API courses can help you learn how to design, build, and test application programming interfaces, as well as understand RESTful services and authentication methods. You can build skills in data exchange formats like JSON and XML, error handling, and API documentation practices. Many courses introduce tools such as Postman for testing APIs, Swagger for documentation, and various programming languages like Python or JavaScript to implement API calls, allowing you to effectively integrate and manage data across different systems.

Skills you'll gain: Kubernetes, Application Deployment, API Gateway, Cloud-Native Computing, Containerization, Network Troubleshooting, Data Storage, Network Administration, Infrastructure Security, Role-Based Access Control (RBAC), Software-Defined Networking, YAML, DevOps, Technical Support and Services, Linux Administration, Data Storage Technologies, General Networking, Network Architecture, Problem Management, Test Case
Intermediate · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: React Redux, React.js, Cascading Style Sheets (CSS), Web Components, JavaScript Frameworks, UI Components, HTML and CSS, Routing Protocols, Front-End Web Development, User Interface (UI), Web Frameworks, Maintainability, Authentications, Web Development Tools, Application Frameworks, Application Programming Interface (API), Web Design, Restful API, Javascript, Web Development
Intermediate · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Management, Real Time Data, Digital Transformation, Cloud Solutions, Serverless Computing, Google Cloud Platform, Cloud Infrastructure, Artificial Intelligence and Machine Learning (AI/ML), Cloud Security, Application Programming Interface (API), Public Cloud, Cloud Computing, Cloud Storage, Cost Management, Containerization, Cloud Applications, Data Warehousing, Artificial Intelligence, Data Security, Cybersecurity
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, LLM Application, OpenAI API, OpenAI, Large Language Modeling, Agentic systems, Hugging Face, Embeddings, Application Development, Program Development, AI Workflows, Data Processing, Application Frameworks
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Rust (Programming Language), Data Structures, Package and Software Management, Blockchain, Development Environment, Web Development, Programming Principles, Web Servers, Restful API, System Programming, Maintainability, Algorithms, Integrated Development Environments, Software Testing, Unit Testing, Software Design Patterns, Development Testing, Debugging
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: NoSQL, MongoDB, Flask (Web Framework), Cloud Deployment, Back-End Web Development, Database Systems, Django (Web Framework), Cloud-Native Computing, Cloud Applications, OpenShift, Microservices, Kubernetes, Docker (Software), Application Development, Restful API, Scalability
Advanced · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Node.JS, MongoDB, Middleware, Databases, Database Systems
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Jest (JavaScript Testing Framework), User Acceptance Testing (UAT), Cucumber (Software), Postman API Platform, Software Testing, Behavior-Driven Development, Test Tools, Selenium (Software), Test Driven Development (TDD), API Testing, Unit Testing, Performance Testing, Functional Testing, Test Automation, Web Development Tools, Usability Testing, User Interface (UI), Test Case, Javascript
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, JUnit, Object Oriented Programming (OOP), Unified Modeling Language, Software Design Patterns, Software Testing, Software Engineering, Java, Java Programming, Computer Programming, Application Design, User Interface and User Experience (UI/UX) Design, Unit Testing, Software Design, Software Architecture, API Design, Model View Controller, Program Development, Software Development, Databases
Intermediate · Specialization · 3 - 6 Months

Edureka
Skills you'll gain: Rust (Programming Language), Back-End Web Development, System Programming, Web Frameworks, Web Development, Web Servers, Software Documentation, Scalability, Maintainability, Secure Coding, Debugging, Application Development, Authentications, Authorization (Computing)
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: TypeScript, Object Oriented Design, Node.JS, Role-Based Access Control (RBAC), Object Oriented Programming (OOP), Webpack, React Redux, Back-End Web Development, React.js, Full-Stack Web Development, Web Development, MongoDB, Front-End Web Development, Javascript, Application Programming Interface (API), Software Design Patterns, API Design, Programming Principles, Software Development, Debugging
Beginner · Specialization · 3 - 6 Months

SkillUp
Skills you'll gain: Hibernate (Java), Object-Relational Mapping, Spring Boot, Restful API, Java, NoSQL, Database Development, SQL, Databases, Database Design, Application Frameworks, Java Programming, Data Access, Database Management, Relational Databases, Back-End Web Development, Software Development
Intermediate · Course · 1 - 4 Weeks