CopilotKit

CopilotKit is an open-source framework and company developing agent-user interaction infrastructure, generative UI primitives, and the AG UI (Agent User Interaction) protocol. [source: ag-ui-protocol-specification-2026]

Core Initiatives & Contributions

1. The AG-UI Protocol

CopilotKit originated the AG-UI specification in partnership with LangChain, CrewAI, and ecosystem partners, establishing a standard event stream protocol (SSE/WebSocket) between backend agent runtimes and frontend client applications. [source: ag-ui-protocol-specification-2026]

2. Generative UI and Client Tooling

CopilotKit provides client runtime adapters across React, React Native, Next.js, and Angular, alongside multi-surface transports such as the Channels SDK for Slack and Microsoft Teams. [source: copilotkit-cma-agui-2026]

3. Claude Managed Agents Integration

In August 2026, CopilotKit collaborated with anthropic to release first-class AG-UI adapters for claude managed agents, standardizing Anthropic’s hosted event logs into client-rendered generative UI and interactive human-in-the-loop approval gates. [source: copilotkit-cma-agui-2026]

Cross-links

• ag ui protocol — protocol originated by CopilotKit
• claude managed agents — hosted agent platform integration
• anthropic — partner in CMA integration
• agent native infrastructure — execution tier