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.

Edureka
Skills you'll gain: AI Security, Responsible AI, Data Ethics, LLM Application, Generative AI, Google Gemini, Artificial Intelligence, Cloud Security, Governance Risk Management and Compliance, Cyber Security Strategy, Security Strategy, Artificial Intelligence and Machine Learning (AI/ML), Computer Security Awareness Training, Network Security, Security Management, Cyber Attacks, Cyber Security Policies, Natural Language Processing, Risk Management, Supply Chain
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cloud Infrastructure, Terraform, Kubernetes, Google Cloud Platform, Infrastructure as Code (IaC), Nginx, Load Balancing, Containerization
Intermediate · Project · Less Than 2 Hours

Coursera
Skills you'll gain: Distributed Computing, Scalability, Performance Tuning, C++ (Programming Language), System Programming, Computer Architecture, Cross Platform Development, Hardware Architecture, Application Development, Algorithms, C (Programming Language), Development Environment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: TCP/IP, Network Protocols, Application Programming Interface (API), Ajax, Web Development, General Networking, Web Applications, Javascript, Scalability, Event-Driven Programming, Server Side, Real Time Data, Network Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Access, Build Tools, Change Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Design, Restful API, Application Programming Interface (API), Test Automation, Data Mapping, Application Deployment, Cloud Deployment, Salesforce, Robotic Process Automation, Business Process Automation, Software Testing, Data Integration, API Testing, Architectural Design, Software Development Tools, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Deepseek, Hugging Face, Large Language Modeling, LLM Application, AI Personalization, ChatGPT, Deep Learning, Open Source Technology, AI Enablement, Model Deployment, Business Modeling, Applied Machine Learning, Analytical Skills, Application Programming Interface (API), Business Process Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI Agents, OpenAI API, Command-Line Interface, AI Enablement, Agentic systems, API Testing, Rust (Programming Language), Key Management, Software Technical Review, Verification And Validation, Unit Testing, Solution Architecture, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Server Side, Restful API, Ajax, Full-Stack Web Development, API Design, Node.JS, Postman API Platform, Web Applications, Application Programming Interface (API), Back-End Web Development, Web Servers, Web Development Tools, API Testing, Web Development, Javascript, Front-End Web Development, JSON, Middleware
Advanced · Course · 1 - 3 Months

Skills you'll gain: Frontend Integration, Javascript and jQuery, Front-End Web Development, Application Programming Interface (API), Event-Driven Programming, Development Environment
Beginner · Course · 1 - 3 Months
Coursera
Skills you'll gain: API Testing, Test Script Development, Scenario Testing, Software Testing, Integration Testing, Test Case, Test Automation, Acceptance Testing, Test Tools, Regression Testing, Test Execution Engine, Maintainability, User Interface (UI), Security Testing, Test Data, Scalability, Debugging, Authentications, Compliance Reporting, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Back-End Web Development, Full-Stack Web Development, Node.JS, Server Side, Restful API, JavaScript Frameworks, Web Development, Web Applications, Web Servers, Javascript
Intermediate · Guided Project · Less Than 2 Hours