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.

Coursera
Skills you'll gain: API Testing, Application Programming Interface (API), Test Tools, Behavior-Driven Development, Test Automation
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Middleware, React Redux, React.js, Scalability, Application Programming Interface (API), Maintainability, Context Management, Frontend Performance
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Test Automation, Test Script Development, Test Tools, Application Programming Interface (API), Restful API, Software Testing, Code Reusability, Configuration Management, Java Programming, Maintainability
Intermediate · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Data Persistence, API Design, API Testing, Test Tools, Javascript, Development Environment
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Cloud Platform, Data Store, Cloud API, Health Information Management, Health Informatics, Application Programming Interface (API), Cloud Management, Health Care, Cloud-Based Integration, Cloud Computing, Clinical Data Management, Health Technology
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Restful API, Postman API Platform, API Design, Application Programming Interface (API), .NET Framework, API Testing, Authentications, Object-Relational Mapping, Development Environment, Microsoft Visual Studio, Web Development Tools, Endpoint Security, Software Design Patterns, Data Mapping, Identity and Access Management, Data Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Web Applications, Frontend Integration, Authentications, Front-End Web Development, Authorization (Computing), Application Programming Interface (API), Secure Coding, Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Scalability, Restful API, Rust (Programming Language), Application Programming Interface (API), Build Tools, Package and Software Management, OS Process Management, Video Game Development, Server Side, Web Development, Program Development, Programming Principles, TCP/IP
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Redis, Restful API, ASP.NET, .NET Framework, Application Programming Interface (API), Object-Relational Mapping, API Design, PostgreSQL, Middleware, Maintainability, Software Architecture, Software Design Patterns, Distributed Computing, Data Validation
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: OpenAI API, OpenAI, AI Workflows, LLM Application, AI Integrations, Generative AI Agents, AI Personalization, Agentic Workflows, Application Programming Interface (API), Performance Testing, Artificial Intelligence, Context Management, Application Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Relational Databases, API Design, ASP.NET, Object-Relational Mapping, Databases, Query Languages, Back-End Web Development, Application Programming Interface (API), Restful API, SQL, Data Access, Data Manipulation, C# (Programming Language), .NET Framework, Server Side
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Cloud API, Google Cloud Platform, Data Store, Medical Privacy, Application Programming Interface (API), Health Informatics, Health Information Management and Medical Records, Health Information Management, Health Technology, Data Import/Export, Cloud Computing, Data Security, Medical Imaging
Intermediate · Project · Less Than 2 Hours