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.

Northeastern University
Skills you'll gain: Software Quality Assurance, Test Automation, Usability Testing, Quality Assurance, Software Testing, Usability, Test Tools, Software Development Life Cycle, Selenium (Software), Acceptance Testing, Test Script Development, Back-End Web Development, API Testing, Test Case, User Experience Design, Human Computer Interaction, Functional Testing, Cloud Computing, Database Management Systems, Leadership
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Data Import/Export, Data Capture, Unstructured Data, Scripting, Data Manipulation
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Microsoft Azure, Cloud Management, Spring Framework, Responsible AI, Java, Artificial Intelligence, Technical Services, Cloud Deployment, Restful API, Debugging
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Blockchain, Private Cloud, Go (Programming Language), Compliance Auditing, Frontend Integration, Microservices, Auditing, Application Programming Interface (API), Business Logic, Containerization, Security Testing, Debugging
Advanced · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Server Side, Restful API, Ajax, Node.JS, Web Applications, Web Servers, Web Development, Model View Controller, Javascript, JavaScript Frameworks, PHP (Scripting Language), Authentications, JSON, Hypertext Markup Language (HTML), Software Architecture, Application Development, Real Time Data, Data Storage
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apple Xcode, Apple iOS, Swift Programming, Data Persistence, JSON, Application Deployment, Mobile Development, User Interface (UI), Application Development, User Interface (UI) Design, Application Programming Interface (API), Data Structures
Beginner · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: Serverless Computing, Amazon S3, Amazon Elastic Compute Cloud, API Gateway, Cloud Security, Data Storage, Cloud Deployment, Application Deployment, File Systems, Data Encryption Standard
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AI Orchestration, Model Deployment, AI Workflows, Agentic Workflows, Generative AI Agents, Agentic systems, AI Security, Artificial Intelligence, Prompt Engineering, Generative AI, Product Support, OpenAI API, Retrieval-Augmented Generation
Advanced · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Serverless Computing, Containerization, Amazon Web Services, Data Migration, Amazon DynamoDB, Docker (Software), Databases, Cloud Engineering, Kubernetes, AWS Identity and Access Management (IAM), Operational Databases, Amazon Elastic Compute Cloud, Database Management, Performance Tuning, Amazon CloudWatch, Cloud Security, Identity and Access Management, Application Programming Interface (API), Data Security, Scalability
Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: JSON, Restful API, Ajax, Javascript, Web Development Tools, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Data Transformation, Data Integration, Web Scraping, Data Pipelines, JSON, Object Oriented Programming (OOP), Extensible Markup Language (XML), Data Modeling, Application Programming Interface (API), Relational Databases
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Spring Framework, Spring Boot, Java, Apache Maven, Hibernate (Java), Unit Testing, Gradle, Microservices, Object-Relational Mapping, Software Testing, Testability, Restful API
Intermediate · Course · 1 - 3 Months