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: Restful API, API Design, API Testing, Spring Boot, Authentications, Test Automation, JSON, Application Programming Interface (API), Test Script Development, Application Deployment, Spring Framework, Object-Relational Mapping, Web Services, Software Quality Assurance, Object Oriented Design, Software Testing, Business Logic, Back-End Web Development, Java Programming, Java
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Restful API, API Design, Application Deployment, Application Programming Interface (API), Authentications, API Testing, Cloud Deployment, Web Services, Web Frameworks, User Provisioning, Unit Testing, Continuous Deployment, User Accounts, Test Script Development, Email Automation, Debugging, Operational Databases, Back-End Web Development, Software Testing, Continuous Integration
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: API Gateway, Application Programming Interface (API), Kubernetes, Cloud API, Google Cloud Platform, Hybrid Cloud Computing, Application Performance Management, Capacity Management, Istio, Scalability, API Testing, Security Controls, System Monitoring, Apache Cassandra, Application Deployment, Patch Management, Proxy Servers, Data Security, Cloud Deployment, Package and Software Management
Beginner · Specialization · 1 - 3 Months

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

Skills you'll gain: ASP.NET, .NET Framework, C# (Programming Language), Microsoft Visual Studio, Application Programming Interface (API), Web Development Tools, Restful API, Microsoft Azure, Web Applications, Application Frameworks, Application Development, Development Environment, Event-Driven Programming, Middleware, Software Installation
Intermediate · Course · 1 - 3 Months
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), API Design, Cloud API, Restful API, Server Side, Web Development, Servers, JSON, Software Documentation, Web Applications, Javascript, Web Services, Technical Documentation, Application Security
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Security, Open Web Application Security Project (OWASP), Vulnerability Assessments, Computer Security Incident Management, Vulnerability Management, Vulnerability Scanning, Application Security, Security Controls, Secure Coding, Security Testing, API Testing, Authentications, Threat Management, Hardening, Dependency Analysis, Package and Software Management, Application Programming Interface (API), Risk Analysis, Data Validation, Supply Chain
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Anthropic Claude, Application Programming Interface (API), LLM Application, JSON, AI Integrations, Generative AI Agents, Agentic systems, Scripting, Token Optimization, Artificial Intelligence, Automation, Development Environment
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: API Design, API Gateway, Cloud API, Application Programming Interface (API), Restful API, Google Cloud Platform, Continuous Deployment, CI/CD, Application Deployment, Middleware, Software Versioning, Web Services, Cloud Deployment, Continuous Integration, Proxy Servers
Beginner · Course · 1 - 3 Months