automation

API Automation Testing Services

As bugs creep in and services fail silently, user trust erodes. Our API Automation Testing Services ensure backend logic, data flows, and integrations are fast, accurate, and resilient—using Postman, Rest Assured, and custom scripts for scalable, secure QA confidence.

Trusted by 4,000+ companies
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Tools We Use For Testing

How We Deliver API Automation Testing Services

Define Scenarios and Select Tools 1

We study your endpoints and workflows to define test scenarios and choose the best-fit tools—Postman for functional testing, or Rest Assured for advanced validations

Build Tests and Add to CI/CD 2

We create reusable API scripts with data-driven logic, assertions, and authentication handling—fully integrated into your pipeline for instant feedback and defect traceability

Monitor and Refactor Over Time 3

As APIs evolve, we update tests, handle deprecations, and ensure test health—giving QA and dev teams confidence in backend reliability at every release.

Make the most of TestUnity’s software testing services to provide an impeccable experience to your users

Try Our Services

Why Choose Us for API Automation Testing?

  • Fast, repeatable API regression testing
  • Postman, Rest Assured, and other modern tools
  • CI/CD integration for shift-left testing
  • Backend validation for reliability and security
  • Clear visibility into performance and failures

Our Case Studies

Functional Testing of Little Millennium Web App

Little Millennium is a renowned preschool that ignites young minds with boundless curiosity and a passion for learning. With a legacy of excellence in early education, Little Millennium offers a holistic approach that integrates the best of play-based learning, creativity, and academic readiness. Their dedicated team of educators is committed to providing personalized attention to […]

Functional Testing

Functional Testing of Physica(ComXr) Application

ComXR is a technology company that creates memorable experiences for your audience by leveraging virtual reality (VR). We specialize in high-end VR, one that allows your users to physically walk through and naturally interact with a truly lifelike, fully 3D environment. With a focus on quality, creativity, and technical expertise, we deliver customized solutions that […]

Security Testing

Security Testing of Bloom AI Application

Bloom AI is on a mission to operationalize data to fuel business ingenuity in the digital economy.  As business-data partners, we turn complex, siloed data into simple, digestible insights using our proprietary microinsights platform and headless business intelligence solutions. As companies scale their modern data infrastructure, Bloom AI helps users take the next step by […]

Functional Testing

Functional Testing of Travel Tech Website

Travel Tech is a completely virtual and free event, which offers tourism trade professionals (tourism, destinations, travels, and hospitality) educational resources and actionable strategies that will help them move toward recovery and improve profitability more quickly. In this case, the problem was that client was not sure from where to start, how to start, what […]

Automation Testing

Regression Testing of Contestee Platform

In English, “Contestee” refers to someone competing in a contest. Contestee is a social network that promotes global talent discovery through competitions. Using Contestee, anyone can showcase their amazing talents, skills, and attributes. Become famous by uploading your videos, collecting votes, and collecting likes! TestUnity began working on Contestee in November 2019. An Android and […]

Security Testing

Security Testing of NFT Platform

NgageN is an exclusive platform enabling NFT economies between Brands & Creators. Created byone of the leading Blockchain companies in India, NgageN is an invitation-only platform for credibleBrands & Creators to drive new forms of fan engagement, sources of revenue & community buildingby creating NFTs which provide exclusive digital assets as well as experiences. In […]

Frequently Asked Questions

  • APIs connect services, devices, and platforms. Testing them ensures backend stability, prevents integration failures, and guarantees accurate data exchange—without relying on slow, manual checks.

  • Yes. We validate your in-house APIs and also test external integrations like payment gateways or CRMs—ensuring end-to-end reliability across internal and partner ecosystems.

  • We manage OAuth tokens, headers, and encryption securely during test runs. Our test suites simulate real-world access patterns without compromising API security.

  • We use Postman for functional testing and Rest Assured or Karate for code-based tests—tailored to your stack and suited for scaling across hundreds of endpoints

  • Yes. We define scenarios, create scripts, integrate tests into CI/CD, and maintain them over time—ensuring seamless coverage even if you’re new to API testing.

Latest QA Blogs

Performance Testing: Tools, Metrics & Best Practices.

Performance Testing: Ensuring Speed, Stability & Scalability for Modern Applications Introduction In today’s digital age, performance isn’t just a feature — it’s a necessity. Users expect instant responses, and any lag or slowdown can erode trust, reduce conversions, and damage brand reputation. That’s why performance testing is a foundational pillar in modern QA strategies. When […]

Complete Guide to Types of Software Testing, Levels & Methods

Navigating the complex landscape of software testing can feel overwhelming, with organizations typically implementing between 15-25 different testing types across their development lifecycle. This comprehensive guide breaks down every aspect of types of software testing into clear, actionable categories, providing you with the knowledge to implement comprehensive testing strategies that significantly reduce defects and improve software quality. […]