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: Node.JS, Role-Based Access Control (RBAC), TypeScript, Authentications, Server Side, Jest (JavaScript Testing Framework), Web Frameworks, Back-End Web Development, Authorization (Computing), MongoDB, Object-Relational Mapping, Web Development Tools, Web Applications, Identity and Access Management, Unit Testing, Test Script Development, Web Development, Database Management, Application Programming Interface (API), Javascript and jQuery
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: iOS Development, Apple iOS, Swift Programming, Core Data (Software), Apple Xcode, Mobile Development, User Interface (UI), User Interface (UI) Design, UI Components, Integrated Development Environments, Debugging, Data Persistence, Data Management, Programming Principles, Application Programming Interface (API), Data Storage, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Infrastructure, Cloud Deployment, Kubernetes, Application Deployment, Site Reliability Engineering, Google App Engine, Google Cloud Platform, Microservices, Network Architecture, CI/CD, Service Level, Cloud Computing Architecture, Systems Design, Cloud Management, Cloud Security, Restful API, API Design, Network Planning And Design, Software Design, DevOps
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Web Applications, Penetration Testing, Application Security, Security Controls, Security Testing, Vulnerability Assessments, Application Programming Interface (API), Exploitation techniques, Web Servers, Cloud Security
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Software Design Patterns, Unified Modeling Language, Software Design, Java, Java Programming, Software Architecture, User Interface and User Experience (UI/UX) Design, API Design, Software Development, AI Integrations
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Ansible, Puppet (Configuration Management Tool), Software-Defined Networking, Network Administration, Security Awareness, IT Automation, Chef (Configuration Management Tool), Virtual Private Networks (VPN), JSON, Authentications, Network Engineering, Computer Security Awareness Training, Network Infrastructure, Authorization (Computing), Identity and Access Management, Configuration Management, Cyber Security Policies, Remote Access Systems, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Audit Working Papers, Compliance Auditing, Ledgers (Accounting), Transaction Processing, Governance Risk Management and Compliance, Internal Auditing, Governance, Audit Planning, Auditors Report, Application Frameworks, Data Governance, Risk Control, Security Controls, IT General Controls (ITGC), Investigation, Law, Regulation, and Compliance, Role-Based Access Control (RBAC), Identity and Access Management, Data Access, Data Integrity
Beginner · Course · 1 - 3 Months

Codio
Skills you'll gain: Model View Controller, Test Driven Development (TDD), Restful API, Vue.JS, Full-Stack Web Development, Frontend Integration, JavaScript Frameworks, Web Applications, Application Programming Interface (API), Unit Testing, Server Side, Web Components, Software Design Patterns, Javascript, HTML and CSS, Event-Driven Programming, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI Agents, Agentic systems, Generative AI, Generative Model Architectures, Agentic Workflows, Responsible AI, AI Orchestration, Large Language Modeling, AI Security, Artificial Intelligence, LLM Application, Tool Calling, LangChain, Restful API, Automation, Natural Language Processing, Python Programming, Ethical Standards And Conduct
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Test Driven Development (TDD), Unit Testing, Test Script Development, Behavior-Driven Development, API Testing, Code Coverage, Development Testing, Software Testing, Test Automation, Test Tools, Test Planning, Test Case, Maintainability, Software Quality (SQA/SQC), Software Quality Assurance, API Design, Application Programming Interface (API), Event-Driven Programming, Mockups, Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Serverless Computing, Containerization, Google Cloud Platform, Google App Engine, Cloud Infrastructure, Cloud Solutions, Hybrid Cloud Computing, Cloud Platforms, Cloud Applications, Cloud-Native Computing, Application Programming Interface (API), Cloud Computing, Application Deployment, Computing Platforms, Platform As A Service (PaaS), Multi-Cloud, Cloud Deployment, Data Migration, Leadership and Management, Finance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Program Development, Full-Stack Web Development, Event-Driven Programming
Beginner · Course · 1 - 4 Weeks