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Benjamin Taylor
4d74bdc5c3
Creating a Node listener or an Express handler now STARTS activation of the runtime's declared managed Channels, so `channels.ready()` becomes await-and-observe instead of the thing you must remember to call. A declared Channel connects because it was declared. The failure mode this removes: forget `ready()` and you get a process that serves HTTP, looks healthy, and is silently disconnected with zero output. Auto-start's worst case is an activation error in the logs. The generic Fetch handler stays LAZY — it is the serverless/edge entry point, where isolates freeze and recycle per request and separate cold starts would mint competing listeners for the same Channel. `createCopilotHonoHandler` stays lazy for the same reason: it is our Next.js App Router surface in practice (every `examples/showcases/*` route handler builds one at module scope), and its TSDoc now says so loudly. `activateChannels: false` remains the opt-out that opens no socket. Consequence for host code: the shutdown-handler boundary moves earlier. Signal handlers must be registered before the listener is CREATED, not merely before `ready()` — otherwise a Ctrl-C during the connect window hits Node's default handler and leaks a live gateway session. The slack and teams examples and the docs snippets are restructured accordingly. Also migrates the seven channel-package README quickstarts off the generic handler (a request handler a socket-mode bot constructs and never serves) onto the Node listener, so they inherit auto-start and agree with the docs site. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
CopilotKit Examples
This directory contains 50 consolidated demo repositories showcasing CopilotKit integrations, canvas apps, and showcases.
Each example is a self-contained project. To get started:
GIT_LFS_SKIP_SMUDGE=1 git clone <repo-url>
cd examples/<category>/<name>
# Follow the example's own README for setup instructions
Note: The
v1/andv2/directories at the top level are legacy workspace examples from earlier CopilotKit releases and are not part of the consolidated demo set.
Integrations (19)
Framework integration starters demonstrating CopilotKit with various agent frameworks.
| Example | Description |
|---|---|
| langgraph-python | Starter template for building AI agents using LangGraph (Python) and CopilotKit |
| langgraph-js | Starter template for building AI agents using LangGraph (JS) with Turborepo monorepo |
| langgraph-fastapi | Starter template for building AI agents using LangGraph with FastAPI and Poetry |
| mastra | Starter template for building AI agents using Mastra and CopilotKit |
| crewai-flows | Starter template for building AI agents using CrewAI Flows (uv-based) |
| llamaindex | Starter template with a LlamaIndex investment analyst agent |
| pydantic-ai | Starter template with a PydanticAI investment analyst agent |
| ms-agent-framework-python | CopilotKit with Microsoft Agent Framework (Python/FastAPI, AG-UI protocol) |
| ms-agent-framework-dotnet | CopilotKit with Microsoft Agent Framework (.NET/C#, AG-UI protocol) |
| strands-python | Starter template with a Strands investment analyst agent |
| mcp-apps | Integration of MCP Apps with CopilotKit using Three.js |
| adk | Starter template using Google ADK with an investment analyst agent |
| agent-spec | Starter for Agent Spec with A2UI-powered frontend tool rendering |
| a2a-a2ui | Starter for A2UI + A2A with a restaurant finder agent (Gemini/ADK) |
| agno | Starter template using Agno with an investment analyst agent |
| crewai-crews | Starter template for building AI agents using CrewAI Crews |
| a2a-middleware | Multi-agent starter with A2A Protocol and AG-UI Protocol (LangGraph + ADK) |
| claude-sdk-python | Starter template using the Claude Agent SDK (Python) and CopilotKit |
| claude-sdk-typescript | Starter template using the Claude Agent SDK (TypeScript) and CopilotKit |
Canvas (7)
AI-powered canvas applications with visual card interfaces, real-time state sync, and HITL workflows.
| Example | Description |
|---|---|
| langgraph-python | AG-UI canvas starter with LangGraph — interactive cards with real-time AI sync |
| llamaindex | AG-UI canvas starter with LlamaIndex — visual cards, multi-step planning, HITL |
| llamaindex-composio | Hackathon starter with LlamaIndex, CopilotKit, and Composio (Google Sheets integration) |
| pydantic-ai | AG-UI canvas starter with PydanticAI — visual cards, planning, HITL |
| mastra | AG-UI canvas starter with Mastra — interactive cards with real-time AI sync |
| gemini | Open Gemini Canvas — post generator and stack analyzer agents (Gemini + LangGraph) |
| mastra-pm | AG-UI + Mastra workshop — shared state, multiple clients, generative UI |
Showcases (24)
Full-featured demo applications highlighting CopilotKit capabilities in real-world scenarios.
| Example | Description |
|---|---|
| banking | Banking app demo with authorization, multiple operations, and generative UI |
| presentation | PowerPoint-like web app built with CopilotKit |
| deep-agents | Deep research assistant with planning, memory/files, and generative UI (Tavily) |
| deep-agents-job-search | Job application assistant — resume parsing, skill extraction, DeepAgents orchestration |
| generative-ui | Generative UI for agentic apps — AG-UI protocol showcase |
| generative-ui-playground | Playground for static GenUI, MCP Apps, and A2UI generative UI types |
| mcp-apps | MCP Apps demo — airline booking, hotel booking, investment simulator, kanban board |
| research-canvas | ANA (Agent Native Application) — research canvas with Tavily search and LangGraph |
| mcp-demo | Working Memory — MCP server-client integration for project management (Linear) |
| strands-file-analyzer | AI-powered document analysis with Strands Agents and Amazon Bedrock |
| microsoft-kanban | Kanban board demo with CopilotKit + Microsoft Agent Framework (.NET, AG-UI) |
| multi-page | Multi-page Remix app with CopilotKit |
| orca | Cisco CopilotKit demo — PR and repository analytics dashboard |
| pydantic-ai-todos | AI-powered todo board with PydanticAI (Todo, In-Progress, Done columns) |
| scene-creator | Scene creator with LangGraph + Gemini 3 — AI-generated characters and backgrounds |
| adk-dashboard | Generative canvas with Google ADK — metrics, charts, and real-time data |
| langgraph-js-support-agents | Multi-agent telecom support system with intent, lookup, reply, and escalation agents |
| multi-agent-canvas | Open Multi-Agent Canvas — manage multiple agents (travel, research, MCP) in one chat |
| chatkit-studio | Open ChatKit Studio — explore and build embeddable chat experiences |
| enterprise-brex | Enterprise banking demo with authorization, operations, and generative UI |
| a2a-travel | A2A + AG-UI multi-agent travel demo (LangGraph + Google ADK) |
| spreadsheet | AI-powered Excel-like spreadsheet web app |
| todo | Simple todo app built with CopilotKit |
| strands-crm | Enterprise sales CRM — dashboard, pipeline, products, quotes, reports & agentic canvas (TypeScript Strands + AG-UI) |