We provide

API & Server Side Test Automation Services

At Zapple Tech, we focus on solving all the key tasks of your project and providing top-notch UX for the project. We use only the best techniques and technical complexes, giving you the finest experience on the market.

Why API & Server-Side Test Automation With Us?

End-to-end testing process
End-to-end testing allows us to evaluate the entire software for dependencies, data integrity, and connectivity with other systems, interfaces, and databases to replicate a production situation.
Infrastructure selection
Our staff will make sure that all testing procedures work on any appropriate device. With our experience in application testing services, we can select the most suitable device for your company’s needs.
Test the toolset of your choice
We work with software testing teams to help them manage, track, and maintain their tests. The tools we choose provide continuous integration and reliable delivery processes.
Transparent and efficient reporting
Our clients can check the status of their campaigns at any moment. We take the toolkit and set it up so that they can see the report at any time in the reporting system of your choice.

Why Test Automation With Us?

6 years in automation testing services
A vast test automation toolkit, including Selenium, Apache JMeter, Ranorex, REST-assured, etc.
Development of custom test automation frameworks.
Expertise in a variety of industries, including e-commerce, financial, healthcare, travel and accommodation.

Benefits of API & Server-Side Test Automation Service

Get a faster time to market
Automated mobile app tests have a short execution time and no unnecessary delays.
Improve test coverage
We automate thousands of manual tests simultaneously to maximize test coverage.
Eliminate human error
Humans make mistakes, but automated tests repeat the same steps over and over again.
Lower the costs
Manual processing of large datasets is much more expensive than mobile app test automation services.

Why Is API & Server-Side Test Automation Important?

The importance of conducting API tests is significant if you want to get a perfect product. This testing helps to ensure that all data access goes through the API, simplifying further security and compliance testing and certification. As a result, you can at any time expand the app for new business needs

Our team of qualified QA engineers keeps up with the latest innovations and the best API testing tools and follows desktopmobile, and web API testing best solutions. We apply modern testing tools and methods to guarantee that your software works flawlessly.

We know how to test API on a high level, as well as provide API documentation writing services. Our team can compose an accurate reference manual with details on functions, classes, return types, arguments, examples, and tutorials on how to effectively use and integrate with an API of your software.

Industries We Work With

Here are the industries we automate tests for. Haven’t found your field in the list? Leave us a message, and we will tailor a solution for you.
Media and Entertainment
Software Development
Business Solutions
Travel and Accommodation

What Our Customers Say

What We Test

Business scenarios
We check if your business workflows and modules work together correctly throughout the entire services layer.
Internal and private APIs
Since other systems will be trying to integrate with your application, we will make sure they can do it seamlessly.
Third-party integrations
We run automated tests to see if a third-party service that communicates with your application returns the right data.
Our automation strategy covers vigorous testing of security scenarios, including authorization, input validation, output encoding, and HTTP status codes.

API & Server-Side Test Automation Services We Offer

Industry Expertise

Years of experience with automated tests and TestOps
Test automation engineers and experts working on projects
Completed test automation and infrastructure projects
Solutions developed in a variety of business domains

How We Work

At ZappleTech, our testers implement data-driven testing for APIs, recognizing their pivotal role as data hubs in numerous applications. This approach enhances test coverage and accuracy. We primarily utilize API testing services for:
Сontinuous Software Development Release Cycles
Test In Parallel With The Development
Logging Calls For Each API Function

Web App Testing Tools and Technologies

The Way We Solve Challenges

Adapting to changing project requirements
We swiftly adjust to evolving project needs at any stage, ensuring alignment with your timeframes, budget, and client expectations.
Fostering effective collaboration in project teams
We cultivate seamless cooperation among project participants, facilitating swift issue resolution and fostering a harmonious workflow.
Ensuring testers' profound domain knowledge
Our testing experts possess extensive domain expertise spanning healthcare, banking, retail, manufacturing, and more, enabling us to address industry-specific challenges in every project proactively.
Addressing cross-browser compatibility challenges
Recognizing the diversity of user environments, we rigorously test your web solution across various browsers and operating systems, mitigating unexpected behaviors and enhancing user adoption.
+40 projects

Join Satisfied Clients

Working with Zappletech, you will have a quick engagement in 1-2 weeks, an organized senior-level engineering team with a product development mindset, and savings of up to 30% of the budget, time, and efforts compared to hiring and managing your in-house development team.
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Unlocking Agility: How API Testing Services Empower Development Teams

The software development environment is constantly changing, and one of its stars nowadays is the Application Programming Interface (API). APIs are the essential link between automatically communicating and exchanging data among many applications and different platforms. APIs not only provide the glue that integrates separate software elements. They also allow developers to pick the services and functionalities they want in their software and accelerate the development process to higher user satisfaction.

While it is true that APIs are of high importance to modern software development, there are still some problems to be solved, like the ones related to the stability, reliability, and safety of APIs in software development. Given that APIs function as a communication bridge between disparate components of the software world, deficiencies, and security vulnerabilities in their design can lead to system failures, data breaches, and a lousy user experience. This is where the role of the system testing through the API JavaScript comes in.

Role of API Testing Services in Empowering Development Teams

API testing lead the development teams to embrace the agility principle and succeed during their software creation process. These platforms cover a broad range of facilities, including frameworks, tool sets, and automation, which are needed to simplify API testing and complete tasks that, in the end, are repetitive. They also offer the API quality assurance team actionable data on performance.

One of the perks of API testing is that it often automatically tests the process using API test automation. Utilizing automation software and frameworks, developers can make their test scripts reusable, scale up the number of tests to be executed in parallel, and produce detailed progress reports, decreasing manual effort and fast-tracking the feedback loop.

In addition, the availability of API testing allows teams to adopt an agile approach to software development, enabling them to integrate tests into the continuous integration/continuous deployment (CI/CD) pipeline smoothly. Automating the API tests allows the development teams to identify and fix issues in the initial part of the build and complete the deployment process. This results in rapid iteration of features and higher-quality software that they develop with a greater degree of confidence and efficiency.

Briefly put, API test automation drives software development to be agile in a way that accelerates the delivery cycle through iteration, frequent releases, and delivering value to end users. Engaging API testing guarantees development teams’ success by overcoming modern application building bottlenecks, containing risks, and ensuring the safety and reliability of the developed APIs in a fast-paced and competitive market for product development.

Understanding API Testing

API testing services encompass a range of tools, platforms, and solutions tailored to support the comprehensive testing of Application Programming Interfaces (APIs). These services are designed to validate APIs’ functionality, reliability, security, and performance across various stages of the software development lifecycle. They offer diverse features and capabilities to simplify the API testing process, automate repetitive tasks, and provide actionable insights into API quality and behavior.

Different Types of API Services Available

Functional Testing

These services focus on verifying the functionality of APIs by testing individual endpoints, input parameters, response payloads, and error-handling mechanisms.

Security Testing

Security-focused API testing services evaluate APIs’ robustness against common security threats, such as injection attacks, authentication bypasses, and data exposure vulnerabilities.

Performance Testing

These services assess APIs’ scalability, reliability, and responsiveness under different load conditions, helping identify performance bottlenecks and optimize API performance.

Load Testing

Load testing services simulate concurrent user interactions with APIs to measure their ability to handle a high volume of requests without degradation in performance or availability.

Mocking Services

Mocking services allow development teams to create virtualized versions of APIs for testing purposes, enabling faster, more isolated testing of API-dependent components.

Each type of API testing service serves a unique purpose in ensuring the quality and reliability of APIs, and development teams often utilize a combination of these services to achieve comprehensive test coverage.

Importance of API Testing in the Context of Agile and DevOps Methodologies

API testing, for instance, becomes the key to agility in the case of Agile and DevOps, where continuous delivery occurs. In agile development, where the development process of a product is done bit by bit and then released, rapid feedback from the testers is encouraging. The developers can compare the new changes and updates to locate the problems quickly and early in the product development cycle. By API testing incorporation into the CI/CD pipeline, development teams can maintain complete automation by executing the tests through this pipeline. This ensures API changes are validated thoroughly before the deployment, avoiding regression or breakdown in the existing functioning.

DevOps environments usually have key principles of collaboration and automation. API testing services help integrate development and operating teams smoothly. Built-in automation of the testing phase and live visualization of API metrics about quality and performance give teams more opportunities to work jointly with cross-functional abilities in the fastest release cycle without worrying about low-quality software.

An API testing solution is a driving force in Agile and DevOps initiatives by allowing developers to validate frequently produced. With the help of this, they can rapidly iterate, frequently release, and remain in control of an ever-changing and rapidly changing environment. With its incorporation, an organization can create a culture of continuous improvement and innovation as a business value that leads to market agility and business competitiveness, which has become a vital property of the digital environment.

Benefits of API Testing Services

Improved Software Quality

The main advantage associated with API testing is their ability to support the software NQA through early fault detection and elimination. Via a well-thought-out approach that involves testing API endpoints, parameter requests, and payloads, these services complement the testing process by finding the faults of APIs, such as their functionality, reliability, and security, before major consequences upstream. Comprehensive testing and validation in the general development stage allows the developer teams to uphold that APIs act in the prescribed manner, disclose constant results, and adhere to industry standards and acceptable practices. API services stand out because they deal with problems earlier in development when they are much easier to solve than in the release process. This leads to a platform with high stability, reliability, and security and, therefore, to a better experience for the user and a lower risk of post-release problems.

Faster Time-to-Market

Automated API testing accelerates the development process by providing rapid feedback on changes and updates, reducing time-to-market for software products. API services enable development teams to automate the execution of test cases, validate API functionality, and generate actionable insights into API quality and performance metrics. By integrating API testing into the continuous integration/continuous deployment (CI/CD) pipeline, development teams can streamline the testing process and ensure that API changes are validated thoroughly before deployment. This enables faster iterations, shorter release cycles, and quicker delivery of new features and enhancements to customers. With automated API testing, development teams can iterate rapidly, respond to changing requirements, and adapt to market demands more effectively, maintaining a competitive edge in today’s digital landscape.

Enhanced Collaboration

API testing facilitates better collaboration between development, testing, and operations teams, fostering a culture of shared responsibility and accountability. By providing a centralized platform for test case management, execution, and reporting, API testing services enable cross-functional teams to collaborate more effectively on testing activities. Development teams can share test scripts, collaborate on test scenarios, and track testing progress in real time, ensuring everyone is aligned on testing objectives and priorities. Additionally, API services support seamless integration with collaboration tools and project management platforms, enabling teams to communicate, coordinate, and prioritize tasks more efficiently. By breaking down silos and promoting collaboration across disciplines, API testing help ensure that testing efforts are aligned with development goals, leading to higher-quality software products and improved customer satisfaction.


Investing in API testing may be a cost-saving measure by avoiding hand-testing and lessening the likelihood of faults following implementation. Manual testing acts as an ability consuming and human; it is also prone to human errors, making it costly and inefficient, especially in agile and DevOps environments where speed and efficiency are essential. Hence, the development teams can be less occupied with the time-consuming tasks of manual testing, and thus, the replication of test cases can be accelerated. As a result, the overall testing coverage will be improved. Among others, these benefits allow for freeing valuable resources to attend to the core strategic functions. They also ensure that faulty items are drained from production in the first place, reducing the chances of rework, downtime, and customer dissatisfaction. Indeed the function of these services does not only approximately identify problems that occur in the venting process but also helps to get rid of defects early on in the lifecycle, which is expensive and time-consuming when identified late in software development. In brief, integration of API testing service provisions by the development teams enables the teams to maximize testing activities, decrease testing costs, and eventually deliver software products that perfectly respond to users’ needs efficiently and cost-effectively.

Challenges and Best Practices in Implementing API Testing Services

Common Challenges Faced in Implementing API Services

Implementing API testing can pose several challenges for development teams, including:

  • Complexity of API Ecosystems: As software systems become increasingly interconnected, the complexity of API ecosystems grows, posing challenges in testing coverage and compatibility. Ensuring comprehensive test coverage can be daunting with numerous APIs from different vendors and third-party services.
  • Integration with Legacy Systems: Many organizations rely on legacy systems and technologies that may not be easily compatible with modern API testing tools and frameworks. Integrating API services with legacy systems can be challenging due to differences in protocols, data formats, and authentication mechanisms.
  • Security and Compliance Concerns: Ensuring API security and compliance requires robust testing methodologies and adherence to industry standards and regulations. However, validating API security and compliance can be challenging, especially in dynamic and rapidly changing environments.

Best Practices for Overcoming These Challenges

To overcome these challenges and maximize the benefits of API services, development teams can adopt the following best practices:

  • Comprehensive Test Automation: Developing a test automation approach that covers all the aspects of API test automation functionality would allow having a decent test plan. Hence, with automation of test case creation execution and validation, developers can build good testing coverage and processes where the results are accurate and process feedback is quicker.
  • Shift-Left Testing: Adopting a shift-left approach to testing demands the integration of testing activities we want to add in the earlier development cycle. Moving forward in the process enables the development activities to easily catch and resolve problems earlier, thus reducing the cost and effort of discussing issues at future development stages.
  • Mocking and Virtualization: These two approaches help nullify the odds of depending on external systems and services in their place, enabling development teams to test API interactions without the need for these external resources. The team can emulate many situations, including the worst-case ones if wanted. Paper-based APIs can help in that.
  • Continuous Integration/Continuous Deployment (CI/CD) Pipeline: Adding API testing in the CI/CD pipelines is inevitable for going with the easy automation and feedback infrastructure. With the help of the build and deployment process that includes constituent APIs, the development teams can guarantee rigorous testing of the API changes before deployment. This would protect the system from introducing new regressions and/or breaking the existing functionality.

Strategies for Integrating API Testing into the CI/CD Pipeline

To integrate API testing into the CI/CD pipeline effectively, development teams can follow these strategies:

  • Automated Test Execution: Configure automated API tests to run automatically as part of the CI/CD pipeline whenever changes are made to the codebase. This ensures that API changes are validated quickly and consistently, providing timely feedback to developers.
  • Version Control Integration: Integrate API testing scripts and configurations with version control systems such as Git to ensure traceability and repeatability. This allows teams to track changes to testing assets over time and collaborate effectively on testing efforts.
  • Environment Management: Manage test environments dynamically within the CI/CD pipeline to ensure consistency and reproducibility. Utilize containerization and infrastructure-as-code (IaC) techniques to automatically provision and manage test environments, reducing manual effort and ensuring test reliability.
  • Feedback Loop Optimization: Optimize the feedback loop between development, testing, and operations teams by capturing and analyzing test results in real time. Use dashboards, alerts, and notifications to give stakeholders visibility into testing progress and outcomes, enabling timely decision-making and continuous improvement.

By implementing these strategies and best practices, development teams can overcome the challenges of implementing API test automation and maximize the benefits of automated testing. They can also seamlessly integrate API testing into the CI/CD pipeline for continuous automation and feedback.

In conclusion, API services are integral to modern software development, enabling development teams to achieve agility, deliver high-quality software, and stay competitive in today’s rapidly evolving digital landscape. Throughout this article, we have explored the significance of APIs in software development, the importance of API testing in ensuring functionality, reliability, and security, and the role of API testing in empowering development teams.

Key Points

Underpinning software development today is a unifying concept captured in the acronym API. It comes from a practical imperative to connect and interact between disparate systems and ensures the utmost in connectivity. After that, we studied API testing and its significance in validating API response accuracy. This ensures they get to the desired standards and meet all requirements.

What followed was a detailed presentation on how API testing services comprise a complete set of tools and features to approach API testing service easier and faster and allow for automatic tasks and augmentation replication. The article touched upon the value added to API testing solutions, such as improved software quality, faster time to market, increased collaboration, and cost savings.

As the next step, we investigated the hindrances to API services, including the complexity of the API environment, system integration with legacy protocols, and security and information confidentiality. In this section, we highlight successful ways of addressing these challenges, such as integrating automated testing into the project and the CI /CD pipeline, shift-left testing, etc.

The value of API testing:

It certainly can be seen that application programming interface testing services are of great importance in helping development teams attain agility and provide high-quality software products. API test automation provides automatic verification, insightful guidance, and harmony among team members. This makes it possible for development teams to manage frequent releases and product quality without affecting the robustness of the APIs during dynamic and busy development processes.

Frequently Asked Questions:

What is API test automation?

API testing is a type of software testing that examines APIs directly, including their functionality, dependability, performance, and security. API testing, which is part of integration testing, tests the logic of the build architecture in a short amount of time.

What is server side automation testing?

Server-side testing is an A/B testing method in which the test variations are rendered directly from the website and then transmitted to the visitor’s device.

Why do we do API automation testing?

The goal of API testing is to ensure that programming interfaces are functional, reliable, fast, and secure. Instead of using typical user inputs (keyboard) and outputs, API Testing employs software to make API calls, get output, and record the system’s response.