API Testing Is the Skill Every QA Team Is Hiring For — and Supply Can't Keep Up. Here's How You Master It.
From Postman basics to REST Assured automation, contract testing with Pact, gRPC testing, AI-powered generation, OWASP security, and k6 performance — the complete API QA stack.
Syllabus
Modules
HTTP & HTTPS Internals
API Architectures + gRPC Deep Dive
Modules
Postman 101
Authentication Methods
Postman Scripts & Assertions
Request Chaining
Swagger / OpenAPI Spec
Error Resilience Testing
Mock Servers
Milestone Lab
Modules
Framework Setup (REST Assured + Playwright TS)
Design Patterns
Serialization (POJO / Interface)
Schema Validation
Contract Testing with Pact
Data-Driven Testing (I)
Data-Driven Testing (II)
GraphQL Auto
Interception & Mocking
Logging & Reporting — Allure
Milestone Lab 2
Modules
MCP for APIs
Autonomous Test Generation
AI Fuzzing & Security Payloads
Prompt Engineering for API Test Design
AI Contract & Documentation Generation
Modules
OWASP API Top 10 — Part 1
OWASP API Top 10 — Part 2
Modules
Performance Testing — k6 + Gatling
Spike, Soak & Memory Leak Testing
Modules
Capstone: AI-Powered API Security Suite + Demo
Outcome
- Validate API requests, responses, status codes, and data accuracy using Postman
- Implement authentication testing — Basic, Bearer token, OAuth 2.0, and API keys
- Build a REST Assured automation framework with data-driven tests and schema validation
- Test GraphQL APIs and intercept network requests for validation
- Apply OWASP API Top 10 security testing techniques including mass assignment attacks
- Run API performance and load tests using k6 and JMeter
- Use AI to generate test data, validate contracts, and detect performance anomalies
- Integrate your API test suite into CI/CD pipelines with Docker execution
- Implement consumer-driven contract testing with Pact to prevent breaking changes in microservices.
- Test gRPC APIs including unary and streaming RPCs using Protocol Buffers.
- Run automated OWASP API security scans using ZAP integrated into your CIÂ pipeline.
Tools
Postman
REST Assured
k6
JMeter
Pact
OWASP ZAP
WireMock
Docker
GitHub Actions
Jenkins
GitHub Copilot
Who Should Enroll
Manual tester →
Move into API testing track.
Automation engineer →
Add REST Assured + contract testing.
Backend developer →
Add formal QA and security testing skills.
QA with Postman skills →
Level up to automation, Pact, k6, and OWASP.
Market Growth
FAQs
This course is designed to help learners understand and master API testing from manual validation to automation. It covers API fundamentals, testing techniques, automation tools, CI/CD integration, and AI-powered testing approaches.
This course is ideal for:
Manual testers who want to move into API testing and automation
QA engineers and test automation professionals
Developers who want to validate APIs effectively
Fresh graduates interested in software testing careers
Basic programming knowledge is helpful but not mandatory. The course starts with manual API testing concepts and gradually introduces automation using tools and frameworks.
You will gain hands-on experience with tools such as:
Postman, REST Assured (Java) + Playwright (TypeScript), Pact (contract testing), k6 + JMeter + Gatling (performance), OWASP ZAP (security), WireMock (mocking), Docker, GitHub Actions, and AI-powered generation via Claude/Copilot and Keploy.Yes. The training includes practical exercises and real-world API testing scenarios to help learners understand how APIs are tested in real industry environments.
Yes. The course is structured as a progression — Phase 2 covers comprehensive manual testing in Postman (including scripts, assertions, and chaining), and Phase 3 moves into REST Assured automation in Java. By the end you’ll be comfortable in both tools and know when to use each.
Basic programming familiarity is helpful for the REST Assured automation phases. The course introduces Java concepts needed for REST Assured. If you’re completely new to programming, we recommend completing the Freshers course first to build your foundation.