API Testing for Manual QA
Learn how modern applications communicate and test REST, SOAP, GraphQL, gRPC, and WebSockets with practical tools.
All qa.cafe features are currently free. Features and test data can change before launch.
Focused courses for quality engineers at every stage—from the fundamentals to automation, specialist skills, and leadership.
Learn how modern applications communicate and test REST, SOAP, GraphQL, gRPC, and WebSockets with practical tools.
Learn how software, networks, web applications, APIs, databases, cloud systems, delivery, testing, and security fit together—without needing a technical background.
Learn JavaScript from the beginning and use it to create clear data checks, assertions, and asynchronous QA workflows.
Understand the QA profession and learn how to test software thoughtfully from requirements to release.
Learn Python from zero and build practical utilities for test data, investigations, and quality evidence.
Design focused pytest suites, control dependencies, validate contracts, and produce trustworthy automation feedback.
Learn how Agile thinking and Scrum help cross-functional teams turn uncertain product ideas into valuable, inspectable outcomes.