RESTful API courses can help you learn how to design, implement, and consume APIs, as well as understand HTTP methods, status codes, and data formats like JSON and XML. You can build skills in authentication techniques, error handling, and versioning strategies to ensure robust API functionality. Many courses introduce tools such as Postman for testing APIs and Swagger for documentation, that support streamlining the development process and enhancing collaboration among teams.

Skills you'll gain: ASP.NET, Application Programming Interface (API), Web Applications, Full-Stack Web Development, Restful API, OAuth, UI Components, Back-End Web Development, Application Frameworks, Event-Driven Programming, User Interface (UI), Data Management, Data Modeling, Data Validation, Debugging
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Spring Framework, Microservices, JUnit, Model View Controller, Hibernate (Java), Restful API, Spring Boot, Software Architecture, API Gateway, Web Services, Object-Relational Mapping, Transaction Processing, Service Oriented Architecture, Cloud Computing Architecture, JSON, YAML, Load Balancing, Unit Testing, Software Configuration Management, Java Programming
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Large Language Modeling, Generative AI, Back-End Web Development, Full-Stack Web Development, Application Deployment, Computer Programming, User Interface (UI) Design, Scalability
Intermediate · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Prompt Engineering, ChatGPT, Generative AI Agents, Prompt Patterns, LLM Application, Productivity, OpenAI, Agentic systems, Tool Calling, Generative AI, Artificial Intelligence, Large Language Modeling, Artificial Intelligence and Machine Learning (AI/ML), Creative Thinking, Application Development, Creative Problem-Solving, Prototyping, Persona (User Experience), Business Logic, Application Programming Interface (API)
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Model View Controller, JSON, Application Programming Interface (API), Application Frameworks, Web Services, Middleware, Back-End Web Development, Server Side, Extensible Markup Language (XML), Routing Protocols
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JSON, jQuery, Web Development Tools, Browser Compatibility, UI Components
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: C# (Programming Language), Restful API, ASP.NET, Model View Controller, .NET Framework, Docker (Software), Azure DevOps, Object Oriented Programming (OOP), Microservices, Containerization, JSON, Application Programming Interface (API), Application Frameworks, DevOps, Web Services, Middleware, CI/CD, Back-End Web Development, Web Applications, Programming Principles
Intermediate · Specialization · 1 - 3 Months
Skills you'll gain: Node.JS, Restful API, React Redux, Database Design, React.js, Ajax, Database Development, Database Application, Server Side, Full-Stack Web Development, Back-End Web Development, NoSQL, Javascript, JavaScript Frameworks, Front-End Web Development, API Design, Cloud Applications, Data Structures, MongoDB, Debugging
Beginner · Specialization · 3 - 6 Months

Meta
Skills you'll gain: Jest (JavaScript Testing Framework), React.js, Web Applications, JavaScript Frameworks, Application Development, API Design, UI Components, Unit Testing, Front-End Web Development, Software Design Patterns, Cascading Style Sheets (CSS), Javascript, Development Environment, Hypertext Markup Language (HTML), Debugging
Intermediate · Specialization · 1 - 3 Months

University of Michigan
Skills you'll gain: Unified Modeling Language, JSON, Object Oriented Programming (OOP), Software Design, Debugging, Object Oriented Design, Data Processing, Web Scraping, Unit Testing, Programming Principles, Python Programming, Data Import/Export, Restful API, Image Analysis, Data Manipulation, Jupyter, Computer Programming, Data Structures, Software Engineering, File Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: ASP.NET, .NET Framework, Responsive Web Design, API Design, Restful API, Middleware, Data Migration, Configuration Management, Application Deployment, Data Validation, HTML and CSS, Database Application, Software Testing, C# (Programming Language), Postman API Platform, Full-Stack Web Development, Microsoft Azure, Web Applications, Web Development, Javascript and jQuery
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: React.js, ChatGPT, Application Deployment, JavaScript Frameworks, Front-End Web Development, Application Programming Interface (API), Debugging, User Interface (UI), User Interface and User Experience (UI/UX) Design, Data Storage Technologies
Intermediate · Course · 1 - 3 Months