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: AWS Identity and Access Management (IAM), Infrastructure as Code (IaC), Amazon Web Services, Amazon DynamoDB, Containerization, Amazon Elastic Compute Cloud, Cloud-Native Computing, Cloud Security, AWS CloudFormation, Event-Driven Programming, Kubernetes, API Gateway, Operational Databases, Cloud Development, Continuous Integration, Amazon S3, Amazon CloudWatch, AWS Kinesis, Virtual Machines, Virtualization and Virtual Machines
★ 4.7 (10) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Keras (Neural Network Library), Model Optimization, Tensorflow, Deep Learning, Performance Tuning, Model Deployment, Python Programming
★ 4.5 (77) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: GitHub Copilot
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Google Cloud Platform, Cloud Deployment, YAML, Restful API, Software Configuration Management, Load Balancing, Configuration Management
★ 4.9 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Access, Object Oriented Design, Relational Databases, Object Oriented Programming (OOP), Database Software, JUnit, Data Integrity, SQL, Database Development, Java, Java Programming, Database Management, Databases
★ 4.6 (39) · Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Application Programming Interface (API), Javascript, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Continuous Deployment, Application Deployment, Cloud Deployment, Web Applications, UI Components, Javascript, Bootstrap (Front-End Framework), JavaScript Frameworks, Development Environment, User Interface (UI), Cascading Style Sheets (CSS), Application Programming Interface (API)
★ 5 (10) · Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Javascript, Application Programming Interface (API)
★ 4.9 (11) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Frontend Integration, Application Programming Interface (API), API Gateway, Secure Coding, Cloud Development, Cloud Deployment, Database Development, Maintainability, Dataflow, Application Deployment, Server Side, Web Applications, Authentications, Authorization (Computing), Data Access
★ 3.8 (6) · Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Test Automation, Performance Testing, Software Testing, API Testing, Test Script Development, Security Testing, Continuous Integration, Test Tools, AI Security, CI/CD, Performance Stress Testing, Regression Testing, AI Integrations, Scalability, Automation, Test Case, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Context Engineering, Agentic Workflows, AI Orchestration, Tool Calling, Generative AI, Gemini, Artificial Intelligence, Google Gemini, Retrieval-Augmented Generation, Model Optimization, Embeddings, Workflow Management, Python Programming, Data Validation
Beginner · Course · 1 - 4 Weeks