows access to the application without a user interface. That is, a permit is obtained from the kernel. This helps to save time as testing can be done simultaneously with development.
API testing saves developers time since testing can be started before the UI is implemented. It not only speeds up development workflows but also allows you to avoid future errors, significantly reducing development costs.
API Testing Tools
In our work, we use a comprehensive set of tools for API testing because each provides a range of capabilities necessary for testers.
Postman
SoapUI
Runscope
Jmeter
Checkly
BurpSuite
API Automation testing frameworks
Frameworks are used during many development and testing stages because they significantly speed up and help the developer or tester. Generally, a framework is a set of tools, libraries, and rules for creating applications. You can list many frameworks for automated testing, such as:
SuperTest
TestCafe
Pact
Playwright
Rest-Assured
Karate
Cypress
Our Recent Projects

Magora
Country: United Kingdom
Platforms: Mobile
Implementation time: March 2022 - Sept 2022 + is still supported
About project: Magora is a Web & Mobile Development Company that offers digital services to businesses across a broad range of industries.
- UI/UX, Localization, Microservices, Capability, and others Manual testing;
- Automation E2E testing TypeScript + Webdriver.io + Appium + BrowserStack

Adtron.io
Country: Germany
Platforms: Web
Implementation time: Nov 2021 – Jan 2022
About project: Adtron.io is a company that offers a wide range of opportunities to optimize the production of digital advertising and increase its productivity.
- Manual, Functional, Automation, Usability, Performance testing;
- Automation testing: JS + TestimIO

Property eye
Country: Netherlands
Platforms: Web and Mobile
Implementation time: Feb 2022 - present
About project: PropertEye is a smart all-in-one app that allows a private real estate investor to find, buy, rent, and manage suitable investments.
- Regression, Smoke, Sanitary Manual testing;
- Automation Functional testing: Java + Selenium + Cucumber
Client’s feedback
Frequently Asked Questions
When should you implement API Test Automation?
What problems arise when Automated API Testing?
What are the standard metrics when Testing API?
Best tools for Testing API?
Want to know more?
- Emailinfo@luxequality.com
- OfficePoland, 61-623 Poznan, ul. Wilczak, 12
Connect with us
Our friendly team would love to hear from you.