Agentic AI Tutorials

Agents that think, call tools and work together: ReAct, MCP, LangGraph. Every lesson is free, visual and written in simple English.

In-depth visual guides

Agentic AIAI Agents & the ReAct Loop

Watch an AI agent think, call tools and observe results in an animated ReAct loop. Learn what makes an agent different from a chatbot, how tool calling works, agent patterns, MCP, frameworks like LangGraph and CrewAI, and how to keep agents safe.

10 min read1 interactive visualsBeginner

Agentic AI

What Is an AI Agent?Beginner · 5 minTool Calling ExplainedBeginner · 5 minMCP in 5 MinutesIntermediate · 5 minMulti-Agent PatternsAdvanced · 8 min

AI Frameworks

LangChain: Complete Interactive NotesBeginner · 25 minLangGraph: Complete Interactive NotesIntermediate · 25 minLlamaIndex: Interactive NotesIntermediate · 15 minWhich AI Framework Should You Use?All levels · 10 min