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: Hugging Face, Prompt Engineering, Retrieval-Augmented Generation, Responsible AI, Model Evaluation, Fine-tuning, Model Deployment, Feature Engineering, LangChain, Model Optimization, Large Language Modeling, Generative Model Architectures, Generative AI, LLM Application, MLOps (Machine Learning Operations), Model Training, OpenAI API, Generative Adversarial Networks (GANs), Business Strategy, Python Programming
★ 4.1 (96) · Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Internet Of Things, API Design, Amazon Web Services, Embedded Software, Cloud Computing Architecture, Application Programming Interface (API), Network Protocols, Microservices, Cloud Applications, Cloud Services, Communication Systems, Middleware, Cloud Platforms, Embedded Systems, Information Systems Security, Telecommunications, Cloud Technologies, Interoperability, Cybersecurity, Cloud-Based Integration
★ 4.5 (127) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Make.com, Email Automation, DeepSeek API, Deepseek, Workflow Management, Agentic Workflows, AI Workflows, No-Code Development, User Interface (UI), LLM Application, AI Orchestration, AI Integrations, Human Computer Interaction, Generative AI Agents, Large Language Modeling, Automation, Application Programming Interface (API), Natural Language Processing, Prompt Engineering, Debugging
★ 4.1 (64) · 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

Duke University
Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, Embeddings, OpenAI API, Data Import/Export, Pandas (Python Package), Generative AI, Application Programming Interface (API), Large Language Modeling, Data Processing, Data Management, Python Programming, Machine Learning
★ 4.4 (51) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Penetration Testing, Security Testing, Hardening, Brute-force attacks, Test Automation, Business Logic, Cloud Security, Network Analysis, Programming Principles, API Testing, General Data Protection Regulation (GDPR), Cloud Computing, Vulnerability Management, Wireless Networks, Data Persistence, Application Programming Interface (API), Data Security
★ 4.7 (22) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Frontend Integration, Web Applications, API Design, User Interface (UI), Databases, GitHub, Dashboard Creation, Data Validation
★ 4.6 (54) · Beginner · Specialization · 3 - 6 Months

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

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

University of Colorado System
Skills you'll gain: Prompt Engineering, Vibe coding, Debugging, Large Language Modeling, LLM Application, AI Security, Application Programming Interface (API), Responsible AI, Development Environment, AI Integrations, Computer Programming Tools, No-Code Development, Program Development, Integrated Development Environments, Programming Principles
★ 4.4 (29) · Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Prompt Patterns, Generative AI Agents, AI Orchestration, AI Workflows, Business Process Automation, Make.com, Large Language Modeling, Automation, ChatGPT, Agentic systems, Generative Model Architectures, Agentic Workflows, LangChain, Responsible AI, AI Security, Workflow Management, OpenAI, Process Optimization, Application Programming Interface (API), Decision Support Systems
★ 4.3 (26) · Beginner · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: React.js, UI Components, Front-End Web Development, Web Content Accessibility Guidelines, User Interface (UI), Code Reusability, JavaScript Frameworks, Web Development Tools, Web Frameworks, Cascading Style Sheets (CSS), Application Programming Interface (API), Data Mapping
★ 4.7 (230) · Intermediate · Course · 3 - 6 Months