API testing courses can help you learn how to validate API functionality, performance, security, and reliability. You can build skills in writing test cases, automating tests, and analyzing API responses to ensure they meet specifications. Many courses introduce tools like Postman, SoapUI, and JMeter, that support executing tests and monitoring API behavior. You'll also explore methods for integrating testing into the development process, enhancing collaboration between teams, and ensuring seamless application performance.

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

Board Infinity
Skills you'll gain: Application Lifecycle Management, Microsoft Power Platform, Integration Testing, Application Development, Power Apps Component Framework, DevOps, Application Deployment, Database Design, Usability Testing, Development Testing, Scenario Testing, Solution Architecture, Simulations, User Interface (UI) Design
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Single Sign-On (SSO), Email Security, Google Workspace, Cloud Security, Security Management, Data Security, Security Controls, Application Security, Mobile Security, Cloud API, API Gateway, Authentications, Multi-Factor Authentication, Identity and Access Management, Enterprise Application Management, Threat Detection
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Software Design Patterns, Functional Design, Programming Principles
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Jira (Software), Issue Tracking, User Story, Dashboard, Workflow Management, Scrum (Software Development), Work Breakdown Structure, Kanban Principles, Sprint Planning, Technical Documentation, Prioritization, Query Languages, Process Management, Collaborative Software, Technical Communication, Stakeholder Communications, Team Oriented
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Debugging, jQuery, Hypertext Markup Language (HTML), Javascript, Development Environment, UI Components, User Interface (UI), Animations
Beginner · Course · 1 - 3 Months

Skills you'll gain: Case Studies, User Experience Design, Business Analysis, Natural Language Processing, Application Programming Interface (API), Application Deployment, Application Development, Artificial Intelligence, Systems Integration, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Google Cloud Platform, Responsible AI, Data Quality, Cloud API, Big Data, Applied Machine Learning, Business Intelligence, Model Deployment, Natural Language Processing, Predictive Analytics
Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Detail Oriented, Follow Through, Analytical Testing
Beginner · 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

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

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