LibreAI / Dev Tools / CopilotKit
// devtools · CopilotKit/CopilotKit

CopilotKit

The frontend stack for AI agents and generative UI in React, Angular, mobile and chat apps

★ 37.8k stars⑂ 4.7k forksMITupdated 2026-10
▦ visual — this project's README ships no embeddable screenshot,
so here's a placeholder. The guide below is complete regardless.
// project facts

Project facts

CopilotKit is an open-source dev tools project by CopilotKit (CopilotKit/CopilotKit on GitHub). It has 37,846 GitHub stars and 4,713 forks, is released under the MIT license, and was last updated on GitHub on 8 October 2026.

GitHub stars
37,846
Forks
4,713
License
MIT
Last updated on GitHub
8 October 2026
Category
Dev Tools
Listing
Full install guide
Official site
Official site
// how it works

How it works

  1. Clarify your goal

    Decide what you want to achieve with CopilotKit and check the README on GitHub for requirements before installing.

  2. Get the code

    Clone the repository from GitHub (or take the packaged install route in step 3 if the README offers one).

  3. Install and configure

    Follow the project's documented install commands — the Run section below lists the exact ones — and add any required API keys or models.

  4. Run your first task

    Work through the README's quickstart example end to end, then adapt it to your own project or data.

// features

Why people love it

Generative UI

Agents render rich, app-native UI components — not just text — so results appear as cards, forms and dashboards inside your product.

useAgent hook

A first-class hook (highlighted in the README as the useAgent hook) connects your frontend components to a running agent's state and actions.

AG-UI protocol

Built on AG-UI, the open Agent-User Interaction protocol from the same team, so any AG-UI-compatible agent backend can drive the UI.

Multi-channel reach

The same agent can surface in web and mobile apps and in chat channels such as Slack, per the project's channel support.

Works with your stack

Designed to plug into existing React, Angular, Next.js and mobile codebases rather than forcing a rewrite.

Agent skills and scaffolding

Official skills and CLI scaffolding (copilotkit create / create-ag-ui-app) help you start a new agent app or add CopilotKit to an existing one.

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// run it

Run it yourself

  1. Clone the repository

    Get the CopilotKit source, which includes the packages, examples and docs.

    git clone https://github.com/CopilotKit/CopilotKit.git
    cd CopilotKit
  2. Start a new agent app

    Use the official scaffolding CLI to generate a ready-to-run agent application.

    npx copilotkit@latest create
  3. Or add it to an existing project

    Run the onboarding command in your existing app, or scaffold a plain AG-UI app with create-ag-ui-app.

    npx --yes copilotkit@latest onboard start
    # alternative: npx create-ag-ui-app my-agent-app
// use cases

What you can build

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// faq

Questions, answered

Who maintains CopilotKit?

CopilotKit is maintained by the CopilotKit organization/account on GitHub, together with open-source contributors, in the public repository CopilotKit/CopilotKit.

Is CopilotKit free to use?

Yes — the code is open source under the MIT license. You can use, modify and redistribute it under that license's terms.

Does CopilotKit need a paid API key?

CopilotKit itself is free and open source, but the agent you connect it to usually needs an LLM — so in practice you bring your own model provider API key (or a self-hosted agent backend).

How does CopilotKit compare to assistant-ui / plain chat SDKs?

Unlike a plain chat widget, CopilotKit is built around the AG-UI protocol and generative UI, so agents can render and control real app components, not only stream text.

How do I get started with CopilotKit?

Clone the repository from GitHub, follow the install commands in the Run section (taken from the project's README), and complete the documented quickstart example before adapting it to your own use case.

// keep exploring

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Get CopilotKit

Free and open — grab the source, star the repo, and start creating.