API testing courses can help you learn how to validate API functionality, performance, security, and reliability. You can build skills in writing test cases, automating tests, and analyzing API responses to ensure they meet specifications. Many courses introduce tools like Postman, SoapUI, and JMeter, that support executing tests and monitoring API behavior. You'll also explore methods for integrating testing into the development process, enhancing collaboration between teams, and ensuring seamless application performance.

American Psychological Association
Skills you'll gain: Sample Size Determination, Statistical Hypothesis Testing, Statistical Methods, Statistical Reporting, Quantitative Research, Statistical Analysis, Probability & Statistics, Sampling (Statistics), Statistical Inference, Descriptive Statistics, Statistics, Probability Distribution, Data Analysis, Regression Analysis, Research Design, Research, Psychology
Beginner · Course · 1 - 3 Months

Skills you'll gain: jQuery, Ajax, Javascript and jQuery, JSON, Animations, Event-Driven Programming, Debugging, Cascading Style Sheets (CSS), Application Programming Interface (API), Web Applications, Web Development Tools, Responsive Web Design, Javascript, JavaScript Frameworks, Interactive Design, HTML and CSS, Hypertext Markup Language (HTML), Program Development, Interaction Design, Game Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Generative AI Agents, Agentic systems, Generative AI, Generative Model Architectures, Agentic Workflows, Responsible AI, AI Orchestration, Large Language Modeling, AI Security, Artificial Intelligence, LLM Application, Tool Calling, LangChain, Restful API, Automation, Natural Language Processing, Python Programming, Ethical Standards And Conduct
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Front-End Web Development, Web Development, JavaScript Frameworks, Web Applications, React.js, Serverless Computing, Application Programming Interface (API), Server Side
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Spring Boot, Hibernate (Java), Object Oriented Design, Spring Framework, Object-Relational Mapping, Database Management, Computer Programming, Web Development, Authorization (Computing), Database Development, Restful API, Role-Based Access Control (RBAC), Authentications, Debugging, Programming Principles, Development Environment
Beginner · Course · 3 - 6 Months

Skills you'll gain: Microsoft Power Automate/Flow, Email Automation, Workflow Management, Microsoft Power Platform, Product Testing, Document Management, Business Process Automation, Microsoft 365
Beginner · Guided Project · Less Than 2 Hours
University of Maryland, College Park
Skills you'll gain: Health Informatics, Public Health, Health Policy, Public Health and Disease Prevention, Clinical Informatics, Health Care Administration, Health Administration, Informatics, Health Care, Health Systems, Healthcare Industry Knowledge, Health Care Procedure and Regulation, Data Sharing, Health Technology, Interoperability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, Code Review, Software Development Tools, Test Automation, Test Script Development, Software Documentation, Maintainability, Application Development, Generative AI, AI Integrations, Software Development, Computer Programming Tools, Software Technical Review, Jest (JavaScript Testing Framework), Javascript, ChatGPT, GitHub
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: MLOps (Machine Learning Operations), Feature Engineering, Model Evaluation, Model Training, Model Deployment, Model Optimization, Data Preprocessing, Performance Analysis, Machine Learning Methods, Data Pipelines, Analysis, Data Transformation, Technical Writing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Video Game Development, Test Script Development, Game Design, Investments, Test Automation, Digital Assets, Investment Management, Unit Testing, Development Testing, Cryptography, Key Management, Program Development, Cryptographic Protocols, FinTech, General Finance, Software Development, Web Development Tools, Asset Management, Asset Protection
Beginner · Course · 3 - 6 Months

Skills you'll gain: Multimodal Prompts, Prompt Engineering, AI Orchestration, AI Workflows, Generative AI, AI Integrations, Microsoft Azure, OpenAI API, Prompt Patterns, Image Analysis, Artificial Intelligence, Computer Vision, Model Optimization
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Merchandising, E-Commerce, Web Applications, Scalability, Business Technologies, Technology Solutions, Application Frameworks, Application Development, Systems Integration, Javascript
Beginner · Course · 1 - 4 Weeks