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.

Coursera
Skills you'll gain: Vector Databases, Query Languages, Embeddings, Database Management, Docker (Software), Data Management, Data Mapping, Configuration Management, Restful API, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Design, User Interface and User Experience (UI/UX) Design, Software Design, Application Development, Front-End Web Development, Performance Tuning, Software Design Patterns, Real Time Data, API Design, Application Performance Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MLOps (Machine Learning Operations), Continuous Integration, Artificial Intelligence and Machine Learning (AI/ML), DevOps, Service Level Agreement, API Design, Performance Measurement, Performance Analysis
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Browser Compatibility, Performance Testing, Security Testing, Integration Testing, System Testing, API Testing, Development Environment, Software Testing, User Acceptance Testing (UAT), Acceptance Testing, Test Tools, Application Security, Test Automation, Responsive Web Design, Vulnerability Scanning, Web Applications, Docker (Software), User Interface (UI), Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Event-Driven Programming, .NET Framework, Application Deployment, Debugging, Software Testing, Application Development, Microsoft Visual Studio, User Interface (UI), Postman API Platform, Application Programming Interface (API), Integrated Development Environments, User Interface and User Experience (UI/UX) Design, File Management, Software Documentation
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Due Diligence, Backlogs, Postman API Platform, Strategic Decision-Making, Data Integrity, Data Maintenance, Needs Assessment, Product Knowledge, Technical Management, Stakeholder Communications, Data Manipulation, Requirements Analysis, Process Analysis, Automation, Restful API, Application Programming Interface (API), Business Requirements, Vendor Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Orchestration, AI Workflows, LangGraph, Generative AI Agents, Agentic systems, OpenAI API, Enterprise Application Management, Tool Calling, OAuth, Middleware, Performance Tuning, Real Time Data, Interoperability, API Gateway, Agentic Workflows, Software Development Tools, LLM Application, Prompt Engineering, Retrieval-Augmented Generation, Application Programming Interface (API)
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: OAuth, JSON, Data Wrangling, Application Programming Interface (API), API Design, Application Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, LLM Application, Application Development, No-Code Development, AI Enablement, OAuth, Application Programming Interface (API), Real Time Data, Key Management, Authentications, Data Integration, User Interface (UI), Authorization (Computing), Live Streaming, User Interface and User Experience (UI/UX) Design, Automation, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Go (Programming Language), Web Servers, JSON, Restful API, User Interface (UI), Web Applications, Server Side, Web Development, Full-Stack Web Development, Debugging, API Design, Scalability, Data Structures, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React Redux, React Native, React.js, Application Development, Scalability, Data Validation, UI Components, Web Applications, Mobile Development, Data Persistence, Business Logic, Application Design, Front-End Web Development, Software Design, Authentications, User Interface (UI), User Experience Design, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Node.JS
Beginner · Specialization · 3 - 6 Months