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.

Simplilearn
Skills you'll gain: API Testing, Performance Testing, Test Script Development, Application Programming Interface (API), Test Tools, Software Testing, Test Planning, Simulations, Scalability
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Retrieval-Augmented Generation, LangChain, LLM Application, AI Workflows, Performance Tuning, Model Deployment, Prompt Engineering, Enterprise Application Management, Maintainability, System Monitoring, Scalability, Application Performance Management, Cost Reduction, Vector Databases
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, Test Script Development, Test Data, Test Case, JSON, API Testing, Scenario Testing, Mockups
Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: White-Box Testing, Software Testing, Risk Analysis, Code Coverage, Test Case, Unit Testing, Test Engineering, Test Planning, Integration Testing
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: OpenAI API, OpenAI, Image Analysis, Generative AI, ChatGPT, LLM Application, Multimodal Prompts, Application Programming Interface (API), Large Language Modeling, Artificial Intelligence, Natural Language Processing, Computer Vision
Beginner · 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, Data Integration, Software Development Tools, Application Programming Interface (API), Real Time Data, Test Tools, Development Environment, Postman API Platform, JSON, Authentications, Web Components
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Deployment, Object-Relational Mapping, Application Frameworks, Full-Stack Web Development, Software Configuration Management, Application Design, Development Environment, Microsoft Visual Studio, User Interface (UI), Microsoft Development Tools, Application Development, Authorization (Computing), HTML and CSS, Maintainability, Data Modeling, Data Migration, Data Mapping, Business Logic, Web Servers, Debugging
Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Frontend Integration, JavaScript Frameworks
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Tool Calling, LLM Application, Multimodal Prompts, Prompt Patterns, Prompt Engineering, Large Language Modeling
Beginner · Project · Less Than 2 Hours

Skills you'll gain: AI Orchestration, AI Workflows, OpenAI API, ChatGPT, Test Script Development, Agentic systems, Context Management, Secure Coding, Debugging
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Cloud Applications, Cloud API, Google Cloud Platform, Cloud Deployment, Application Deployment, Application Programming Interface (API), Cloud Management, Data Management
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Google Cloud Platform, Cloud API, Natural Language Processing, Configuration Management
Beginner · Project · Less Than 2 Hours