15 Best API Testing Courses for Upskilling in 2025
Mastering API testing is not always straightforward. Maybe you’ve hit a wall trying to debug flaky API failures in a complex microservices environment or struggled to get authentication protocols to play nice with your test setup. If that sounds familiar, you’re not alone.
The good news? Upskilling in API testing doesn’t have to be a guessing game. With the right courses, you can build expertise in areas like automating test scripts, ensuring compliance with industry standards, and crafting tests that go beyond surface-level validations.
In this article, we’ve curated 15 of the best API testing courses for 2025 to help you tackle these challenges head-on and ensure your APIs deliver flawless performance.
Best API Testing Courses Shortlist
- Mastering Microservices and REST API Automation (The Test Tribe)
- API Penetration Testing Course (APIsec University)
- API Testing Certification Course (Intellipaat)
- API Testing Foundations (LinkedIn Learning)
- Introduction to API Testing (Great Learning)
- API Testing and Automation (Inspired Testing)
- API Testing Course Training (Croma Campus)
- Webservices / API Testing (REST ASSURED) course (Way2Automation)
- API Testing With Katalon (Katalon Academy)
- API Automation Testing Course using REST Assured (Edureka)
- Certified API Testing Professional (Vskills)
- API Testing with Postman Training Course (Grupo Training)
- API Testing Cherry Course (Koenig Solutions)
- API Functional Testing Master Class (Isha Training Solutions)
- API Testing With Database Testing (MYSQL) (Gautam Testing Academy)
Overview of the Best API Testing Courses
1. Mastering Microservices and REST API Automation (The Test Tribe)
This course focuses on API testing and automation with REST Assured, offering hands-on experience with real-world projects. It covers key tools and strategies for automating REST API testing efficiently, even for beginners. The program also provides valuable resources for interview preparation and career advancement.
- Who It’s For: For professionals looking to deepen their API automation skills
- Topics Covered:
- REST API automation
- Microservices
- Testing frameworks
- Online, In-Person, or Both? Online
- Exam Required? No
- Duration: 13 hours
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: $56
- Take The Course: The Test Tribe
2. API Penetration Testing Course (APIsec University)
This course provides hands-on training in API security testing, focusing on techniques to identify and address potential vulnerabilities. It offers practical experience through live instruction and labs, equipping participants with the skills to strengthen API defenses.
- Who It’s For: Ideal for cybersecurity professionals
- Topics Covered:
- API security
- Penetration testing
- Vulnerability analysis
- Online, In-Person, or Both? Online
- Exam Required? Yes
- Duration: 12 hours
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Take The Course: APIsec University
3. API Testing Certification Course (Intellipaat)
This course offers in-depth training for aspiring API Test Engineers, focusing on essential tools and techniques. Participants will gain hands-on experience with Postman and automation tools such as NPM and Newman. The course includes projects and assignments to solidify skills and lifetime access to learning resources.
- Who It’s For: Suitable for aspiring API testers
- Topics Covered:
- API testing basics
- Automation tools
- Test case design
- Online, In-Person, or Both? Online
- Exam Required? Yes
- Duration: 35 hours
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: $351
- Take The Course: Intellipaat
4. API Testing Foundations (LinkedIn Learning)
This course offers a comprehensive introduction to API testing techniques and tools. It guides participants through key methodologies for testing requests and highlights important aspects of performance and security testing. The focus is on practical skills that can be applied in real-world scenarios.
- Who It’s For: Beginners in API testing
- Topics Covered:
- API basics
- Testing techniques
- Tools overview
- Online, In-Person, or Both? Online
- Exam Required? No
- Duration: 1 hour 33 minutes
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: Free for a month
- Take The Course: LinkedIn Learning
5. Introduction to API Testing (Great Learning)
This course covers the core principles of API testing, including both manual and automated techniques. It focuses on key areas such as authentication, data validation, and security while guiding participants through building test cases and using automation tools. The course ensures a solid grasp of best practices in API testing.
- Who It’s For: Beginners in software testing
- Topics Covered:
- API fundamentals
- Testing tools
- Basic testing techniques
- Automation of API testing
- Online, In-Person, or Both? Online
- Exam Required? No
- Duration: 2 hours and 25 minutes
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: Free
- Take The Course: Great Learning
6. API Testing and Automation (Inspired Testing)
This course teaches essential skills for testing and automating APIs, focusing on streamlining software testing processes. Participants will learn to efficiently create and execute API tests and integrate them into larger testing frameworks. The course includes hands-on exercises with industry-standard tools to enhance practical application.
- Who It’s For: Best for software testers and developers
- Topics Covered:
- Automation frameworks
- API testing tools
- Continuous integration
- Online, In-Person, or Both? Online
- Exam Required? Yes
- Duration: 2 months
- How Many Hours Of Instruction: 36 hours
- Eligibility Requirements: None
- Take The Course: Inspired Testing
7. API Testing Course Training (Croma Campus)
This course equips participants with the skills to perform API testing using tools like Postman, covering everything from creating tests to generating reports. Through hands-on sessions, learners gain practical experience in handling various API requests. It also offers projects and lifetime access to materials for ongoing development.
- Who It’s For: Aspiring API testers and developers
- Topics Covered:
- Manual testing
- Automation testing
- Testing tools
- Online, In-Person, or Both? Both
- Exam Required? Yes
- Duration: 30 hours
- How Many Hours Of Instruction: 1 to 2 hours per day
- Eligibility Requirements: None
- Take The Course: Croma Campus
8. Webservices / API Testing (REST ASSURED) course (Way2Automation)
This course covers essential skills for testing REST and SOAP APIs using RestAssured and Java. It emphasizes effective testing of JSON and XML files, along with response validation and performance checks. Learners will also develop API testing frameworks using advanced Java concepts.
- Who It’s For: Testers looking to specialize in REST API testing
- Topics Covered:
- REST assured
- Webservices testing
- SOAPUI
- Online, In-Person, or Both? Online
- Exam Required? No
- Duration: 50 to 60 hours
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: $149
- Take The Course: Way2Automation
9. API Testing With Katalon (Katalon Academy)
This course guides users through creating and automating API requests with Katalon’s low-code tools, covering REST and SOAP. Participants build skills in advanced API testing techniques, from request chaining to data-driven testing. Completing the course enables users to handle API testing projects efficiently using Katalon.
- Who It’s For: Testers and developers using Katalon
- Topics Covered:
- Katalon studio
- API Testing techniques
- Automation
- Online, In-Person, or Both? Online
- Exam Required? No
- Duration: 4 hours 50 minutes
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: Free
- Take The Course: Katalon Academy
10. API Automation Testing Course using REST Assured (Edureka)
This course develops expertise in API automation testing with Rest Assured and Postman. Learn to create automated tests, manage authentication, and seamlessly integrate testing into CI pipelines. Build practical skills for efficient API testing and automation workflows.
- Who It’s For: Suitable for testers and developers
- Topics Covered:
- REST assured
- API automation
- TestNG framework
- Online, In-Person, or Both? Online
- Exam Required? Yes
- Duration: 4 weeks
- How Many Hours Of Instruction: 3 hours
- Eligibility Requirements: None
- Price: $399
- Take The Course: Edureka
11. Certified API Testing Professional (Vskills)
This course certifies your expertise in API testing, focusing on functionality, performance, and security. It's ideal for professionals seeking to enhance their career prospects in software testing or application development. Achieving certification helps demonstrate advanced skills and boosts job market competitiveness.
- Who It’s For: Aspiring API testing professionals
- Topics Covered:
- API Testing techniques
- Tools and frameworks
- Industry standards
- Online, In-Person, or Both? Online
- Exam Required? Yes
- Duration: 20 hours
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: $49
- Take The Course: Vskills
12. API Testing with Postman Training Course (Grupo Training)
This course teaches software testers how to perform API testing using Postman efficiently. Participants will automate requests, manage workflows, and organize tests for team collaboration. The course also covers scripting and GitHub integration for streamlined API testing.
- Who It’s For: Testers and developers using Postman
- Topics Covered:
- Creating API requests using Katalon's low-code solutions
- Automating test cases for REST and SOAP APIs
- Chaining API requests for enhanced testing workflows
- Handling API authentications
- Online, In-Person, or Both? Online
- Exam Required? No
- Duration: 3 days
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements:
- An understanding of HTTP
- NodeJS/NPM experience
- Price: £249.99
- Take The Course: Grupo Training
13. API Testing Cherry Course (Koenig Solutions)
This course covers key API testing methods, including REST, SOAP, and GraphQL, using tools like Postman and JMeter. Gain practical skills in request automation and performance testing. Ideal for IT professionals aiming to advance in API validation and optimization.
- Who It’s For: Suitable for software testers
- Topics Covered:
- Testing tools
- Testing techniques
- API concepts
- Online, In-Person, or Both? Both
- Exam Required? Yes
- Duration: 2 to 4 days
- How Many Hours Of Instruction: 8 hours per day
- Eligibility Requirements:
- Basic Understanding of Software Development
- Knowledge of HTTP/HTTPS
- Basic Programming Skills
- Familiarity with Web Technologies
- Interest in Software Testing
- Price: $1,050
- Take The Course: Koenig Solutions
14. API Functional Testing Master Class (Isha Training Solutions)
This course provides hands-on training in API functional testing, focusing on tools like Postman and testing RESTful APIs. Led by an experienced instructor, it equips you with the skills needed for API testing roles, emphasizing real-world applications. Perfect for enhancing expertise in API testing and boosting career opportunities.
- Who It’s For: Experienced testers
- Topics Covered:
- Functional testing
- API testing strategies
- Advanced techniques
- Online, In-Person, or Both? Online
- Exam Required? No
- Duration: 25 days
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: $154
- Take The Course: Isha Training Solutions
15. API Testing With Database Testing (MYSQL) (Gautam Testing Academy)
This course focuses on integrating API and database testing, teaching participants to write SQL queries and handle database testing alongside APIs. It covers key topics like schema management, database tables, and manual testing integration.
- Who It’s For: Ideal for testers working with databases
- Topics Covered:
- API testing
- Database testing
- MySQL
- Online, In-Person, or Both? Online
- Exam Required? Yes
- Duration: 50 hours
- How Many Hours Of Instruction: Self-paced
- Eligibility Requirements: None
- Price: $118.95
- Take The Course: Gautam Testing Academy
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