API Test Services
In today’s interconnected digital ecosystems, APIs are the backbone of seamless workflows and integrations. Qpact Solutions’s API Testing Services enable your organisation to validate, secure, and optimise API-driven functionalities-ensuring robust, high-quality integrations across systems, services, and third-party platforms. According to industry best-practice, API testing is a critical layer that verifies functionality, reliability, performance, and security of endpoints.
Functional & Validation Testing
We test API endpoints for correct methods (GET, POST, PUT, DELETE), payload schema, business logic, and response codes. Positive and negative scenario testing: valid inputs, invalid inputs, boundary conditions. Data-integrity checks ensuring that API responses and side-effects align with business transactions.
Interface, Integration & Dependency Testing
Validating data flow between APIs, micro-services, databases, and external systems. Checking request/response chain across multiple services and modules—ensuring end-to-end integration. Verifying sequence and stateful interactions, especially for inter-dependent APIs.
Interface, Integration & Dependency Testing
Validating data flow between APIs, micro-services, databases, and external systems. Checking request/response chain across multiple services and modules-ensuring end-to-end integration. Verifying sequence and stateful interactions, especially for inter-dependent APIs.
Automation of API Tests & Regression Suites
Automation of API test scenarios to enable continuous validation with each build or release. Creation of reusable test modules, data-driven scripts, and integration into CI/CD pipelines. Regression suites specifically for APIs to ensure existing integrations remain stable after changes.
Performance, Load & Security Testing of APIs
Assessing API performance under load, checking response times, throughput and concurrency. Security testing for authentication, authorization, input validation, rate-limiting, and vulnerability checks.
Performance, Load & Security Testing of APIs
Assessing API performance under load, checking response times, throughput and concurrency. Security testing for authentication, authorization, input validation, rate-limiting, and vulnerability checks.
Test Data Management & Service Simulation (Mocking/Virtualisation)
Generating synthetic test data, controlling test environments to simulate API dependencies. Using stubs, mocks or service virtualization to isolate APIs under test, enabling consistent, controlled test execution.
Our Approach
Assessment & Strategy
We review your API landscape, integrations, dependencies, business risk areas and define a testing strategy aligned to your objectives.
Test Design & Automation Framework Setup
Define test cases (functional, integration, performance, security), set up toolchain and automation architecture.
Test Execution & Defect Management
Execute tests, log and track defects, coordinate fixes, verify retests and ensure traceability.
Regression & Release Readiness
Maintain and execute regression suites, validate APIs ahead of each release, provide dashboards and readiness reports.
Continuous Improvement & Monitoring
Optimise test assets, monitor test coverage, adapt to evolving API contracts and maintain high test suite health.
Why Choose Qpact’s API Test Services?
Domain & Technical Expertise
Our team brings deep experience across REST/SOAP, micro-services, and enterprise-grade API ecosystems-0ensuring you benefit from real business knowledge and technical fluency.
Accelerated Time-to-Value:
With pre-built test libraries, templates, automation frameworks, and best-practice processes, you get faster delivery and reduced ramp-up time.
Comprehensive Coverage & Risk Mitigation
From functional correctness to performance, security and compliance, we cover all layers of API testing-helping avoid unexpected disruptions in production.
Seamless DevOps & Continuous Testing Integration
We embed API testing into your build and release lifecycle, enabling early defect detection, faster feedback loops and more reliable deployments.
APIs are critical to your digital strategy-interconnecting systems, enabling agility, and delivering business value. Don’t let untested or unstable APIs become hidden risks.
Contact Qpact Solutions today to find out how our API Test Services can help you:
- Validate complex integrations and micro-services ecosystems
- Automate API testing within your CI/CD pipelines
- Assure performance, security and reliability of API-driven operations
- Implement test-data strategies and service-virtualisation for resilient testing