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: Make.com, Email Automation, DeepSeek API, Deepseek, Agentic Workflows, AI Workflows, User Interface (UI), LLM Application, AI Orchestration, AI Integrations, Human Computer Interaction, No-Code Development, Retrieval-Augmented Generation, AI Product Strategy, Automation, Application Programming Interface (API), Workflow Management, Natural Language Processing, Prompt Engineering, Debugging
★ 4.1 (66) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Prompt Engineering, OpenAI API, Education Software and Technology, Generative AI, AI Integrations, OpenAI, Scripting, Scripting Languages, Python Programming, Application Programming Interface (API), Application Development, Machine Learning, Software Engineering
★ 4.4 (80) · Intermediate · Guided Project · Less Than 2 Hours

University of Illinois Urbana-Champaign
Skills you'll gain: Cloud Infrastructure, Cloud Services, Cloud Technologies, Cloud Computing, Cloud Storage, Cloud Platforms, Cloud Solutions, Cloud Computing Architecture, Infrastructure As A Service (IaaS), Data Storage, Middleware, Virtualization and Virtual Machines, Containerization, Data Storage Technologies, Virtualization, Virtual Machines, Cloud Applications, Cloud API, Amazon S3, Platform As A Service (PaaS)
★ 4.3 (847) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: React.js, Routing Protocols, UI Components, Code Reusability, JavaScript Frameworks, Front-End Web Development, Frontend Performance, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), Debugging, Web Development Tools, Web Frameworks, Data Management, Context Management, Javascript, Application Programming Interface (API), Data Mapping
★ 4.7 (263) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Node.JS, API Gateway, MySQL, Restful API, MongoDB, OAuth, Microservices, API Design, NoSQL, Object-Relational Mapping, Application Programming Interface (API), Database Design, Relational Databases, Unit Testing, SQL, Databases, MySQL Workbench, Server Side, Application Deployment, Javascript
★ 3.6 (116) · Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Java Programming
★ 4.3 (163) · Advanced · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Responsible AI, Generative AI, Generative AI Agents, Prompt Engineering, Amazon Bedrock, Data Ethics, AWS SageMaker, AI Workflows, Agentic systems, AI Product Strategy, Agentic Workflows, Amazon Web Services, AI Integrations, LLM Application, AI Orchestration, MLOps (Machine Learning Operations), Application Programming Interface (API), Application Development, Solution Architecture, Data Management
★ 4.5 (127) · Beginner · Professional Certificate · 1 - 3 Months

Skills you'll gain: Test Driven Development (TDD), Gherkin (Scripting Language), Test Tools, Behavior-Driven Development, Test Automation, Unit Testing, Software Testing, Development Testing, Test Case, Software Engineering Tools, Test Data, Code Coverage, Scenario Testing, Restful API, Mockups, Microservices
★ 4.8 (252) · Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Web Scraping, Scripting, Test Script Development, Version Control, GitHub, Unstructured Data, Git (Version Control System), Scripting Languages, Automation, Shell Script, Email Automation, Unit Testing, File Systems, File I/O, Command-Line Interface, File Management, Cloud API, Restful API, Application Programming Interface (API), Productivity
★ 3.7 (52) · Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Natural Language Processing, Large Language Modeling, Transfer Learning, Tensorflow, Google Cloud Platform, Keras (Neural Network Library), Recurrent Neural Networks (RNNs), Embeddings, Deep Learning, AI Workflows, Artificial Neural Networks, Cloud API, Feature Engineering, Model Training
★ 4.4 (540) · Advanced · Course · 1 - 3 Months

Duke University
Skills you'll gain: Rust (Programming Language), Containerization, Data Pipelines, CI/CD, Docker (Software), Jenkins, Application Deployment, DevOps, LLM Application, Continuous Integration, Hugging Face, Large Language Modeling, Test Case, Restful API, Serverless Computing, Generative AI, Command-Line Interface, Natural Language Processing, Computer Programming, Cloud Computing
★ 3.9 (313) · Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Prompt Engineering, LLM Application, OpenAI API, LangGraph, Generative AI Agents, AI Orchestration, LangChain, Agentic systems, AI Workflows, OpenAI, Agentic Workflows, Hugging Face, Large Language Modeling, Artificial Intelligence and Machine Learning (AI/ML), Embeddings, Artificial Intelligence, Data Processing, Vector Databases, Retrieval-Augmented Generation, Python Programming
★ 4.4 (142) · Intermediate · Specialization · 3 - 6 Months