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: JUnit, Spring Framework, Spring Boot, Java Programming, Java, Apache Maven, Unit Testing, Gradle, Application Programming Interface (API), Google Cloud Platform, Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Hibernate (Java), Cloud Deployment, Back-End Web Development, YAML, Restful API, Software Configuration Management, Load Balancing
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Node.JS, Server Side, MongoDB, Back-End Web Development, Restful API, Full-Stack Web Development, Web Applications, Database Development, Frontend Integration, Web Development, JavaScript Frameworks, Database Management, Secure Coding, Application Programming Interface (API), Software Architecture, NoSQL, API Design, Authentications, Performance Tuning, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Project Documentation, Layout Design, Target Audience, Design, Graphic and Visual Design, Ethical Standards And Conduct, Professional Networking, Collaborative Software, Driving engagement, Diversity and Inclusion, Content Management Systems, Portfolio Management
Beginner · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Android Jetpack, Mobile Development Tools, Extensible Markup Language (XML), Data Management, Application Programming Interface (API)
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Application Deployment, Microservices, Docker (Software), Spring Boot, Spring Framework, Containerization, CI/CD, API Design, Application Programming Interface (API), Java Programming, Hibernate (Java), Back-End Web Development, Systems Architecture, Java, Software Architecture, Software Design, Authentications, Software Development, IntelliJ IDEA
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Keras (Neural Network Library), Tensorflow, Model Training, Applied Machine Learning, Convolutional Neural Networks, Deep Learning, Model Optimization, Machine Learning, Computer Vision
Intermediate · Guided Project · Less Than 2 Hours

DeepLearning.AI
Skills you'll gain: Anthropic Claude, Prompt Engineering, Multimodal Prompts, Prompt Patterns, Tool Calling, LLM Application, Responsible AI, AI literacy, Agentic Workflows, Human Computer Interaction, Token Optimization, AI Workflows
Beginner · Project · Less Than 2 Hours

Skills you'll gain: IT Automation, API Design, Automation, Cloud Solutions, Server Side, Back-End Web Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microservices, .NET Framework, ASP.NET, Microsoft Azure, Object-Relational Mapping, OAuth, Cloud Storage, API Gateway, Software Architecture, Payment Systems, Authentications, Data Storage, Systems Architecture, C# (Programming Language), Cloud Services, Model View Controller, Application Programming Interface (API), Software Design Patterns, Restful API, Identity and Access Management
Beginner · Course · 3 - 6 Months

Skills you'll gain: AI Orchestration, Prompt Patterns, AI Workflows, Agentic Workflows, AI Integrations, OpenAI API, Token Optimization, Test Script Development, Context Management, Code Reusability, Secure Coding, Memory Management, Authentications
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Query Languages, Software Installation, Performance Tuning, Distributed Computing, Scripting, Scalability, Data Modeling, Application Programming Interface (API), Cloud Deployment
Beginner · Course · 1 - 4 Weeks