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: Authentications, OAuth, Postman API Platform, Restful API, Application Programming Interface (API), JSON, Test Automation, Data Validation, JUnit, Extensible Markup Language (XML), Selenium (Software), Mockups, Test Tools, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: ASP.NET, C# (Programming Language), Microsoft Visual Studio, Application Programming Interface (API), Web Development Tools, Restful API, Microsoft Azure, Web Applications, Application Development, Development Environment, Middleware
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cucumber (Software), Behavior-Driven Development, JSON, Gherkin (Scripting Language), Restful API, Application Programming Interface (API), Test Tools, Test Case, Test Planning, JUnit, Software Testing, Test Engineering, Security Testing, Test Data, Test Automation, OAuth, Apache Maven, Authentications, Development Environment, Eclipse (Software)
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: API Design, Restful API, Application Deployment, Spring Boot, Back-End Web Development, Data Modeling, Software Architecture, Object-Relational Mapping, System Configuration, Software Design, Application Development, Java Platform Enterprise Edition (J2EE), Business Logic
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, OpenAI, Responsible AI, LLM Application, Data Ethics, Image Analysis, Application Programming Interface (API), Generative AI, Artificial Intelligence, Natural Language Processing, Large Language Modeling, Computer Vision, Application Deployment, Development Environment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Application Programming Interface (API), Cloud API, API Design, Continuous Deployment, CI/CD, Restful API, Application Deployment, Google Cloud Platform, Continuous Integration, Middleware, Application Performance Management, JSON, Software Versioning, Proxy Servers, Scalability, Extensible Markup Language (XML)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, ChatGPT, Application Programming Interface (API), OpenAI, Authentications, Large Language Modeling, Key Management, Performance Tuning, Debugging
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: OpenAI, LLM Application, Generative AI Agents, Application Programming Interface (API), Performance Testing, Artificial Intelligence, Prompt Engineering, Application Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Spring Boot, API Design, Spring Framework, JSON, Object-Relational Mapping, Business Logic, Data Modeling, Server Side, Software Architecture, Data Access
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Spring Boot, Real Time Data, Java, Unit Testing, Restful API, JSON, Integration Testing, Distributed Computing, Scalability, Debugging
Intermediate · Course · 3 - 6 Months

Skills you'll gain: API Design, JavaScript Frameworks, Query Languages, Business Logic, Software Architecture
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Data Encryption Standard, Encryption, Advanced Encryption Standard (AES), Application Security, Public Key Cryptography Standards (PKCS), Secure Coding, Data Security, Web Development, Email Security, PHP (Scripting Language), Algorithms, User Provisioning
Intermediate · Course · 1 - 4 Weeks