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: Apache Hadoop, Apache Hive, Extract, Transform, Load, Data Import/Export, Data Pipelines, Big Data, Data Migration, Data Integration, MySQL, Data Processing, SQL, Analytics, Data Manipulation, Database Management, Relational Databases, Data Architecture, Data Quality, Software Installation, Scalability, Performance Tuning
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Predictive Modeling, Model Evaluation, Predictive Analytics, Statistical Modeling, Risk Modeling, Decision Tree Learning, Data Analysis, R Programming, Logistic Regression, Feature Engineering, Model Deployment, Data Import/Export, Exploratory Data Analysis, Data Preprocessing
Beginner · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Debugging, Vibe coding, Prototyping, Mobile Development, Application Development, Integrated Development Environments, Application Design, AI Enablement, Application Deployment, Generative AI, User Interface (UI) Design
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, Responsible AI, Authorization (Computing), JSON, VPN Clients
Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: New Product Development, Product Management, Product Development, Innovation, Product Lifecycle Management, Product Roadmaps, Usability Testing, Product Planning, Product Strategy, Project Management Life Cycle, Stakeholder Engagement, Stakeholder Management, Competitive Analysis, Product Testing, Project Planning, Business Development, Agile Product Development, Test Planning, Registration, Leadership
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Apple iOS, Open Web Application Security Project (OWASP), Swift Programming, Mobile Security, Mobile Development, Secure Coding, IT Security Architecture, Application Security, Data Validation, Vulnerability Assessments, Cryptography, Application Programming Interface (API), JSON
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: HVAC, Building Services Engineering, Architectural Engineering, Building Design, Energy and Utilities, Climate Change Mitigation, Mechanical Engineering, Civil and Architectural Engineering, Construction, Architecture and Construction, Architectural Design, Design Strategies
Advanced · Specialization · 3 - 6 Months

Logical Operations
Skills you'll gain: Responsive Web Design, Usability, HTML and CSS, Web Design, Multimedia, Web Design and Development, Cascading Style Sheets (CSS), Bootstrap (Front-End Framework), Web Content Accessibility Guidelines, User Interface (UI), Email Marketing, Front-End Web Development, Adobe Creative Cloud, Web Development, Web Content, Web Development Tools, Hypertext Markup Language (HTML), Marketing, Content Management, File Management
Mixed · Course · 1 - 3 Months

Skills you'll gain: Threat Modeling, Feature Engineering, Anomaly Detection, Data Visualization, MLOps (Machine Learning Operations), Agentic Workflows, AI Security, A/B Testing, Open Web Application Security Project (OWASP), Software Engineering, Data Ethics, Responsible AI, Technical Communication, Secure Coding, Agentic systems, AI Orchestration, DevSecOps, Continuous Monitoring, CI/CD, Reinforcement Learning
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: A/B Testing, Statistical Hypothesis Testing, Test Planning, Statistical Analysis, Financial Analysis, Financial Data, Statistical Inference, Risk Analysis, Performance Metric, Spreadsheet Software, Decision Making, Project Documentation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Data Visualization, Statistical Hypothesis Testing, Data Visualization Software, Interactive Data Visualization, Data Presentation, Health Informatics, Data Analysis, Healthcare Ethics, Technical Communication, Supervised Learning, Looker (Software), Statistical Analysis, Statistics, Predictive Analytics, Health Care, Healthcare Industry Knowledge, Data Literacy, Health Technology, Regression Analysis
Intermediate · Specialization · 1 - 3 Months

Beginner · Course · 1 - 4 Weeks