Manual testers looking to transition into API testing
QA professionals and automation testers expanding their backend testing skills
Developers who want to validate and test APIs during development
IT professionals interested in learning API testing and backend validation concepts
Career starters exploring opportunities in QA and software testing roles
Anyone interested in learning how to test REST APIs using Postman
Learn API testing for real-world applications and backend validation
Delivered using OCA’s Skill Sprint™ Method with hands-on practice and instructor-led feedback
Work with industry-standard tool: Postman for API testing and automation
Apply REST API concepts and HTTP methods in practical scenarios
Build automated and data-driven API test workflows
Develop job-ready API testing and QA skills
Complete an end-to-end API testing project
API Testing with Postman is a practical, intermediate-level program designed to build strong skills in testing and validating RESTful APIs using Postman. The course provides a clear and structured approach to understanding API concepts and backend testing without unnecessary complexity, making it suitable for QA professionals, developers, and individuals expanding their testing capabilities.
Through guided learning and hands-on practice, participants develop an understanding of how APIs function, how data flows between systems, and how to validate API behavior effectively. The program covers REST fundamentals, HTTP methods, request and response handling, authentication techniques, and Postman-based testing workflows. Emphasis is placed on structured testing approaches, real-world API scenarios, and applying testing techniques to practical use cases.
Upon completion, learners possess the practical skills required to test APIs for functionality, reliability, and performance. The program also builds a strong foundation for advanced QA automation paths, enabling learners to expand into automation frameworks and integrate API testing into end-to-end testing strategies.
The following basic skills are recommended to maximize learning outcomes:
Comfort using a computer (file navigation, browser usage, basic typing)
Familiarity with web applications and basic computer tools
Basic understanding of software testing or application workflows (helpful but not required)
Interest in backend systems, APIs, and problem-solving
Willingness to learn API testing concepts and complete hands-on exercises
By the end of this course, you will be able to:
Understand REST APIs and how backend services communicate with applications
Explain HTTP methods, status codes, headers, and request/response structures
Create, organize, and manage API requests using Postman
Test RESTful APIs for functionality, accuracy, and reliability
Validate API responses using assertions and scripts in Postman
Handle authentication mechanisms such as API keys and bearer tokens
Use environments and variables to create dynamic and reusable API tests
Perform data-driven API testing using external data files
Execute automated API test collections using Postman Runner
Identify and report API defects effectively
Apply API testing practices in real-world QA and development projects
Build a strong foundation to progress into advanced QA automation and testing frameworks
This course prepares learners for entry-level and intermediate roles in API testing and quality assurance. After completing the training, learners will be better prepared for positions such as:
API Tester
QA Engineer (API Testing)
Software Test Engineer
Automation Tester (API-Focused)
Backend QA Engineer
Quality Assurance Analyst
Test Engineer (API & Integration Testing)
This course follows our proprietary OCA Skill Sprint Method — a structured approach focused on clear goals, hands-on practice, real-world application, and measurable performance.
As modern applications increasingly rely on APIs and microservices, API testing has become a critical skill across software development, cloud platforms, mobile applications, and enterprise systems. Organizations depend on APIs to enable seamless integration, data exchange, and service communication, making reliable API testing essential for ensuring performance, security, and system stability.
As API-first development and microservices architectures become standard across industries, professionals are expected to understand how backend systems function and how to validate them effectively. Skills in API testing, Postman, automation, and data validation are now highly valued in QA and development teams focused on delivering high-quality software.
This course addresses the growing demand for:
API testing skills for backend and microservices-based applications
QA professionals expanding beyond UI testing into API validation
Teams adopting API-first and integration-driven development approaches
Organizations aiming to detect defects early in the development lifecycle
Professionals building strong foundations for QA automation and testing careers
API testing is no longer optional — it is a core skill for modern software quality and reliability.