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.

Duke University
Skills you'll gain: MLOps (Machine Learning Operations), Continuous Delivery, Applied Machine Learning, Cloud Engineering, Google Cloud Platform, Model Deployment, Cloud Applications, Cloud API, Cloud Deployment, Machine Learning, Microsoft Azure, Model Training, AI Workflows, Software Engineering, Computer Vision, Application Programming Interface (API)
★ 4.5 (96) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Interface (UI) Design, Data Persistence, Data Store, Operational Databases, Object Oriented Design, Database Application, Data Access, Package and Software Management, Cloud API, Computer Programming, Code Reusability, Data Mapping, Software Installation, Data Modeling
★ 4.6 (35) · Intermediate · Specialization · 1 - 3 Months

EC-Council
Skills you'll gain: Node.JS, MongoDB, Angular, Full-Stack Web Development, JavaScript Frameworks, Restful API, Web Frameworks, Secure Coding, Server Side, Web Applications, Web Development, NoSQL, Front-End Web Development, Web Development Tools, Web Servers, Postman API Platform, Application Programming Interface (API), API Design, Javascript, Database Systems
★ 4.6 (91) · Beginner · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Microservices, Spring Boot, API Testing, Spring Framework, IntelliJ IDEA, Java Programming, Restful API, Object Oriented Programming (OOP), Java, Object Oriented Design, Application Programming Interface (API), Systems Architecture, Application Deployment, Software Architecture, API Design, Integrated Development Environments, Data Persistence, Scalability, Service Oriented Architecture, Web Applications
★ 4.3 (67) · Intermediate · Specialization · 1 - 3 Months
Skills you'll gain: Django (Web Framework), Postman API Platform, Restful API, Data Validation, Authentications, Authorization (Computing), Application Programming Interface (API), API Design, JSON, API Testing, Object-Relational Mapping, Python Programming
★ 4.6 (49) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Performance Testing, Performance Stress Testing, Test Tools, Software Testing, API Testing, Application Performance Management, Test Planning, Test Script Development, Test Data, Configuration Management
★ 4.6 (84) · Beginner · Guided Project · Less Than 2 Hours

Advancing Women in Tech
Skills you'll gain: Software Architecture, Engineering Management, Goal Setting, Systems Architecture, Systems Design, Technical Management, Software Design, Smart Goals, API Design, System Design and Implementation, Technical Product Management, Cross-Functional Collaboration, Cross-Functional Team Leadership, Management Training And Development, Recruitment, Program Management, Team Performance Management, Software Engineering, Microservices, Employee Retention
★ 4.6 (100) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: AI Security, AI Integrations, Agentic Workflows, Responsible AI, AI Orchestration, Authorization (Computing), JSON, Agentic systems, Context Management, Requirements Elicitation
★ 4.6 (60) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Transaction Processing, Hybrid Cloud Computing, COBOL (Programming Language), Mainframe Technologies, Mainframe Computing, IBM Cloud, Cloud Applications, Enterprise Application Management, Application Development, Application Programming Interface (API), Cloud API
★ 4.5 (17) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, Embeddings, Development Environment, OpenAI API, AI Integrations, Large Language Modeling, LLM Application, Generative AI, Databases, OpenAI, Artificial Intelligence, Virtual Environment, System Configuration
★ 4.7 (71) · Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Amazon Bedrock, Prompt Engineering, Responsible AI, Generative AI, Large Language Modeling, LLM Application, AI literacy, Amazon Web Services, AI Integrations, Application Programming Interface (API)
★ 4.6 (65) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MongoDB, Node.JS, Angular, Restful API, API Design, NoSQL, Bootstrap (Front-End Framework), Database Development, Scalability, JavaScript Frameworks, Authentications, Query Languages, Web Frameworks, Web Applications, JSON, Application Programming Interface (API), Database Management, Authorization (Computing), Distributed Computing, Web Development Tools
★ 4.7 (163) · Beginner · Specialization · 3 - 6 Months