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: PHP (Scripting Language), MySQL, WordPress, Web Applications, Application Programming Interface (API), Web Development, Content Management Systems, Restful API, DevOps, Linux, Full-Stack Web Development, Data Store, Command-Line Interface, Back-End Web Development, Server Side, Secure Coding, Scripting, Database Management, SQL, Javascript
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: React.js, Web Content Accessibility Guidelines, Game Design, Front-End Web Development, Application Programming Interface (API), User Interface (UI), Web Components, Usability, JavaScript Frameworks, Web Development Tools, Web Frameworks, Debugging, Web Development
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Databases, Web Applications, Application Frameworks
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Test Tools, System Testing, Application Programming Interface (API), User Acceptance Testing (UAT), Acceptance Testing, Testability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Networking, Role-Based Access Control (RBAC), Data Persistence, Cloud Management, Application Lifecycle Management, Proxy Servers, Capacity Management, Application Performance Management, CI/CD, Key Management, YAML, Network Security, API Gateway, Network Routing, Application Deployment, Disaster Recovery, Scalability, Large Language Modeling
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Artificial Intelligence, Large Language Modeling, Embeddings, Text Mining, Generative AI, Natural Language Processing, Python Programming, Application Programming Interface (API), Scripting
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Java Programming, Functional Design, Performance Tuning, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Ansible, Software-Defined Networking, JSON, Automation, Infrastructure as Code (IaC), Network Architecture, Application Programming Interface (API), Network Infrastructure, Network Monitoring, Restful API, Network Performance Management, Network Planning And Design, Extensible Markup Language (XML)
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Object-Relational Mapping, Database Design
Intermediate · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Generative AI Agents, Email Automation, Vibe coding, Agentic Workflows, Agentic systems, AI Workflows, AI Orchestration, Sales Process, Marketing Automation, HubSpot CRM, Sales Enablement, Sales Pipelines, Software As A Service, Sales Development, Lead Generation, Business Development, Prompt Engineering, New Business Development, Application Deployment, Campaign Management
Mixed · Course · 1 - 3 Months
Skills you'll gain: Microsoft Power Automate/Flow, Microsoft Power Platform, Microsoft 365, Data Integration, Digital Transformation, React.js, Frontend Performance, Business Process Automation, Web Development Tools, Automation, Process Optimization, Application Programming Interface (API), Data Transformation, Integration Testing, UI Components, Development Testing, Authentications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: OAuth, JSON, Data Wrangling, Application Programming Interface (API), API Design, Application Security
Intermediate · Course · 1 - 4 Weeks