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: LLM Application, Tool Calling, Large Language Modeling, Retrieval-Augmented Generation, Command-Line Interface, Embeddings, Python Programming, Application Development, Vector Databases, User Interface (UI), Software Installation, Restful API, Development Environment
★ 4 (7) · Intermediate · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Tool Calling, LLM Application, Multimodal Prompts, Prompt Patterns, Prompt Engineering, Token Optimization, Large Language Modeling
★ 4.5 (13) · Beginner · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: PHP (Scripting Language), Model View Controller, Restful API, Secure Coding, Web Development, Object-Relational Mapping, Web Applications, Full-Stack Web Development, Development Environment, Software Testing, Development Testing, Back-End Web Development, Security Controls, API Design, Application Frameworks, Database Management, Web Frameworks, Application Programming Interface (API), Application Security, Database Development
★ 4.2 (10) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Deepseek, DeepSeek API, LangChain, LLM Application, Generative AI Agents, Prompt Engineering Tools, Model Evaluation, Fine-tuning, Agentic systems, Model Optimization
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Node.JS, Server Side, Web Servers, Back-End Web Development, Package and Software Management, Web Applications, Code Reusability, Javascript, JSON, Web Development, Event-Driven Programming, Development Environment, Application Programming Interface (API), File Systems, Maintainability, Operating Systems, API Testing, Network Routing, File I/O, Object Oriented Design
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Prompt Patterns, Tool Calling, LLM Application, JSON, Large Language Modeling, Artificial Intelligence
★ 4.6 (18) · Beginner · Project · Less Than 2 Hours
Skills you'll gain: LLM Application, Prompt Patterns, Token Optimization, Middleware, OpenAI API, Prompt Engineering Tools, User Interface (UI), Interaction Design, Model Optimization, User Interface and User Experience (UI/UX) Design, UI/UX Research, Back-End Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Network Troubleshooting, Authentications, Debugging, Event Monitoring, System Monitoring, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Restful API, Spring Framework, Spring Boot, Hibernate (Java), API Design, Development Testing, Verification And Validation, Authentications, Object-Relational Mapping, Maintainability, Data Persistence, Authorization (Computing), Application Design, YAML, Role-Based Access Control (RBAC), Endpoint Security, Business Logic, Configuration Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Case, Test Automation, Test Tools, Continuous Integration, Test Data, Functional Testing, Test Execution Engine, CI/CD, Software Testing, Code Reusability, Maintainability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Code Review, Web Presence, Software Documentation
★ 4.7 (13) · Advanced · Course · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, LangChain, LLM Application, Embeddings, Application Frameworks, Vision Transformer (ViT), Data Quality
Intermediate · Course · 1 - 3 Months