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.

LearnKartS
Skills you'll gain: Agentic systems, Tool Calling, Agentic Workflows, Generative AI Agents, Gemini, Google Gemini, LLM Application, AI Integrations, OpenAI, Middleware, Angular, Development Environment, Server Side, Systems Architecture, Node.JS, Frontend Integration, Debugging, Data Validation
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: MLOps (Machine Learning Operations), Model Deployment, Software Documentation, Code Reusability, Model Training, Test Script Development, Continuous Delivery, Test Automation, Model Evaluation, Continuous Integration, Technical Documentation, API Design, Application Programming Interface (API), Data Validation, Applied Machine Learning, Machine Learning Methods, Maintainability, Version Control, Package and Software Management, Code Review
Intermediate · Course · 1 - 3 Months

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

Pearson
Skills you'll gain: Amazon Web Services, Cloud Applications, Amazon S3, Cloud Development, Serverless Computing, Amazon Elastic Compute Cloud, Amazon DynamoDB, Application Development, Data Store, Application Design, Software Development Tools, Database Application, API Gateway, Cloud Deployment, Application Programming Interface (API), Cloud Services, Application Deployment, Web Services, Cloud-Based Integration, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: iOS Development, Open Web Application Security Project (OWASP), Swift Programming, Mobile Security, Mobile Development, Secure Coding, Knowledge of Apple Hardware, IT Security Architecture, Application Security, Data Validation, Application Programming Interface (API), JSON
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Maintainability, Code Review, Code Reusability, Test Driven Development (TDD), API Testing, LLM Application, API Design, Microsoft Visual Studio, Software Engineering, Engineering Software, Software Technical Review, Test Script Development, Integrated Development Environments, Unit Testing, Microservices, Peer Review, Quality Assessment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Test Automation, Test Case, Test Tools, Test Execution Engine, Application Programming Interface (API), System Monitoring, Restful API, Scenario Testing, Jenkins, CI/CD, Test Data, Azure DevOps Pipelines, Azure DevOps, Query Languages, Data Validation, Scalability, Distributed Computing
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Serverless Computing, Amazon Web Services, AWS CloudFormation, YAML, Cloud Development, Development Environment, Cloud Applications, Email Automation, Restful API, Amazon S3, Amazon DynamoDB, Node.JS, Computer Vision, Software Development Tools, Application Deployment, Integrated Development Environments, Debugging
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Threat Modeling, Data Visualization, Data Presentation, AI Security, Interactive Data Visualization, A/B Testing, Threat Management, Open Web Application Security Project (OWASP), Secure Coding, Application Security, Responsible AI, System Monitoring, MLOps (Machine Learning Operations), Analytics, Data Governance, Application Programming Interface (API), Vulnerability Assessments, Cyber Governance, Data Processing, Data Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), React.js, HTML and CSS, Front-End Web Development, Hypertext Markup Language (HTML), Web Development, Web Design, JavaScript Frameworks, Javascript, Restful API, UI Components, Event-Driven Programming
Beginner · Course · 3 - 6 Months

Skills you'll gain: Solution Architecture, Systems Design, Architectural Drawing, Artificial Intelligence and Machine Learning (AI/ML), Design Specifications, Load Balancing, Distributed Computing, Dataflow, Data Store, Functional Specification, Diagram Design, Data Pipelines
Intermediate · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: GitHub Copilot, Prompt Engineering, Prompt Patterns, Prompt Engineering Tools, Software Documentation, GitHub, Context Engineering, Generative AI Agents, LLM Application, AI Workflows, Context Management, Software Development, Agentic systems
Beginner · Course · 1 - 4 Weeks