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.

Board Infinity
Skills you'll gain: Node.JS, Full-Stack Web Development, User Interface (UI), Application Deployment, MongoDB, Angular, Back-End Web Development, Front-End Web Development, User Interface (UI) Design, Web Applications, JavaScript Frameworks, Restful API, Web Development, Secure Coding, Authentications, Authorization (Computing), Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Salesforce Object Query Language (SOQL), Salesforce Development, Simple Object Access Protocol (SOAP), Systems Integration, Salesforce, Restful API, Web Services, Data Integration, Software Development Tools, Application Programming Interface (API), Real Time Data, Test Tools, Development Environment, Postman API Platform, Data Import/Export, JSON, Authentications, UI Components
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Ajax, JSON, JavaScript Frameworks, Javascript, Application Programming Interface (API), Restful API, Web Applications, Real Time Data, Application Security
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Deepseek, Large Language Modeling, LLM Application, AI Personalization, ChatGPT, Deep Learning, Open Source Technology, Case Studies, Company, Product, and Service Knowledge, Applied Machine Learning, Application Programming Interface (API), Cost Benefit Analysis, Business Process Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ajax, JSON, Application Programming Interface (API), Javascript, Event-Driven Programming, Data Validation, Web Development, Object Oriented Programming (OOP), Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, Test Data, Test Case, JSON, System Testing, Scenario Testing, Application Programming Interface (API), Mockups
Intermediate · Guided Project · Less Than 2 Hours

LearnKartS
Skills you'll gain: Prometheus (Software), Data Processing, Application Performance Management
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Digital Transformation, Google Cloud Platform, Business Transformation, Cloud Management, Application Development, Collaborative Software, Productivity Software, Data Storage Technologies, Cloud Storage, Artificial Intelligence and Machine Learning (AI/ML), Cloud Computing, Cloud Infrastructure
Beginner · Course · 1 - 3 Months

Skills you'll gain: Flutter (Software), JSON, User Interface (UI), User Interface and User Experience (UI/UX) Design, Database Development, Databases, Interactive Data Visualization, Debugging, Application Development, Mobile Development, Data Storage Technologies, Application Programming Interface (API), Data Management
Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Multimodal Prompts, Prompt Engineering, Google Gemini, LLM Application, Tool Calling, Generative AI, Application Programming Interface (API), Image Analysis, Text Mining, Real Time Data
Beginner · Project · Less Than 2 Hours

Scrimba
Skills you'll gain: React.js, Performance Tuning, Web Development Tools, Front-End Web Development, TypeScript, Ajax, JavaScript Frameworks, Application Performance Management, UI Components, User Interface (UI)
Advanced · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Full-Stack Web Development, Web Applications, JavaScript Frameworks, React.js, LLM Application, Web Development, Javascript, Tool Calling, Generative AI Agents, Real Time Data
Beginner · Project · Less Than 2 Hours