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.

Scrimba
Skills you'll gain: Prompt Engineering, Responsible AI, OpenAI API, Generative AI, Data Ethics, AI Security, ChatGPT, Artificial Intelligence, Application Programming Interface (API), Computer Programming, Key Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Continuous Integration, Test Automation, Authentications, CI/CD, Test Script Development, API Testing, Software Testing, Unit Testing, Behavior-Driven Development, Web Development Tools, Test Case, GitHub, User Interface (UI)
Intermediate · Course · 3 - 6 Months

Scrimba
Skills you'll gain: Anthropic Claude, OpenAI API, Prompt Engineering, LLM Application, Generative AI, Large Language Modeling, Multimodal Prompts, Artificial Intelligence, Responsible AI, Cloud Deployment, Restful API, API Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, Model Context Protocol, Agentic Workflows, Prompt Engineering, Anthropic Claude, AI Orchestration, Application Programming Interface (API), Prompt Patterns, Restful API, Prompt Engineering Tools, LLM Application, JSON, Generative AI Agents, Tool Calling, Generative AI, Artificial Intelligence, Agentic systems, Automation, Scalability, Servers
Intermediate · Specialization · 1 - 3 Months

Anthropic
Skills you'll gain: Claude Code, Command-Line Interface, Tool Calling, LLM Application, Software Development Tools, GitHub, Context Management, Code Review, Computer Programming Tools, Software Development, Generative AI Agents, Automation, Software Engineering
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: LangGraph, Generative AI Agents, Agentic systems, AI Workflows, OpenAI API, LLM Application, Artificial Intelligence, User Interface (UI), Prompt Engineering, Natural Language Processing, Python Programming, Context Management
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: ASP.NET, Microsoft Copilot, .NET Framework, Application Programming Interface (API), Middleware, Server Side, Restful API, C# (Programming Language), Back-End Web Development, Application Frameworks, JSON, Software Documentation, Secure Coding, Programming Principles, Extensible Markup Language (XML)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Deployment, Applied Machine Learning, Predictive Modeling, Microsoft Azure, No-Code Development, Machine Learning, Data Preprocessing, Cloud Deployment, Feature Engineering, Model Evaluation, Data Science, Data Analysis, Classification Algorithms
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Model View Controller, .NET Framework, JSON, Application Programming Interface (API), Web Services, Middleware, Back-End Web Development, Server Side, Extensible Markup Language (XML)
Intermediate · Course · 1 - 4 Weeks

Saïd Business School, University of Oxford
Skills you'll gain: FinTech, Financial Inclusion, Financial Services, Responsible AI, Data Ethics, Artificial Intelligence, Mobile Banking, Banking Services, Data Sharing, Financial Regulation, Data Governance, Application Programming Interface (API), Financial Data, Banking, Finance, Artificial Intelligence and Machine Learning (AI/ML), Business Ethics, Innovation, General Data Protection Regulation (GDPR), Natural Language Processing
Beginner · Specialization · 3 - 6 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Mobile Development, JSON, Application Development, Restful API, Google Cloud Platform, Application Programming Interface (API), Data Persistence, User Interface (UI) Design, User Interface (UI), Animations
Mixed · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Model Deployment, Microsoft Azure, Python Programming, Machine Learning, Machine Learning Algorithms, Data Science, Image Analysis, Computer Vision, Natural Language Processing, Application Programming Interface (API)
Advanced · Course · 1 - 3 Months