Build **agent-native applications** — on any framework, on any surface.
Generative UI, shared state, and human-in-the-loop workflows for React, Angular, Vue, React Native — and beyond the browser.
---
## What is CopilotKit
CopilotKit is a best-in-class SDK for building full-stack agentic applications, Generative UI, and chat applications.
What started as a React library is now a **multi-platform agentic framework**: the same agent can power your web app, your mobile app, and your team's Slack workspace.
We are the company behind the **[AG-UI Protocol](https://github.com/ag-ui-protocol/ag-ui)** - adopted by Google, LangChain, AWS, Microsoft, Mastra, PydanticAI, and more!
https://github.com/user-attachments/assets/72b7b4f3-b6e7-460c-a932-5746fe3c8db3
Add AI to your app in 1 minute
**Features:**
- **Chat UI** – A fully customizable chat interface that supports message streaming, tool calls, and agent responses.
- **Backend Tool Rendering** – Enables agents to call backend tools that return UI components rendered directly in the client.
- **Generative UI** – Allows agents to generate and update UI components dynamically at runtime based on user intent and agent state.
- **Shared State** – A synchronized state layer that both agents and UI components can read from and write to in real time.
- **Human-in-the-Loop** – Lets agents pause execution to request user input, confirmation, or edits before continuing.
- **Self-Learning** *(early access)* – Agents that continuously improve from user feedback via in-context reinforcement learning (CLHF).
## 🧩 Works With Your Stack
One agent backend. Every frontend.
| Platform | Status | Get Started |
| ------------------ | ------------ | ----------------------------------------------------------- |
| ⚛️ React / Next.js | ✅ GA | [Quickstart](https://docs.copilotkit.ai/built-in-agent/quickstart) |
| 🅰️ Angular | ✅ Supported | [Source Code - Quickstart coming soon](https://github.com/CopilotKit/CopilotKit/tree/main/packages/angular) |
| 💚 Vue | ✅ Supported | [Source Code - Quickstart coming soon](https://github.com/CopilotKit/CopilotKit/tree/main/packages/vue) |
| 📱 React Native | ✅ Supported | [Quickstart](https://docs.copilotkit.ai/react-native) |
Your agent logic stays the same — AG-UI handles the wire protocol, CopilotKit handles the UI layer for each framework.
## 💬 Beyond the Browser: Slack & Microsoft Teams (Discord, Google Chat coming soon...)
Your agents can run and generate Generative UI beyond the web app (**[Learn more](https://www.copilotkit.ai/integrations)**).
CopilotKit now lets you deploy the **same agent** to the places your users already work:
- **Slack** – Agents as first-class Slack apps: threads, tool calls, and human-in-the-loop approvals right in the channel.
- **Microsoft Teams** – Bring agentic workflows to the enterprise, where your org already lives.
🔒 **Early access:** We're onboarding teams now.
👉 **[Request early access →](https://go.copilotkit.ai/beyond-the-web-form)**
## 🧠 Self-Learning Agents
Improve your procuct by learning over time.
With **Continuous Learning from Human Feedback (CLHF)**, part of the [CopilotKit Intelligence Platform](https://www.copilotkit.ai/copilotkit-intelligence), agents improve with every interaction:
- **In-context reinforcement learning** – Agents automatically improve from user interactions, no model fine-tuning required.
- **Automatic prompt augmentation** – Agent behavior adapts based on recent interactions and outcomes.
- **Per-user adaptation** – Agents learn individual preferences and get better for each user over time.
- **Threads & persistence** – Full interaction history — generative UI, human-in-the-loop, shared state — captured across sessions.
Available via CopilotKit Cloud or self-hosted.
🔒 **Early access:** We're onboarding teams now.
👉 **[Request early access →](https://go.copilotkit.ai/beyond-the-web-form)**
## Quick Start
### New projects:
```bash
npx copilotkit@latest create -f
```
### Existing projects:
```bash
npx copilotkit@latest init
```
https://github.com/user-attachments/assets/7372b27b-8def-40fb-a11d-1f6585f556ad
What this gives you:
- **CopilotKit installed** – Core packages are fully set up in your app
- **Provider configured** – Context, state, and hooks ready to use
- **Agent <> UI connected** – Agents can stream actions and render UI immediately
- **Deployment-ready** – Your app is ready to deploy
[Complete getting started guide →](https://docs.copilotkit.ai/langgraph/quickstart)
## How it works:
CopilotKit connects your UI, agents, and tools into a single interaction loop.
This enables:
- Agents that ask users for input
- Tools that render UI
- Stateful workflows across steps and sessions
- One agent, deployed across web, mobile, and chat platforms
## ⭐️ useAgent Hook
The `useAgent` hook sits directly on AG-UI, giving you full programmatic control over the agent connection.
```ts
// Programmatically access and control your agents
const { agent } = useAgent({ agentId: "my_agent" });
// Render and update your agent's state
return
{agent.state.city}
```
Check out the [useAgent docs](https://go.copilotkit.ai/useagent-docs) to learn more.
https://github.com/user-attachments/assets/67928406-8abc-49a1-a851-98018b52174f
## Generative UI
Generative UI is a core CopilotKit pattern that allows agents to dynamically render UI as part of their workflow.
https://github.com/user-attachments/assets/3cfacac0-4ffd-457a-96f9-d7951e4ab7b6
### Compare the Three Types
#### Explore:
- [Static (AG-UI Protocol)](https://docs.copilotkit.ai/ag-ui-protocol)
- [Declarative (A2UI)](https://docs.copilotkit.ai/generative-ui/specs/a2ui#using-a2ui-with-copilotkit)
- [Open-Ended (MCP Apps & Open JSON)](https://docs.copilotkit.ai/generative-ui/specs/mcp-apps)
[Generative UI educational repo →](https://github.com/CopilotKit/CopilotKit/tree/main/examples/showcases/generative-ui)
## 🖥️ AG-UI: The Agent–User Interaction Protocol
Connect agent workflows to user-facing apps, with deep partnerships and 1st-party integrations across the agentic stack—including LangChain, CrewAI, Mastra, PydanticAI, and more.
[](https://go.copilotkit.ai/ag-ui)
---
```
npx create-ag-ui-app my-agent-app
```
Learn more in the AG-UI README →
## 🤝 Community
- [What's New](https://docs.copilotkit.ai/whats-new)
Follow us on LinkedIn →
Follow us on X →
## 🙋🏽♂️ Contributing
Thanks for your interest in contributing to CopilotKit! 💜
We value all contributions, whether it's through code, documentation, creating demo apps, or just spreading the word.
Here are a few useful resources to help you get started:
- For code contributions, [CONTRIBUTING.md](./CONTRIBUTING.md).
- For documentation-related contributions, [check out the documentation contributions guide](https://docs.copilotkit.ai/contributing/docs-contributions?ref=github_readme).
- Want to contribute but not sure how? [Join our Discord](https://discord.gg/6dffbvGU3D) and we'll help you out!
## Install as a Claude Code plugin
The CopilotKit monorepo doubles as a Claude Code plugin — all 9 skills (3 package meta-skills + 6 lifecycle journey skills) are available once installed.
Add the repo as a Claude Code marketplace:
```bash
claude plugin marketplace add https://github.com/CopilotKit/CopilotKit
claude plugin install copilotkit
```
Skills are discovered from `skills//SKILL.md` at the repo root. The three package meta-skills (`runtime`, `react-core`, `a2ui-renderer`) are **generated mirrors** of the source-of-truth files at `packages//skills//` — do not edit the mirror directly. To update content, edit the source under `packages/*/skills/` and run:
```bash
pnpm sync:plugin-skills
```
A lefthook pre-commit check (`pnpm check:plugin-skills`) rejects commits that drift the mirror. The plugin version is pinned to `packages/runtime/package.json` and is also kept in sync by the same script.
### Skill inventory
| Slug | Type | Source |
| ------------------------ | --------- | ---------------------------------------------- |
| `runtime` | core | `packages/runtime/skills/runtime/` |
| `react-core` | framework | `packages/react-core/skills/react-core/` |
| `a2ui-renderer` | framework | `packages/a2ui-renderer/skills/a2ui-renderer/` |
| `0-to-working-chat` | lifecycle | `skills/0-to-working-chat/` |
| `spa-without-runtime` | lifecycle | `skills/spa-without-runtime/` |
| `go-to-production` | lifecycle | `skills/go-to-production/` |
| `scale-to-multi-agent` | lifecycle | `skills/scale-to-multi-agent/` |
| `v1-to-v2-migration` | lifecycle | `skills/v1-to-v2-migration/` |
| `debug-and-troubleshoot` | lifecycle | `skills/debug-and-troubleshoot/` |
## 📄 License
This repository's source code is available under the [MIT License](https://github.com/CopilotKit/CopilotKit/blob/main/LICENSE).
