If you are a manual tester who suddenly needs to test APIs at a new job and does not know where to start, this free course covers the fundamentals of REST APIs and manual and automated API testing with Postman. It includes REST architectural constraints, client server architecture, anatomy of HTTP requests and responses, JSON, and an introduction to Postman automated API testing.

This Course Offers

• A Complete Introduction to REST APIs: You will learn what REST APIs are, REST architectural constraints, client server architecture, and the anatomy of HTTP requests and responses.
• Manual API Testing Fundamentals: The course covers basic knowledge about RESTful APIs and JSON, and an introduction to manual API testing.
• Automated API Testing with Postman: You will get an introduction to Postman automated API testing, preparing you to test APIs using this popular tool.
• A Beginner Friendly, Scenario Driven Approach: The course is designed for manual testers with no prior specialized knowledge or programming experience.

Why We Love This Course

1. It is free. You can learn API testing fundamentals without any financial commitment.
2. It is popular and well reviewed. With over 9,900 students and a 4.6 star rating, students praise the course as exactly what they were searching for and very nicely explained.
3. It is designed for manual testers. The course addresses the specific pain point of manual testers who suddenly need to test APIs.
4. It is recently updated. With a publication date of November 2025, the course content is current.

If you are a manual tester who needs to learn how to test APIs as soon as possible, or anyone who wants to understand REST APIs and Postman testing, this free, popular course provides a solid introduction.

• Manual testers who need to learn how to test APIs as soon as possible.
• People who cannot imagine their life without REST APIs.
• Anyone who wants a beginner friendly introduction to API testing with Postman.
• Testers transitioning from manual to automated testing.

• No prior specialized knowledge is required.
• No programming experience is needed.
• A desire to learn APIs and a thirst for knowledge are essential.

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