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: API Testing, JSON, Test Automation, Test Script Development, Application Programming Interface (API), Restful API, Software Testing, Test Tools, Integration Testing, Functional Testing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Back-End Web Development, Server Side, Full-Stack Web Development, Middleware, Authentications, API Design, Application Programming Interface (API), User Accounts, Databases, JavaScript Frameworks, GitHub, Development Environment, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Postman API Platform, API Design, Application Programming Interface (API), .NET Framework, API Testing, Authentications, Object-Relational Mapping, Development Environment, Microsoft Development Tools, Microsoft Visual Studio, Web Development Tools, Application Frameworks, Authorization (Computing), Endpoint Security, Software Design Patterns, Data Mapping, Identity and Access Management, Data Validation
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: OpenAI API, OpenAI, AI Workflows, LLM Application, AI Integrations, Generative AI Agents, AI Personalization, Agentic Workflows, Application Programming Interface (API), Performance Testing, Artificial Intelligence, Context Management, Application Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Cloud API, Application Programming Interface (API), Postman API Platform, API Design, API Testing, Java Programming, Java, Mobile Development, Apache Maven, Application Development, Data Access, Web Development, Eclipse (Software), Software Design
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Cryptography, Data Encryption Standard, Encryption, Advanced Encryption Standard (AES), Cryptographic Protocols, Application Security, Key Management, Secure Coding, Data Security, Web Development, Email Security, PHP (Scripting Language), Intrusion Detection and Prevention, Data Integrity, Algorithms, User Provisioning, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: API Gateway, Cloud Deployment, Cloud Development, Restful API, Application Programming Interface (API), Cloud Applications, Application Deployment, API Design, Go (Programming Language), Software Development, Google Cloud Platform, Personally Identifiable Information, Data Access, DevOps, Database Application, Data Management
Intermediate · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Google Cloud Platform, Cloud API, Health Informatics, Data Import/Export, Data Mapping, Clinical Data Management, Health Care, Health Information Management, Data Store, Web Development
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Node.JS, Secure Coding, Application Programming Interface (API), API Design, Authentications, Server Side, MongoDB, Restful API, Full-Stack Web Development, Development Environment, Back-End Web Development, Package and Software Management, Object-Relational Mapping, Database Development, Middleware, JSON, User Accounts, Data Modeling
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: API Testing, Application Programming Interface (API), Test Tools, Behavior-Driven Development, Test Automation
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Query Languages, Business Logic, Model View Controller, Software Architecture
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Gateway, Kubernetes, Cloud API, Google Cloud Platform, Hybrid Cloud Computing, Application Programming Interface (API), API Testing, Application Deployment, Software Installation, Proxy Servers, Verification And Validation, Configuration Management, YAML
Beginner · Course · 1 - 4 Weeks