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: Node.JS, Role-Based Access Control (RBAC), TypeScript, Authentications, Server Side, Jest (JavaScript Testing Framework), Web Frameworks, Back-End Web Development, Authorization (Computing), MongoDB, Object-Relational Mapping, Web Development Tools, Web Applications, Identity and Access Management, Unit Testing, Test Script Development, Web Development, Database Management, Application Programming Interface (API), Javascript and jQuery
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Design, File I/O, Integrated Development Environments, Functional Design
Beginner · Course · 3 - 6 Months

Mixed · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Flask (Web Framework), Web Applications, Package and Software Management, Web Frameworks, Application Frameworks, Debugging, Program Development, Development Environment, Restful API, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Kubernetes, Docker (Software), Application Deployment, Cloud Deployment, Cloud-Native Computing, Google App Engine, Google Cloud Platform, Distributed Computing, Test Tools, API Testing, Performance Stress Testing, Performance Testing, DevOps, Public Cloud, Restful API, Web Development
Intermediate · Project · Less Than 2 Hours

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

Skills you'll gain: Containerization, Restful API, Event-Driven Programming, DevOps, Data Integration, z/OS, Solution Architecture, Cloud Applications, Enterprise Architecture, IBM Cloud, Cloud-Based Integration, Application Lifecycle Management, Cloud-Native Computing, Application Design, Systems Integration, Hybrid Cloud Computing, Software Architecture, Application Programming Interface (API), Mainframe Computing
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Agentic systems, Generative AI Agents, Front-End Web Development, Google Gemini, Model Context Protocol, AI Integrations, OpenAI API, Artificial Intelligence, Frontend Performance, Frontend Integration, ChatGPT, LLM Application, TypeScript, Generative AI, Web Applications, Software Architecture, Node.JS, User Interface and User Experience (UI/UX) Design, Data Integration, Machine Learning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Serverless Computing, Application Programming Interface (API), Cloud Infrastructure, Containerization, Digital Transformation, Cloud Applications, Cloud Platforms, Google Cloud Platform, Cloud-Native Computing, Hybrid Cloud Computing, Cloud Computing, Cloud Services, Business Transformation, Multi-Cloud, Kubernetes, Cloud Deployment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Git (Version Control System), Version Control, Collaborative Software, Application Programming Interface (API)
Intermediate · Guided Project · Less Than 2 Hours

Codio
Skills you'll gain: Model View Controller, Test Driven Development (TDD), Restful API, Vue.JS, Full-Stack Web Development, Frontend Integration, JavaScript Frameworks, Web Applications, Application Programming Interface (API), Unit Testing, Server Side, Web Components, Software Design Patterns, Javascript, HTML and CSS, Event-Driven Programming, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: .NET Framework, Cloud Platforms, Web Content
Intermediate · Course · 1 - 3 Months