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.

Packt
Skills you'll gain: Prompt Engineering, OpenAI API, Token Optimization, LangChain, ChatGPT, Multimodal Prompts, Prompt Patterns, OpenAI, Generative AI, No-Code Development, LLM Application, AI powered creativity, Generative Model Architectures, Microsoft Power Platform, Application Programming Interface (API), Large Language Modeling, AI Workflows, Email Automation, Application Development, JSON
★ 3.6 (7) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: API Testing, Cucumber (Software), Behavior-Driven Development, JSON, Gherkin (Scripting Language), Restful API, Application Programming Interface (API), Test Tools, Test Case, Test Planning, Software Testing, Test Engineering, Security Testing, Test Script Development, Code Coverage, Test Data, Test Automation, Apache Maven, Authentications, Development Environment
★ 4.8 (15) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Behavior-Driven Development, Apache Maven, API Testing, Test Script Development, Restful API, Test Automation, JSON, Scalability, Application Programming Interface (API), Test Case, Java Programming, Test Data, Authentications, Java
★ 5 (16) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: OpenAI API, ChatGPT, Prompt Engineering, OpenAI, AI Integrations, LLM Application, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Anthropic Claude, Application Programming Interface (API), LLM Application, JSON, AI Integrations, Generative AI Agents, Agentic systems, Scripting, Token Optimization, Artificial Intelligence, Automation, Development Environment
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Data Import/Export, Data Store, Cloud API, Health Informatics, Health Information Management, Health Technology, Application Programming Interface (API), Google Cloud Platform, Cloud-Based Integration, Health Care, Data Integration, Data Modeling, Cloud Storage
Beginner · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Microsoft SQL Servers, C# (Programming Language), Web Services, Database Management, Database Development, JSON, Back-End Web Development, SQL, Database Design, Server Side, .NET Framework, Object Oriented Programming (OOP), Application Programming Interface (API), API Design, Database Architecture and Administration, Programming Principles
★ 4.1 (14) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Google Cloud Platform, Unstructured Data, Cloud API, Jupyter, AI Integrations, Document Management, Real Time Data, Python Programming
★ 4.8 (6) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: API Gateway, Application Programming Interface (API), Kubernetes, Cloud API, Google Cloud Platform, Hybrid Cloud Computing, Application Performance Management, Capacity Management, Istio, Scalability, API Testing, Security Controls, System Monitoring, Apache Cassandra, Application Deployment, Patch Management, Proxy Servers, Data Security, Cloud Deployment, Package and Software Management
★ 4.6 (58) · Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: API Gateway, Cloud API, Application Programming Interface (API), Restful API, Google Cloud Platform, API Design, Cloud Deployment, Web Services, Scalability, Back-End Web Development, Server Side, Interoperability, Data Management, Network Analysis
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Cloud API, Application Programming Interface (API), API Design, Cloud Services, C# (Programming Language), Server Side, Application Development, Development Environment
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: API Testing, Test Automation, Test Script Development, Test Tools, Application Programming Interface (API), Restful API, Software Testing, Code Reusability, Configuration Management, Java Programming, Maintainability
★ 4.3 (31) · Intermediate · Guided Project · Less Than 2 Hours