Documentation

Build AI-powered apps with CopilotKit

CopilotKit ships deep integrations across every major agent framework and SDK. Pick your agentic backend below — the rest of the docs adapt every snippet and code sample to that framework.

Step 1

Pick an agentic backend

We store your choice locally so every page renders the right code.

Most Popular
LangGraph (Python)LangGraph (TypeScript)MastraCrewAI (Crews)
Agent Frameworks
Google ADKPydanticAIClaude Agent SDK (Python)Claude Agent SDK (TypeScript)
Enterprise
MS Agent Framework (Python)MS Agent Framework (.NET)Spring AI
Emerging
LangGraph (FastAPI)AgnoAG2LlamaIndexAWS StrandsLangroid
Step 2

Or jump into a topic

Getting Started
Quickstart
Five-minute setup for a working copilot
Coding Agents
Bootstrap with Claude Code, Cursor, Windsurf, and friends
Basics
Chat Components
Drop-in CopilotChat & CopilotSidebar for agentic chat
Custom Look & Feel
Theme, slot, and fully-headless chat UI
Generative UI
Generative UI
Render live React components from the agent's stream
App Control
Frontend Tools
Expose client-side actions to the agent
Shared State
Two-way state binding between the UI and the agent
Human-in-the-Loop
Intercept tool calls for explicit user approval