ai-agent

CopilotKit: Build Agent‑Powered UI Faster with 38k+ GitHub Stars

Name: CopilotKit: Build Agent‑Powered UI Faster with 38k+ GitHub Stars
Author: CopilotKit

Empowers founders to create AI‑agent interfaces across React, Angular, mobile, Slack and more—ideal for teams building generative UI and next‑gen assistants.

From the repo · “The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol”

38,158 stars+148★ this week4,755 forksTypeScriptGuide quality 9/10 · reviewed Sep 29Install verified Sep 21Updated 10/21/2026100% free · open source

What it does

CopilotKit allows founders to build generative UI for their applications using a variety of frontend frameworks such as React and Angular

When to use it

•Building a dynamic UI that adapts to user input and interactions
•Creating a conversational interface for a web or mobile application
•Developing a custom UI component that integrates with a larger frontend framework

Ready-to-paste prompt

Create a new generative UI component with `copilot.defineComponent('MyComponent', { template: '<div>Hello World!</div>' })`

Heads up: Make sure to configure the AG-UI Protocol correctly in your `copilot.config.js` file, as it is required for CopilotKit to function properly

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

⚡ Runs out of the box✓ Install verified 9/21/2026

A prompt/skill package — nothing to install beyond adding it to your AI tool.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/copilotkit && curl -fsSL https://workflowstacks.com/api/skills/copilotkit/claude-skill -o ~/.claude/skills/copilotkit/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How CopilotKit: Build Agent‑Powered UI Faster with 38k+ GitHub Stars works

Codeflow

Free to inspect

CopilotKit: Build Agent‑Powered UI Faster with 38k+ GitHub Stars is a very large TypeScript project (~1.4M lines across 12547 code files, plus 1877 test files). You install it into your AI tool with one command; there is nothing to run yourself. Last commit this month, MIT license, has a test suite.

Size

Very large codebase

~1.4M lines · 12547 code files · days to read — use, don't read

Setup

Install as a skill / plugin

Add it to Claude Code (or your AI tool) with one command — 22 skills inside. Nothing to run yourself.

Runs on

Inside your AI tool

Helper scripts use Node.js

TypeScript 79%MDX 8%Python 6%Shell 1%CSS 1%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
AGENTS.md
The instructions the AI actually follows
3
skills/a2ui-renderer/SKILL.md
Inside skills/ — an example of what the AI is told to do
4
examples/README.md
A worked example — copy this to get going

What's in each folder

skills/Prompts, skills & agent definitions109 files

packages/Sub-packages / plugins2138 files

examples/Examples you can copy5280 files

showcase/Folder12720 files

scripts/Helper scripts146 files

community/Community contributions63 files

sdk-python/Folder46 files

dev-docs/Folder11 files

READMEHas testsDocumentedCI checksExamples includedMIT licenseUpdated this month

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

⚡ Runs out of the box✓ Install verified 9/21/2026

A prompt/skill package — nothing to install beyond adding it to your AI tool.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/copilotkit && curl -fsSL https://workflowstacks.com/api/skills/copilotkit/claude-skill -o ~/.claude/skills/copilotkit/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

CopilotKit

Language

TypeScript