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.

Macquarie University
Skills you'll gain: DevSecOps, Secure Coding, Application Security, IT Security Architecture, DevOps, Security Engineering, Security Controls, CI/CD, Cybersecurity, Cyber Security Strategy, Cloud Security, Infrastructure as Code (IaC), Cloud Platforms, Vulnerability Management, Development Environment, Cloud Computing, Cloud Infrastructure, Cloud Computing Architecture, User Story, Backlogs
Beginner · Course · 1 - 3 Months

Skills you'll gain: Context Engineering, Agentic Workflows, AI Orchestration, Tool Calling, Generative AI, Gemini, Artificial Intelligence, Google Gemini, Retrieval-Augmented Generation, Model Optimization, Embeddings, Workflow Management, Python Programming, Data Validation
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Javascript, Application Programming Interface (API)
★ 4.9 (11) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Node.JS, Server Side, MongoDB, Back-End Web Development, Restful API, Full-Stack Web Development, Web Applications, Database Development, Frontend Integration, Web Development, JavaScript Frameworks, Database Management, Secure Coding, Application Programming Interface (API), Software Architecture, NoSQL, API Design, Authentications, Performance Tuning, Authorization (Computing)
★ 4.2 (6) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Full-Stack Web Development, Microsoft Copilot, Frontend Integration, Application Programming Interface (API), Systems Integration, Web Applications, Web Frameworks, AI Integrations, ASP.NET, Back-End Web Development, Microsoft Development Tools, Server Side, Program Development, Development Environment, Real Time Data, Debugging, Performance Tuning
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, OpenAI API, LangChain, ChatGPT, Prompt Patterns, OpenAI, Generative AI, Multimodal Prompts, LLM Application, AI powered creativity, Generative Model Architectures, Large Language Modeling, AI Workflows, Token Optimization, Application Programming Interface (API), Application Development, Image Quality
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Google Gemini, Generative AI Agents, OpenAI API, Responsible AI, Content Creation, Large Language Modeling, Hugging Face
★ 4.6 (17) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Deployment, Application Deployment, MLOps (Machine Learning Operations), Cloud Deployment, Unit Testing, Docker (Software), Containerization, Kubernetes, AI Workflows, IBM Cloud, AI Integrations, Model Evaluation, Machine Learning, Business Metrics, Natural Language Processing, Time Series Analysis and Forecasting, Continuous Monitoring, Data Science, Python Programming, Design Thinking
★ 4.5 (60) · Advanced · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Role-Based Access Control (RBAC), Authentications, Secure Coding, ASP.NET, Endpoint Security, Microsoft Copilot, Data Security, Back-End Web Development, Authorization (Computing), Application Security, JSON, Identity and Access Management, Data Storage, Encryption
★ 4.6 (14) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Digital Transformation, Google Workspace, Google Cloud Platform, Business Transformation, Cloud Development, Cloud Applications, Cloud Management, Application Development, Collaborative Software, Productivity Software, Data Storage Technologies, Cloud Solutions, Data Storage, Cloud Storage, Artificial Intelligence and Machine Learning (AI/ML), Cloud Computing, Cost Management, Cloud Platforms, Cloud Infrastructure, Applied Machine Learning
★ 4.7 (66) · Beginner · Course · 1 - 3 Months

Skills you'll gain: JUnit, Apache Maven, Unit Testing, Spring Framework, Spring Boot, Restful API, API Testing, Software Testing, Test Case, Application Programming Interface (API), Gradle, Build Tools, Software Development Tools, Integration Testing, Application Frameworks, Authentications
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Angular, Authorization (Computing), JavaScript Frameworks, Application Programming Interface (API), TypeScript, Javascript, Web Development
★ 4.7 (18) · Advanced · Guided Project · Less Than 2 Hours