CopilotKit
ActiveDescription
The Frontend Stack for Agents & Generative UI. React + Angular component library, makers of the AG-UI Protocol, enabling AI agents to work directly in application UIs.
Key Features
- Chat UI — React-based chat interface with message streaming, tool calls, and agent responses
- Generative UI — Agents dynamically generate and update UI components at runtime based on user intent
- Shared State — Synchronized state layer that agents and UI components read/write in real time
- Human-in-the-Loop — Agents pause execution to request user input, confirmation, or edits
- useAgent Hook — AG-UI protocol hook for programmatic agent state access and control
- AG-UI Protocol — Agent-user interaction protocol with integrations for LangGraph, CrewAI, and more
Use Cases
💡 Build SaaS apps with AI assistants featuring conversational interaction and dynamic UI rendering
💡 Develop enterprise Copilot products with multi-step workflows and human approval gates
💡 Create agent-powered internal tools for data querying and automated operations
💡 Build customer service chatbots with tool calls and real-time UI component rendering
💡 Embed AI agents into existing React/Angular apps to add generative UI capabilities
Strengths & Limitations
✅ Strengths
- • Actively maintained, recent updates
- • High community interest (37.2k stars)
- • Permissive open-source license (MIT)
- • Established track record (3 years in production)
Categories
Quick Start
# New projects
npx copilotkit@latest create -f <framework>
# Existing projects
npx copilotkit@latest init