CopilotKit
Open-sourceThe frontend stack for AI agents with React and Angular support, makers of the AG-UI Protocol.
About CopilotKit
CopilotKit is an open-source frontend stack for building AI agents and generative UI. Written in TypeScript, it supports React and Angular, enabling developers to build agent-native applications with conversational interfaces.
Best For
- Building AI-powered chat and copilot interfaces
- Teams adding conversational AI to existing web applications
Pros & Cons
Pros
- + Frontend-focused approach simplifies AI UI development
- + React and Angular support covers major frontend frameworks
- + AG-UI Protocol provides standardized agent communication
Cons
- - Frontend-only — requires backend AI infrastructure separately
- - May need additional backend integration for complete solutions
Pricing
Open source and free to use
Key Features
- Frontend framework for AI agents with React and Angular support
- AG-UI Protocol for standardized agent-frontend communication
- Generative UI capabilities for dynamic interface creation
- TypeScript implementation for type-safe development
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