Master API Testing for Real-World QA.
API testing is the most in-demand skill in modern QA. These resources cover REST, GraphQL, authentication, security, and performance testing — with real projects you can show in interviews.
Recommended for API Testers
Curated and ordered by relevance to your goals.
Top Pick30+ in-depth guides covering REST, GraphQL, auth, security, and performance. Includes 4 real-world projects with both Postman and code-based approaches.
Hundreds of API-specific interview questions plus broader QA topics. Covers the exact questions interviewers ask about API testing strategy and tools.
Playwright supports API testing natively. Learn to combine UI and API tests in one framework — a skill interviewers love to see.
Get API Mastery plus 3 more resources at 18% off. Comprehensive coverage for QA engineers who want both API and UI automation skills.
50+ prompts including API payload generation, test data creation, and automated bug report writing — speeds up your API testing workflow immediately.
Highlights your API testing expertise on your resume and LinkedIn so recruiters searching for API automation skills find you first.
Frequently Asked Questions
Common questions from api testers.
Do I need coding experience for API testing?
Not for the basics — API Mastery starts with Postman-based approaches and progressively introduces code-based testing. You'll learn both paths.
Does this cover GraphQL testing?
Yes. API Mastery includes dedicated sections on GraphQL queries, mutations, subscriptions, and testing strategies specific to GraphQL APIs.
Is contract testing or API security covered?
Yes. The guide covers API security testing fundamentals (authentication, authorization, injection) and introduces contract testing concepts.
What tools are covered?
Postman, REST-assured patterns, Playwright API testing, and general HTTP client approaches. The concepts transfer to any tool or framework.
Also Helpful For
Explore curated resources for related roles.
Related Interview Prep
Free resources to complement your toolkit.
Become the API testing expert on your team
REST, GraphQL, security, performance — with real projects. Instant download, lifetime access.