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: Frontend Integration, CI/CD, Jenkins, Docker (Software), Spring Boot, Continuous Integration, Configuration Management, Containerization, Cloud-Native Computing, Scalability, Software Documentation, Application Deployment, Java, API Design, Java Programming, API Gateway, Back-End Web Development, JUnit, Application Programming Interface (API), React.js
★ 3.7 (22) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: LangGraph, Generative AI Agents, AI Orchestration, LangChain, Agentic systems, AI Workflows, OpenAI API, Agentic Workflows, LLM Application, Artificial Intelligence, AI Integrations, User Interface (UI), Python Programming, Context Management, Development Environment
★ 4.5 (99) · Intermediate · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Extract, Transform, Load, Data-Driven Decision-Making, Amazon Web Services, Data Literacy, Business Intelligence, Data Warehousing, Big Data, Databases, Database Systems, NoSQL, Data Analysis, Data Pipelines, Unstructured Data, Analytics, Database Management Systems, Data Processing, Cloud API, SQL, Data Storage, Data Architecture
★ 4.6 (60) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Web Services, Amazon Elastic Compute Cloud, Identity and Access Management, Cloud Computing, User Provisioning, Cloud Management, Cloud Infrastructure, Cloud Security, Load Balancing, User Accounts, Cloud API, Cloud Services, Linux Servers, Apache, Web Servers, Linux Administration, System Configuration, Command-Line Interface, Debugging
★ 4.5 (134) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: ASP.NET, Microsoft Copilot, C# (Programming Language), Application Programming Interface (API), Middleware, .NET Framework, API Design, Restful API, Back-End Web Development, Maintainability, Server Side, Programming Principles, JSON, Code Reusability, Software Architecture, Software Documentation, Secure Coding
★ 4.5 (81) · Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: AI Integrations, Cloud Deployment, Cloud Applications, Cloud Development, Cloud API, Application Deployment, API Gateway, OpenAI API, Cloud Hosting, Cloud Security, Application Programming Interface (API), Cloud Computing, Secure Coding, Serverless Computing, LLM Application, Cloud Technologies, OpenAI, Distributed Computing, Performance Tuning, Debugging
★ 4.9 (36) · Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android (Operating System), Application Deployment, JSON, Web Services, Restful API, Mobile Development, Application Development, Application Programming Interface (API), Data Persistence, User Interface (UI) Design, Animations
★ 4.6 (103) · Mixed · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: DeepSeek API, Deepseek, User Interface (UI), LLM Application, AI Workflows, AI Integrations, Human Computer Interaction, Agentic Workflows, Retrieval-Augmented Generation, AI Product Strategy, Embeddings, Application Deployment, Case Studies
★ 3.8 (11) · Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Java Programming, Java, Program Development, Programming Principles, Computer Programming, Maintainability, Database Development, Object Oriented Programming (OOP), JUnit, Database Application, UI Components, C and C++, Data Access, Object Oriented Design, User Interface (UI), Application Development, Event-Driven Programming, File I/O, Data Structures
★ 4.7 (210) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Google Cloud Platform, Dataflow, Data Pipelines, Data Import/Export, Feature Engineering, Data Lakes, Model Deployment, Real Time Data, Dashboard Creation, Apache Kafka, Tensorflow, Data Governance, Data Warehousing, Apache Spark, Dashboard, Data Infrastructure, Data Architecture, Big Data, Extract, Transform, Load, Unstructured Data
★ 4.3 (82) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Docker (Software), Containerization, Web Design and Development, Restful API, User Interface (UI) Design, Node.JS, Application Deployment, MongoDB, Database Management, Databases, JavaScript Frameworks, Web Applications, Web Development, Web Development Tools, Database Application, Server Side, Back-End Web Development, Full-Stack Web Development, Javascript
★ 4.2 (33) · Intermediate · Guided Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Role-Based Access Control (RBAC), Authorization (Computing), Identity and Access Management, AWS Identity and Access Management (IAM), Security Controls, Geographic Information Systems, Geospatial Information and Technology, Encryption, Data Security, Network Security, Public Key Infrastructure, Cryptography, Web Applications, Wireless Networks
★ 4.6 (377) · Beginner · Course · 1 - 4 Weeks