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.

Skills you'll gain: OpenAI API, OpenAI, Image Analysis, Generative AI, ChatGPT, LLM Application, Multimodal Prompts, Tool Calling, Application Programming Interface (API), Large Language Modeling, Artificial Intelligence, AI Integrations, Natural Language Processing, Computer Vision, File Management
★ 3.9 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Software Documentation, Generative AI, Test Automation, Design Software, Mockups, User Interface (UI), Software Development Tools, User Interface and User Experience (UI/UX) Design, Software Testing, AI Security, AI Workflows, Application Security, Maintainability, Prompt Engineering, Test Case, Software Architecture, Code Review, Secure Coding, Artificial Intelligence, Debugging
★ 4 (22) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Penetration Testing, Cyber Security Assessment, Security Testing, Exploitation techniques, Hardening, Vulnerability Assessments, Intrusion Detection and Prevention, Brute-force attacks, Application Security, Network Security, Virtual Local Area Network (VLAN), Business Logic, Cloud Security, API Testing, Wireless Networks, Data Persistence, Application Programming Interface (API)
Advanced · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Amazon Bedrock, Generative AI Agents, Retrieval-Augmented Generation, Prompt Engineering, Generative AI, AI Workflows, Agentic Workflows, LLM Application, Amazon Web Services, Context Management, Agentic systems
★ 4.6 (23) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Node.JS, Server Side, MongoDB, Back-End Web Development, Restful API, Full-Stack Web Development, Web Applications, Database Development, Frontend Integration, Web Development, JavaScript Frameworks, Database Management, Secure Coding, Application Programming Interface (API), Software Architecture, NoSQL, API Design, Authentications, Performance Tuning, Authorization (Computing)
★ 4.3 (7) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Salesforce Object Query Language (SOQL), Salesforce Development, Simple Object Access Protocol (SOAP), Systems Integration, Salesforce, Restful API, Web Services, Integration Testing, Data Integration, Software Development Tools, Application Programming Interface (API), Real Time Data, Development Environment, Postman API Platform, Data Import/Export, Event-Driven Programming, Authentications, Web Components
Beginner · Course · 1 - 3 Months

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
★ 4 (7) · Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Model Deployment, Tensorflow, Keras (Neural Network Library), Google Cloud Platform, Model Optimization, Model Training, Data Pipelines, Cloud Deployment, Deep Learning, Data Preprocessing, Feature Engineering, Predictive Modeling, Model Evaluation, Data Import/Export, Artificial Neural Networks, Data Manipulation
★ 4.5 (137) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: JUnit, Apache Maven, Unit Testing, Spring Framework, Spring Boot, Restful API, API Testing, Software Testing, Test Case, Application Programming Interface (API), Gradle, Build Tools, Software Development Tools, Integration Testing, Application Frameworks, Authentications
Intermediate · Course · 1 - 3 Months

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

Skills you'll gain: Retrieval-Augmented Generation, OpenAI API, OpenAI, LLM Application, Dashboard Creation, Large Language Modeling, AI Integrations, Model Deployment, Back-End Web Development, Restful API, Web Development, Interactive Data Visualization
★ 4.3 (14) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Prompt Engineering, Prompt Engineering Tools, LLM Application, OpenAI API, Token Optimization, OpenAI, Anthropic Claude, Authentications, Large Language Modeling, Command-Line Interface, Key Management, Development Environment, Application Programming Interface (API), Python Programming, Virtual Environment
Intermediate · Course · 1 - 4 Weeks