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.

Coursera
Skills you'll gain: Ajax, JSON, Javascript, Application Programming Interface (API), Web Applications, Secure Coding, Application Security
★ 4.8 (8) · Intermediate · Course · 1 - 4 Weeks

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

Board Infinity
Skills you'll gain: Android (Operating System), Android Development, Mobile Development, Software Architecture, Live Streaming, Application Frameworks, Performance Tuning, Middleware, Image Quality, Linux
★ 3.1 (8) · Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Node.JS, Authentications, Cloud Deployment, Middleware, MongoDB, Server Side, Back-End Web Development, Role-Based Access Control (RBAC), Application Deployment, Full-Stack Web Development, API Testing, Authorization (Computing), Redis, JavaScript Frameworks, JSON, Database Management, TypeScript, Javascript, Database Design, Debugging
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Application Programming Interface (API), Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Hibernate (Java), Back-End Web Development, Eclipse (Software), Data Validation
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Full-Stack Web Development, Retrieval-Augmented Generation, Web Applications, JavaScript Frameworks, React.js, LLM Application, Web Development, Javascript, Tool Calling, Agentic Workflows, Generative AI Agents, Data Persistence
★ 4.7 (16) · Beginner · Project · Less Than 2 Hours

★ 5 (11) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Authentications, Cloud API, Google Cloud Platform, Document Management, AI Enablement, Real Time Data, Unstructured Data
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Google Cloud Platform, Virtual Machines, Cloud-Based Integration, Cloud API, Web Servers, AI Integrations, Natural Language Processing, Live Streaming
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Web Scraping, Real Time Data, OpenAI API, Data Capture, Scripting, OpenAI, Natural Language Processing, LLM Application, Python Programming, Data Processing, Application Development, Machine Learning
★ 4.5 (8) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Embeddings, AI Personalization, OpenAI API, Data Analysis, Generative AI, OpenAI, Data Manipulation, Prototyping, Data Visualization, Python Programming, Dimensionality Reduction
★ 4.8 (6) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Docker (Software), Containerization, Microservices, ASP.NET, Software Architecture, .NET Framework, Microsoft Visual Studio, Cloud-Native Computing, Restful API, C# (Programming Language), Software Development, Software Design Patterns, Scalability, Maintainability
Intermediate · Course · 1 - 3 Months