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: Retrieval-Augmented Generation, Model Context Protocol, Agentic Workflows, AI Orchestration, Generative AI Agents, Anthropic Claude, Prompt Engineering, Tool Calling, Generative AI, Automation, Scalability, Application Programming Interface (API), Servers, Python Programming
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Ajax, Object Oriented Programming (OOP), Javascript, JSON, Application Programming Interface (API), Scripting, Software Design Patterns, Data Management, Data Structures, Event-Driven Programming, Data Validation, Prototyping, Computational Logic, Maintainability, Programming Principles, Web Development, Software Development, Debugging, Software Engineering, Performance Tuning
Intermediate · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Google App Engine, Cloud Applications, Google Cloud Platform, Cloud Development, Application Deployment, Scalability, Platform As A Service (PaaS), Test Tools, Cloud API, PHP (Scripting Language)
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Transaction Processing, Hybrid Cloud Computing, COBOL (Programming Language), Mainframe Technologies, Mainframe Computing, IBM Cloud, Cloud Applications, Enterprise Application Management, Application Servers, Application Development, Application Programming Interface (API), Middleware, Business Logic
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React Redux, React.js, Back-End Web Development, Front-End Web Development, UI Components, Web Applications, Application Programming Interface (API), JavaScript Frameworks, Web Design and Development, Authentications, Responsive Web Design, Restful API, User Interface (UI), User Accounts
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Deployment, Microservices, Cloud Infrastructure, Restful API, Google App Engine, Google Cloud Platform, Cloud Computing Architecture, Kubernetes, Cloud Storage, CI/CD, Network Architecture, Distributed Denial-Of-Service (DDoS) Attacks, Cloud Security, Systems Design, Virtual Networking, System Monitoring, Scalability, Load Balancing, Disaster Recovery
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Application Deployment, Cloud Deployment, API Gateway, Cloud API, Application Programming Interface (API), Virtual Environment, Multi-Tenant Cloud Environments, Google Cloud Platform
Beginner · Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Spring Framework, Java, Spring Boot, Java Programming, Hibernate (Java), Web Development, Web Servers, Web Components, Servers, Databases
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Secure Coding, Security Controls, HTML and CSS, UI Components
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Hugging Face, LLM Application, LangChain, Large Language Modeling, OpenAI, Natural Language Processing, Generative AI Agents, ChatGPT, Responsible AI, Embeddings, Application Programming Interface (API), Text Mining, Restful API, Agentic systems, Open Source Technology, Data Preprocessing, MLOps (Machine Learning Operations), Python Programming, Model Evaluation
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Restful API, Web Services, Hypertext Markup Language (HTML), HTML and CSS, Java Platform Enterprise Edition (J2EE), Software Design, Java, Extensible Markup Language (XML), Application Programming Interface (API), API Design, JSON, Software Architecture, Web Design and Development, Web Applications, Front-End Web Development, Web Development, Server Side
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: JUnit, Unit Testing, IntelliJ IDEA, Apache Maven, Software Testing, Test Case, Testability, Test Tools, Java, Mockups
Intermediate · Course · 1 - 3 Months