CopilotKit is an open-source framework for building app-native AI agents with dynamic, generative UI, meaning the interface itself can be shaped by the agent’s output in real time. It’s used by developers and engineering teams building AI features directly into their own applications, rather than relying on standalone chatbot widgets. The project powers the AG-UI protocol, which has support from major cloud providers including Google, Microsoft, Amazon, and Oracle, and reports millions of weekly installs. Its open-source nature and broad framework compatibility (LangChain, Mastra, PydanticAI) differentiate it from closed, proprietary agent platforms.
CopilotKit
Open-source framework for app-native AI agents.
Compliance
GDPR SOC 2
Key Features
- Dynamic UI generation — Agents can generate and modify application UI elements in real time, not just text responses.
- AG-UI protocol — An open protocol for agent-to-UI communication, supported by major cloud providers.
- Framework compatibility — Works with popular agent frameworks including LangChain, Mastra, and PydanticAI.
- Open-source core — Freely available and self-hostable, with enterprise support available separately.
- App-native integration — Built for embedding agents directly inside existing applications rather than as standalone tools.
Use Cases
- For developers — An engineering team embeds an AI agent directly into their SaaS product’s UI, with the agent able to render interactive elements.
- For enterprises — A large company adopts the AG-UI protocol to standardize how agents interact with internal and customer-facing applications.
Pricing MODELS
Open-source free
Pricing Summary
Free and open-source for self-hosted use, with custom enterprise pricing for support and additional features.
Company Size Fit
Enterprise Mid-market SMB
Technical Snapshot
API Available
Yes
LLM Provider
Multi-model
Open Source
Yes
Deployment Options
Cloud Saas, Self-hosted
Notable Customers
Majority of Fortune 500 companies (via AG-UI protocol)