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.

Johns Hopkins University
Skills you'll gain: Tidyverse (R Package), Web Scraping, Data Manipulation, R Programming, Data Transformation, Data Cleansing, Big Data, Statistical Programming, Text Mining, Data Import/Export, Data Analysis, Data Structures, Performance Tuning, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Anthropic Claude, Vibe coding, OpenAI API, LLM Application, Debugging, ChatGPT, Generative AI, Large Language Modeling, Multimodal Prompts, Pseudocode, AI Workflows, Artificial Intelligence, Responsible AI, AI Enablement, Software Installation, Agentic Workflows, Code Review, Web Development Tools, Software Development
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Performance Testing, Test Tools, API Testing, Test Execution Engine, Test Data
Beginner · Guided Project · Less Than 2 Hours

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

Skills you'll gain: Flutter (Software), Mobile Development, React Native, Apple iOS, Mobile Development Tools, iOS Development, Application Development, Back-End Web Development, User Story, Android Development, User Interface (UI), Cross Platform Development, Application Programming Interface (API), Software Development Tools, User Interface and User Experience (UI/UX) Design, Application Frameworks, UI Components, Application Deployment, Data Persistence, Figma (Design Software)
Beginner · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Blockchain, Test Driven Development (TDD), Development Testing, Application Development, Integrated Development Environments, Web Development Tools, Software Architecture, Web Applications, Application Programming Interface (API), Software Development Tools, Software Design Patterns, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Routing Protocols, UI Components, JavaScript Frameworks, Frontend Performance, Front-End Web Development, Performance Tuning, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), Jest (JavaScript Testing Framework), Web Development Tools, Interaction Design, Debugging, Javascript, Web Frameworks, Data Management, API Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Test Planning, Test Tools, Prompt Engineering, Version Control, OpenAI API, Debugging, Google Gemini, Software Design Patterns, Object Oriented Design, Software Testing, GitLab, Responsible AI, Infrastructure as Code (IaC), Application Programming Interface (API), Mobile Development, Front-End Web Development, Back-End Web Development, Application Development, GitHub, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Test Driven Development (TDD), Gherkin (Scripting Language), Code Coverage, Behavior-Driven Development, Software Testing, Unit Testing, Test Automation, Test Tools, API Testing, Test Case, Test Data, User Story, Mockups, Restful API, Microservices
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Spring Framework, Microservices, JUnit, Model View Controller, Restful API, Spring Boot, Software Architecture, API Gateway, Web Services, Object-Relational Mapping, Transaction Processing, Data Persistence, Service Oriented Architecture, Cloud Computing Architecture, JSON, YAML, Load Balancing, Unit Testing, Java Programming, Enterprise Application Management
Beginner · Specialization · 1 - 3 Months

Duke University
Skills you'll gain: Prompt Engineering, Generative AI, Retrieval-Augmented Generation, ChatGPT, OpenAI, Large Language Modeling, OpenAI API, Hugging Face, Microsoft Copilot, Responsible AI, Python Programming, Machine Learning, Application Programming Interface (API)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Web Scraping, Data Transformation, Extract, Transform, Load, Data Manipulation, SQL, Integrated Development Environments, Data Processing, Databases, Application Programming Interface (API), Code Review, Python Programming, Unit Testing, Style Guides
Intermediate · Course · 1 - 4 Weeks