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: Collaborative Software, Application Programming Interface (API), Restful API, Software Development Tools, Software Design, Scenario Testing, Software Documentation, Mockups, Web Services, Software Versioning
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Performance Tuning, Development Testing, Software Testing, Unit Testing, Software Documentation, Application Programming Interface (API), Test Script Development, Code Reusability, Web Applications, Test Driven Development (TDD), Technical Documentation, Frontend Performance, Debugging, Performance Testing, Maintainability, Javascript, Software Design Patterns, Software Architecture, Secure Coding, Data Transformation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Test Script Development, Unit Testing, Test Case, Development Testing, Test Tools, React.js, API Testing, Software Testing, Web Development Tools, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: LLM Application, Tool Calling, Large Language Modeling, Retrieval-Augmented Generation, Command-Line Interface, Embeddings, Python Programming, Application Development, Vector Databases, User Interface (UI), Software Installation, Restful API, Development Environment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Middleware, Web Services, Communication Systems, Data Store, Service Oriented Architecture, NoSQL
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Web Scraping, Extensible Markup Language (XML), Web Development Tools, Scripting, Hypertext Markup Language (HTML), Web Applications, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Google Gemini, Gemini, Generative AI, Google Cloud Platform, AI Integrations, Multimodal Prompts, Cloud Deployment, Prompt Engineering, LLM Application, Application Development, Application Programming Interface (API), Application Deployment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Deepseek, DeepSeek API, Hugging Face, Large Language Modeling, LLM Application, AI Personalization, ChatGPT, Deep Learning, Open Source Technology, AI literacy, Model Deployment, AI Integrations, Applied Machine Learning, Application Programming Interface (API), Business Process Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Algorithms, Application Programming Interface (API), Data Structures
Intermediate · Guided Project · Less Than 2 Hours

DeepLearning.AI
Skills you'll gain: Anthropic Claude, Prompt Engineering, Multimodal Prompts, Prompt Patterns, Tool Calling, LLM Application, Responsible AI, AI literacy, Agentic Workflows, Human Computer Interaction, Token Optimization, AI Workflows
Beginner · Project · Less Than 2 Hours
Coursera
Skills you'll gain: API Testing, Test Script Development, Scenario Testing, Software Testing, Test Automation, Maintainability, Verification And Validation, User Interface (UI), Security Testing, Test Data, Scalability, Debugging, Code Reusability, Authentications, Compliance Reporting, Automation
Intermediate · Course · 1 - 4 Weeks