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.

Codio
Skills you'll gain: Matplotlib, Statistical Hypothesis Testing, Data Analysis, Statistical Analysis, Data Import/Export, Data Cleansing, Probability & Statistics, Data Manipulation, Descriptive Statistics, Pandas (Python Package), Exploratory Data Analysis, Correlation Analysis, Python Programming, Programming Principles, Computer Programming, Computational Logic
Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Apple iOS, Apple Xcode, iOS Development, Core Data (Software), Secure Coding, Application Deployment, Scalability, Swift Programming, Apple software proficiency, Back-End Web Development, Performance Tuning, Application Security, Debugging, Security Controls, Knowledge of Apple Software, Build Tools, Application Performance Management, Application Programming Interface (API), Performance Testing, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Maintenance, Linux Administration, Operating System Administration, Database Software, Event Monitoring, Database Management Systems, Linux Commands, File I/O, Data Migration, Performance Testing, Data Storage Technologies, Scenario Testing, Memory Management, Data Storage, Software Installation
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Serverless Computing, API Gateway, Image Analysis, Cloud-Based Integration, Amazon CloudWatch, Extensible Markup Language (XML), JSON, Computer Vision, Cloud Deployment, Restful API, API Design, Amazon Web Services, Event-Driven Programming, Amazon S3, Microservices, Cloud Development, AWS CloudFormation, Extensible Languages and XML, Cloud-Native Computing, Artificial Intelligence and Machine Learning (AI/ML)
Beginner · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Penetration Testing, Cyber Security Assessment, Vulnerability Assessments, Data Security, Cybersecurity, Exploitation techniques, Test Tools, User Requirements Documents, Authorization (Computing), Technical Documentation, Computing Platforms, Requirements Analysis, Technical Communication
Intermediate · Course · 1 - 3 Months

Skills you'll gain: UI/UX Strategy, User Experience, User Flows, User Experience Design, Data Storytelling, Journey Mapping, Persona (User Experience), Experience Design, Usability, Design Strategies, User Centered Design, Usability Testing, UI/UX Research, Product Improvement, User Research, Human Centered Design, Design Research, Figma (Design Software), Storytelling, Prioritization
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), ChatGPT, Authentications, Generative AI Agents, Back-End Web Development, Web Servers, OpenAI API, AI Orchestration, Web Frameworks, Databases, Code Review, Server Side, Web Applications, Agentic Workflows, AI Integrations, Command-Line Interface, AI Workflows, Package and Software Management, Memory Management, Development Environment
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Google Analytics, Conversion Funnel Analysis, Marketing Analytics, Web Analytics, Data-Driven Marketing, Digital Analysis, Content Performance Analysis, Customer Analysis, Content Optimization, Campaign Management, Target Audience, Customer Insights, A/B Testing, Dashboard Creation, Performance Metric, Content Strategy
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Retrieval-Augmented Generation, LangChain, Prompt Patterns, LLM Application, AI Workflows, Performance Tuning, Large Language Modeling, Prompt Engineering, AI Orchestration, Maintainability, System Monitoring, Scalability, Code Reusability, Embeddings, Vector Databases
Intermediate · Course · 1 - 4 Weeks

Universitat de Barcelona
Skills you'll gain: Precision Medicine, Diagnostic Tests, Pathology, Oncology, Molecular Biology, Patient Evaluation, Molecular, Cellular, and Microbiology, Laboratory Testing, Pulmonology, Pharmacotherapy, Immunology, Urology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Hypertext Markup Language (HTML), Web Servers, Software Testing, Code Reusability, Web Design and Development, Web Development Tools, File Management, Full-Stack Web Development, Program Development, Frontend Integration, Cascading Style Sheets (CSS), Software Installation
Beginner · Course · 1 - 4 Weeks

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