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.

Duke University
Skills you'll gain: LLM Application, Large Language Modeling, Model Deployment, Embeddings, Application Programming Interface (API), Restful API, Natural Language Processing, Command-Line Interface, Open Source Technology, Machine Learning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Restful API, Application Programming Interface (API), Test Script Development, JSON, Data Validation, Test Automation, Test Case, Development Environment, Verification And Validation
Mixed · Course · 1 - 4 Weeks

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

Skills you'll gain: Extensible Markup Language (XML), Ajax, Extensible Languages and XML, Web Design, Web Design and Development, Java Platform Enterprise Edition (J2EE), HTML and CSS, jQuery, Cascading Style Sheets (CSS), Data Validation, Web Applications, Responsive Web Design, Scripting Languages, Scripting, Javascript and jQuery, Web Development, Android Development, Hypertext Markup Language (HTML), Visualization (Computer Graphics), Java
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Open Web Application Security Project (OWASP), API Design, Application Programming Interface (API), Application Security, Secure Coding, Security Controls, Vulnerability Assessments, Authorization (Computing), Hardening, Cryptographic Protocols, Cryptography, Authentications, Exploitation techniques
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Gemini, Google Gemini, Generative AI, Prompt Engineering, Multimodal Prompts, AI Integrations, LLM Application, Google Cloud Platform, Application Development, Application Programming Interface (API)
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Serverless Computing, Amazon Web Services, Amazon CloudWatch, Amazon Elastic Compute Cloud, Cloud Management, Load Balancing, Amazon S3, AWS Identity and Access Management (IAM), Cloud Computing Architecture, Cloud Applications, System Monitoring, API Gateway, Scalability, Application Deployment, Cloud Storage
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AI Orchestration, Prompt Patterns, AI Workflows, Agentic Workflows, AI Integrations, OpenAI API, Token Optimization, Test Script Development, Context Management, Code Reusability, Secure Coding, Memory Management, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Jenkins, Continuous Integration, CI/CD, Selenium (Software), Test Script Development, OAuth, Software Testing, Development Environment, Application Programming Interface (API), Test Case, Test Tools, Web Development Tools, Git (Version Control System), Restful API, Software Installation
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Collaborative Software, Application Programming Interface (API), Restful API, Software Development Tools, Software Design, Scenario Testing, Software Documentation, Mockups, Web Services, Software Versioning
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: JavaScript Frameworks, Restful API, Application Programming Interface (API), Web Development, React.js, Authentications, OAuth, Server Side, Back-End Web Development, Object-Relational Mapping, UI Components, Cloud Hosting, Image Quality, Application Deployment
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Meta Ads Manager, Facebook, Bidding, Marketing, Online Advertising, Social Media Campaigns, Advertising Campaigns, Marketing Materials, Campaign Planning, Digital Advertising, Social Media Content, Campaign Management, Social Media, Social Media Marketing, Paid media, Marketing Strategies, Advertising, Social Media Management, Target Audience, Lead Generation
Beginner · Course · 1 - 3 Months