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CopilotKit

SDK for agent-native apps: Generative UI, shared state, human-in-the-loop.

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About

CopilotKit is the SDK for building agent-native applications: it sits as the horizontal layer between your agents and your users, adding Generative UI (agents render live React components, not just text), shared state between agent and app, and human-in-the-loop approvals. It works across React, Angular, Vue, React Native, Slack, and Microsoft Teams — one agent can power your web app, mobile app, and team chat. Bring-your-own-agent support connects any agent framework (including AG-UI, already in this catalog) to those surfaces. MIT, 37.9k stars. A paid 'CopilotKit Intelligence' tier covers production threads, memories, and learning agents.

What it can do

  • **Generative UI**: agents render interactive components, not just markdown
  • **Shared state**: agent and app read/write the same state
  • **Human-in-the-loop**: approvals and interventions built into the loop
  • **Multi-surface**: web, mobile, Slack, Microsoft Teams from one agent
  • **Bring your own agent**: connects LangGraph, CrewAI, AG-UI, and custom agents
  • **CopilotKit Intelligence**: production threads, user memories, learning agents (paid)

Setup

```bash

npm install @copilotkit/react-core @copilotkit/react-ui

```

```tsx

import { CopilotKit } from "@copilotkit/react-core";

<CopilotKit runtimeUrl="/api/copilotkit">

{/ your app + <CopilotPopup /> /}

</CopilotKit>

```

Needs a runtime endpoint (self-hosted or CopilotKit Cloud). Docs: docs.copilotkit.ai.

Prerequisites

Node.js 18+; React (or Angular/Vue/React Native) app. An agent backend + LLM provider keys.

Use cases

agentschat UIsgenerative UIhuman-in-the-loop

Works with

customCursorGeneric APIClaude Code

Trust score — 9/10

/10 trustVerified

Scored 9/10 (verified tier, metrics-v1). Evidence: 37,968 GitHub stars (log-scaled vs catalog peers); last push 0d ago; 100 releases/12mo; 308 open issues. Manual review: agent-native app SDK (Generative UI, shared state, HITL); 37.9k stars; bring-your-own-agent + AG-UI; paid Intelligence tier is the monetization path — check OSS vs paid split. License: MIT.

★ 37,968 GitHub stars

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
8.5/10
Maintenance · recency, releases, issue load
9.7/10
Openness · license + docs
10.0/10
Manual review · sanity read + red-flag check
9.0/10
  • · 37,968 GitHub stars (log-scaled vs catalog peers)
  • · last push 0d ago; 100 releases/12mo; 308 open issues
  • · manual review: agent-native app SDK (Generative UI, shared state, HITL); 37.9k stars; bring-your-own-agent + AG-UI; paid Intelligence tier is the monetization path — check OSS vs paid split

Sources

Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.