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.

Board Infinity
Skills you'll gain: Application Programming Interface (API), GraphQL, API Design, Restful API, Postman API Platform, OAuth, Software Documentation, Authentications, Debugging, Real Time Data, Web Development, JavaScript Frameworks, Node.JS, JSON, Authorization (Computing), Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JSON, Restful API, HTML and CSS, Web Design, Cloud API, Web Development, Application Programming Interface (API), Web Applications, Responsive Web Design, Real Time Data, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Prompt Engineering, LangChain, ChatGPT, Multimodal Prompts, OpenAI, Generative AI, No-Code Development, LLM Application, Microsoft Power Platform, Application Programming Interface (API), Email Automation, Application Development, Microsoft Power Automate/Flow, Serverless Computing, JSON, Microsoft Azure, Microsoft Outlook, Email Marketing, Large Language Modeling, Python Programming
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Postman API Platform, Data Validation, Application Programming Interface (API), Restful API, Secure Coding, Verification And Validation, Microservices, Performance Testing, Security Testing, Data Integrity, Authentications
Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: API Design, Application Programming Interface (API), Data Validation, Restful API, Application Frameworks, Performance Tuning, Software Versioning, Django (Web Framework), Software Documentation, Middleware, Node.JS, Application Performance Management, Scalability, JSON, Spring Boot, Test Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, OpenAI, Large Language Modeling, ChatGPT, Generative AI, Application Performance Management, LLM Application, Image Analysis, Application Programming Interface (API), Multimodal Prompts, Animations, Tool Calling, Image Quality, File Management, Visualization (Computer Graphics), Computer Graphics, Generative AI Agents, Application Development, Python Programming, Computer Science
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Postman API Platform, OAuth, Application Programming Interface (API), Performance Testing, Security Testing, Software Testing, Restful API, Authentications, Web Development Tools, Application Security
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: JSON, Test Automation, Application Programming Interface (API), Restful API, Unit Testing, Software Testing, Test Case, Integration Testing, Functional Testing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Restful API, Web Applications, Cascading Style Sheets (CSS), Application Programming Interface (API), Web Services, HTML and CSS, JSON, Javascript, Software Development
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Microsoft SQL Servers, C# (Programming Language), Web Services, Database Management, JSON, Back-End Web Development, SQL, Database Design, Object Oriented Programming (OOP), API Design, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Gateway, Serverless Computing, Restful API, Node.JS, Microsoft Azure, Application Programming Interface (API), API Design, Web Services, Cloud Applications
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Behavior-Driven Development, Apache Maven, Restful API, Test Automation, JSON, Scalability, Application Programming Interface (API), Test Case, Test Data, Authentications, Java, Software Testing, Data Mapping
Mixed · Course · 1 - 4 Weeks