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.

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), Software Design Patterns, Unified Modeling Language, Software Design, Java, Java Programming, Software Architecture, User Interface and User Experience (UI/UX) Design, API Design, Software Development, AI Integrations
Build toward a degree
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Serverless Computing, Containerization, Amazon Web Services, Data Migration, Amazon DynamoDB, Docker (Software), Data Import/Export, Databases, Kubernetes, AWS Identity and Access Management (IAM), Amazon Elastic Compute Cloud, Database Management, Performance Tuning, Security Controls, Cloud Security, Application Programming Interface (API), Data Security, Scalability
Intermediate · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Web Components, Application Frameworks, Code Reusability, Web Development, Full-Stack Web Development, Event-Driven Programming, Computer Programming, Semantic Web, Web Content Accessibility Guidelines, Object Oriented Programming (OOP), Design Elements And Principles, Application Deployment, Scalability
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: OpenAI, OpenAI API, Development Environment, DeepSeek API, Agentic Workflows, AI literacy, Application Development, Game Design, Agentic systems, Email Automation, Web Scraping
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google App Engine, Cloud Applications, Google Cloud Platform, Cloud Deployment, Application Deployment, Scalability, Cloud Hosting, Public Cloud, Platform As A Service (PaaS), Cloud API, Application Development, PHP (Scripting Language), Program Development
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Database Management Systems, Memory Management, Analysis
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Web Applications, Python Programming, Web Servers, API Gateway
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Model Deployment, AWS SageMaker, MLOps (Machine Learning Operations), Serverless Computing, Google Cloud Platform, Cloud Deployment, AI Integrations, Docker (Software), Cloud Platforms, Cloud Computing, Containerization, Application Deployment, Amazon Web Services, Restful API, DevOps, CI/CD, Microsoft Azure, Public Cloud, Microservices, Devops Tools
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: PySpark, Apache Spark, Data Pipelines, Data Processing, AI Personalization, Dimensionality Reduction, OpenAI API, Data Manipulation, Pandas (Python Package), Data Transformation, Unsupervised Learning, Applied Machine Learning, Embeddings, Machine Learning
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Data Lakes, Google Cloud Platform, Data Management, Cloud Management, Cloud API, Data Analysis
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Node.JS, Back-End Web Development, Full-Stack Web Development, API Testing, MongoDB, Payment Processing, Order Management, Application Programming Interface (API), Restful API, Payment Systems, Scheduling, Order Processing, Data Processing, Inventory Management System, Data Validation, Software Development, Database Design, Authorization (Computing), Automation
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Feature Engineering, Model Deployment, Data Preprocessing, Machine Learning Methods, Scikit Learn (Machine Learning Library), Supervised Learning, Machine Learning Algorithms, Applied Machine Learning, Machine Learning, Test Script Development, Model Evaluation, Unsupervised Learning, Containerization, Data Processing, Data Wrangling, Unit Testing, Development Testing, Software Development, Python Programming, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks