RESTful API courses can help you learn how to design, implement, and consume APIs, as well as understand HTTP methods, status codes, and data formats like JSON and XML. You can build skills in authentication techniques, error handling, and versioning strategies to ensure robust API functionality. Many courses introduce tools such as Postman for testing APIs and Swagger for documentation, that support streamlining the development process and enhancing collaboration among teams.

Board Infinity
Skills you'll gain: Node.JS, Server Side, MongoDB, Back-End Web Development, Restful API, Full-Stack Web Development, Web Applications, Database Development, Frontend Integration, Web Development, JavaScript Frameworks, Database Management, Secure Coding, Application Programming Interface (API), Software Architecture, NoSQL, API Design, Authentications, Performance Tuning, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Application Programming Interface (API), API Gateway, GraphQL, API Design, Restful API, OAuth, Software Documentation, Authentications, Debugging, Real Time Data, Authorization (Computing), Version Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Postman API Platform, Application Programming Interface (API), Software Testing, Restful API, Development Environment, Collaborative Software, Test Tools, Web Applications, Data Import/Export, Authentications
★ 4.4 (24) · Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Business Logic, SAP Applications, Unit Testing, Restful API, Application Deployment, Behavior-Driven Development, Full-Stack Web Development, Test Script Development, Application Development, Development Testing, Web Applications, Enterprise Application Management, Application Frameworks, Software Architecture, Enterprise Architecture, UI Components, Data Modeling, Database Development
★ 3 (10) · Advanced · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Microsoft SQL Servers, C# (Programming Language), Web Services, Database Management, Database Development, JSON, Back-End Web Development, SQL, Database Design, Server Side, .NET Framework, Object Oriented Programming (OOP), Application Programming Interface (API), API Design, Database Architecture and Administration, Programming Principles
★ 4.1 (14) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Model View Controller, Spring Framework, Restful API, Spring Boot, Web Services, Frontend Integration, JSON, YAML, Web Applications, Configuration Management, Angular, Java Programming, Software Architecture, Extensible Markup Language (XML)
★ 4.1 (224) · 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

University of Alberta
Skills you'll gain: Service Oriented Architecture, API Design, Web Services, Simple Object Access Protocol (SOAP), Microservices, Restful API, Software Architecture, Application Programming Interface (API), Web Applications, Software Design, JSON, Web Development, Extensible Markup Language (XML), Android Development
★ 4.5 (592) · Intermediate · Course · 1 - 4 Weeks

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
★ 4.6 (19) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: API Design, Application Programming Interface (API), Postman API Platform, Software Documentation, OAuth, CI/CD, Web Services, Authentications, Continuous Integration, Continuous Deployment
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Secure Coding, API Testing, API Design, Application Programming Interface (API), Security Testing, Penetration Testing, Application Security, Restful API, Authentications, Exploit development, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Assessments, Exploitation techniques, Data Security, Business Logic, Authorization (Computing), Scenario Testing, Security Controls, Development Environment, Cybersecurity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: GitHub, Version Control, API Testing, Authentications, Software Versioning, Test Tools, Test Script Development, Test Case, Eclipse (Software), Verification And Validation, Extensible Markup Language (XML), Software Installation
Intermediate · Course · 3 - 6 Months