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.

Edureka
Skills you'll gain: Angular, Application Deployment, JavaScript Frameworks, Software Testing, Test Tools, Web Development Tools, Unit Testing, Application Performance Management, CI/CD, Continuous Integration, Web Applications, TypeScript, Ajax, Application Lifecycle Management, Secure Coding, Web Development, Code Coverage, Software Architecture, Command-Line Interface, Version Control
Intermediate · Specialization · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Software-Defined Networking, YAML, Network Architecture, Network Protocols, Network Routing, Computer Networking, Data Modeling, Extensible Markup Language (XML), JSON, Automation, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, Command-Line Interface, Cloud Management, Cloud API, Cloud Computing, User Accounts, Authorization (Computing), Google Cloud Platform, Role-Based Access Control (RBAC), Microsoft Azure, Software Installation, VPN Clients
Beginner · Project · Less Than 2 Hours

Fundação Instituto de Administração
Skills you'll gain: Digital Transformation, IT Service Management, Information Technology Infrastructure Library, Service Management, Interoperability, Business Transformation, Data Strategy, DevOps, Information Systems Security, Cybersecurity, Systems Integration, Innovation, Application Programming Interface (API), Service Design, Service Level, Organizational Strategy, Mobile Banking, Social Media, E-Commerce, Organizational Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: JUnit, Apache Maven, Spring Framework, Spring Boot, Model View Controller, Unit Testing, Microservices, Application Development, Redis, Restful API, YAML, Java, Java Programming, MongoDB, Application Deployment, Application Design, NoSQL, Ajax, Hibernate (Java), Software Testing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: ASP.NET, .NET Framework, Software Design Patterns, Maintainability, Software Architecture, Object Oriented Design, C# (Programming Language), Microsoft Visual Studio, API Design, Restful API, Development Testing, User Interface (UI), Debugging, Unit Testing, Systems Architecture, Front-End Web Development, Integration Testing, Authentications
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: React Redux, React.js, Cascading Style Sheets (CSS), JavaScript Frameworks, Front-End Web Development, Network Routing, User Interface (UI), UI Components, Web Frameworks, Maintainability, Authentications, Web Development Tools, Application Frameworks, Application Programming Interface (API), Web Design, Restful API, Authorization (Computing), Software Design, Javascript, Web Development
Intermediate · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud Security, Real Time Data, Cloud Management, Digital Transformation, Serverless Computing, Google Cloud Platform, Cloud Infrastructure, Artificial Intelligence and Machine Learning (AI/ML), Data Security, Application Programming Interface (API), Cloud Computing, Looker (Software), Business Intelligence, Cost Management, Data Strategy, Data Transformation, Containerization, Cybersecurity, Cloud Applications, Artificial Intelligence
Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Django (Web Framework), React.js, Authentications, Performance Tuning, Scalability, Full-Stack Web Development, Unit Testing, Development Testing, Software Testing, Development Environment, Restful API, Javascript, Python Programming
Advanced · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Data Lakes, Google Cloud Platform, Data Management, Cloud API, Data Infrastructure, Data Analysis
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Kubernetes, Istio, Private Cloud, Cloud Applications, Google Cloud Platform, Multi-Tenant Cloud Environments, Cloud API, Application Deployment, General Networking, Network Infrastructure
Advanced · Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Restful API, Web Services, Java Platform Enterprise Edition (J2EE), Software Design, Java, Application Programming Interface (API), JSON, Web Applications, Software Architecture, Server Side
Beginner · Course · 1 - 4 Weeks