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: Jest (JavaScript Testing Framework), User Acceptance Testing (UAT), Cucumber (Software), Postman API Platform, Software Testing, Behavior-Driven Development, Selenium (Software), Test Driven Development (TDD), Performance Stress Testing, API Testing, Unit Testing, Performance Testing, Application Programming Interface (API), User Interface (UI), Javascript
★ 4.2 (15) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Identity and Access Management, Cloud Infrastructure, Google Cloud Platform, Google App Engine, Microservices, Cloud Applications, Kubernetes, Service Level, Cloud Deployment, Infrastructure As A Service (IaaS), Terraform, Cloud Computing, API Design, Cloud Services, Cloud Management, Restful API, Cloud Storage, Cloud Computing Architecture, Cloud-Native Computing, Service Level Agreement
★ 4.9 (722) · Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Cloud Applications, Cloud Development, Cloud-Native Computing, Google Cloud Platform, Cloud API, Application Development, Data Store, Cloud Hosting, Cloud Storage, Cloud Services, Software Development, Data Storage, Cloud Platforms
★ 4.4 (29) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: LangChain, Prompt Engineering, LLM Application, Large Language Modeling, Retrieval-Augmented Generation, Vector Databases, Tool Calling, Embeddings, OpenAI API, ChatGPT, Google Gemini, AI Workflows, Generative AI Agents, Token Optimization, Agentic Workflows
★ 4.4 (39) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JavaScript Frameworks, Test Automation, API Testing, Test Tools, Ajax, Software Testing, Scenario Testing, Restful API
★ 4.3 (10) · Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Model Evaluation, MLOps (Machine Learning Operations), Regression Testing, Kubernetes, Docker (Software), Feature Engineering, Containerization, Software Documentation, Data Pipelines, Git (Version Control System), Apache Airflow, Technical Documentation, Microservices, CI/CD, Unit Testing, API Design, Decision Intelligence, Performance Metric, Python Programming, Version Control
Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Large Language Modeling, LLM Application, Prompt Patterns, Prompt Engineering, Microsoft Azure, OpenAI API, Retrieval-Augmented Generation, OpenAI, Model Deployment, Risk Management Framework, MLOps (Machine Learning Operations), Embeddings, Cloud Deployment, Application Deployment, Python Programming
★ 4.2 (53) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Apache Maven, Spring Framework, Microservices, Spring Boot, Java, Java Programming, Back-End Web Development, Software Architecture, Server Side, Load Balancing, Web Services, Restful API, Web Applications
★ 4.5 (52) · Advanced · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Javascript, Application Programming Interface (API), Code Reusability, Software Design Patterns, Data Management, Data Structures, Web Development, Computational Logic, Programming Principles, Data Import/Export, Software Development, Software Engineering, Performance Tuning
★ 4.7 (20) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, Large Language Modeling, LLM Application, Development Environment, Prompt Patterns, Multimodal Prompts, Tool Calling, Embeddings, Generative AI Agents, Vector Databases, User Interface (UI), OpenAI API, Generative AI, AI Workflows, Program Development, Agentic systems, Plot (Graphics), AI Integrations, Image Analysis, Augmented Reality
★ 4.4 (20) · Intermediate · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Agentic systems, Model Context Protocol, Vector Databases, Gemini, Generative AI Agents, Google Gemini, Retrieval-Augmented Generation, Artificial Intelligence, Generative AI, Embeddings, MongoDB, Node.JS, API Design, TypeScript, PostgreSQL, Web Applications, Systems Architecture, Database Management, Debugging, Machine Learning
Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Cross Platform Development, Microservices, User Interface (UI), User Interface and User Experience (UI/UX) Design, DevOps, UI Components, User Interface (UI) Design, UI/UX Strategy, Secure Coding, Development Testing, Mobile Development Tools, Unit Testing, Software Testing, Application Development, Ajax, Authentications, Version Control
★ 4.2 (56) · Intermediate · Specialization · 1 - 3 Months