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.

Board Infinity
Skills you'll gain: White-Box Testing, Performance Testing, Maintainability, Test Tools, Software Testing, Code Review, Test Automation, Software Technical Review, Test Planning, Scripting, Risk Analysis, Performance Stress Testing, Software Quality Assurance, Application Security, Test Script Development, Continuous Integration, Code Coverage, Test Case, Quality Assurance, Security Testing
★ 3.9 (15) · Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Spring Framework, JUnit, Restful API, Spring Boot, Unit Testing, Java Programming, Java, Hibernate (Java), Model View Controller, Java Platform Enterprise Edition (J2EE), Web Services, Object-Relational Mapping, Software Testing, Test Script Development, Apache Maven, Data Access, Databases, Database Management, Web Applications, Gradle
Beginner · Course · 3 - 6 Months

Skills you'll gain: Data Import/Export, Data Visualization Software, Cloud Deployment, Data Visualization, Restful API, Data Mapping, Data Presentation, Interactive Data Visualization, Extract, Transform, Load, Dashboard Creation, Histogram, Data Store, Data Transformation, Amazon Web Services, Cloud Hosting, Scalability, Cloud Management, System Monitoring, NoSQL, Query Languages
★ 4.4 (16) · Beginner · Specialization · 1 - 3 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Server Side, Web Applications, Web Design and Development, Restful API, Data Persistence, Software Architecture
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Responsive Web Design, Cloud Deployment, Web Design, Database Development, Database Systems, Front-End Web Development, Application Programming Interface (API), Full-Stack Web Development, Amazon Web Services, Cloud Computing, User Interface (UI), Authentications, Development Environment, Web Applications, Frontend Performance, Cascading Style Sheets (CSS), Continuous Deployment, Web Frameworks, Continuous Integration, Frontend Integration
Advanced · Specialization · 1 - 3 Months

LearnKartS
Skills you'll gain: Retrieval-Augmented Generation, Marketing Automation, Email Automation, Content Scheduling, ChatGPT, Email Marketing, MarTech, AI Product Strategy, AI Personalization, Digital Marketing Tools, OpenAI API, LLM Application, Social Media Content, Social Media Management, Automation, Generative AI Agents, Generative AI, Data-Driven Decision-Making, Business Analysis, AI Workflows
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Security Controls, HTML and CSS, UI Components, User Interface (UI) Design
★ 4.4 (8) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Analysis, Statistical Methods, Matplotlib, Regression Analysis, Statistical Modeling, Data Science, Data Analysis, Data Visualization, Pandas (Python Package), Anomaly Detection, Plot (Graphics), Data Visualization Software, Statistical Visualization, Data Integration, Data Collection, Data Access, Data Manipulation, Application Programming Interface (API)
★ 4 (8) · Intermediate · Course · 1 - 4 Weeks

Google DeepMind
Skills you'll gain: Google Gemini, Gemini, Generative AI Agents, AI Orchestration, LLM Application, Token Optimization, Agentic Workflows, AI Integrations, Google Cloud Platform, Tool Calling, Agentic systems, Generative Model Architectures, AI Security, Cloud Deployment, Prompt Engineering, Application Programming Interface (API), Application Deployment, Secure Coding, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Spark, Retrieval-Augmented Generation, OpenAI API, Generative AI, LLM Application, Model Evaluation, Data Preprocessing, Large Language Modeling, Generative Adversarial Networks (GANs), Predictive Modeling, Matplotlib, Keras (Neural Network Library), Fine-tuning, Transfer Learning, Deep Learning, Machine Learning Methods, Applied Machine Learning, Seaborn, Statistical Modeling, Machine Learning
★ 5 (6) · Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Kotlin, Android Jetpack, Cross Platform Development, Mobile Development, Cloud Deployment, Android Development, Mobile Development Tools, Code Reusability, Back-End Web Development, UI Components, Server Side, Google Cloud Platform, Cloud Development, Frontend Integration, MongoDB, Interoperability, User Interface (UI), Web Applications, Systems Integration, Restful API
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, AI literacy, Data Ethics, Generative AI, Artificial Intelligence, Exploratory Data Analysis, Data Cleansing, Data-Driven Decision-Making, Real Time Data, Data Analysis, AI Integrations, AI Workflows, OpenAI API, Automation, Data Validation
★ 4 (7) · Intermediate · Course · 1 - 4 Weeks