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.

Duke University
Skills you'll gain: Algorithms, Debugging, Java, Computer Programming, Software Design, Programming Principles, Object Oriented Programming (OOP), Program Development, Data Analysis Software, Data Import/Export, File I/O, Integrated Development Environments
Beginner · Course · 1 - 3 Months

Skills you'll gain: Test Script Development, API Testing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Generative AI Agents, OpenAI API, Command-Line Interface, AI Enablement, Agentic systems, API Testing, Rust (Programming Language), Key Management, Software Technical Review, Verification And Validation, Unit Testing, Solution Architecture, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Persistence, JSON, User Interface (UI), User Interface and User Experience (UI/UX) Design, Databases, Interactive Data Visualization, Debugging, Database Management, Application Development, Mobile Development, Real Time Data, Application Programming Interface (API), Data Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Power Platform, Data Analysis Expressions (DAX), Power BI, Microsoft Azure, Microsoft Power Automate/Flow, Dashboard, Workflow Management, Data Integration, Data Modeling, Multi-Tenant Cloud Environments, Enterprise Application Management, Data Visualization Software, Postman API Platform, Serverless Computing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, AI Workflows, AI Orchestration, Generative AI, AI Enablement, API Design, AI Security, Software Development, Database Design, Automation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: jQuery, Ajax, Javascript and jQuery, JSON, Animations, Event-Driven Programming, Debugging, JavaScript Frameworks, UI Components, Application Programming Interface (API), Web Applications, Web Development Tools, Responsive Web Design, Javascript, Interactive Design, HTML and CSS, Game Design, Data Validation, User Interface (UI) Design
Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Query Languages, Data Access, Database Management, Data Manipulation, Cloud API, Google Cloud Platform, Data Analysis
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: LangChain, Development Environment, Agentic systems, AI Workflows, Artificial Intelligence, Tool Calling, LLM Application, Database Systems, Database Management, SQL, Database Application, OpenAI API, Software Development Tools, Prompt Engineering
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: React.js, Performance Tuning, Frontend Performance, Front-End Web Development, Application Performance Management
Advanced · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Tensorflow, Model Deployment, Keras (Neural Network Library), Feature Engineering, Google Cloud Platform, Data Pipelines, Jupyter, Machine Learning Methods, Deep Learning, Data Preprocessing, Embeddings
Intermediate · Course · 1 - 3 Months

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