CopilotKit · 2026-05-05 · major
CopilotKit Raises $27M for AG-UI — Agent-to-UI Protocol Now Backed by Google, Microsoft, Amazon, Oracle
Seattle's CopilotKit raised $27M Series A from Glilot, NFX, and SignalFire and shipped CopilotKit Enterprise Intelligence — a self-hostable bundle for the AG-UI protocol now adopted by Google, Microsoft, Amazon, Oracle, LangChain, Mastra, PydanticAI, and Agno.
$27M Series A and an enterprise-grade bundle put AG-UI in the same conversation as MCP and A2A.
Key specs
| GitHub stars | 30,660 |
|---|---|
| Raise | $27M Series A |
| Enterprise customers | Deutsche Telekom, Docusign, Cisco, S&P Global |
What is it?
CopilotKit, a Seattle-based open-source company, raised $27M Series A and launched CopilotKit Enterprise Intelligence — a self-hostable distribution for AG-UI, the open protocol that wires AI agents into existing application UIs. The protocol standardizes streaming chat, frontend tool calls, and shared agent–UI state.
How does it work?
AG-UI runs alongside Model Context Protocol (MCP) and Google's Agent2Agent (A2A). MCP gives agents tools, A2A handles agent-to-agent handoff, AG-UI handles the agent-to-UI rendering channel. CopilotKit's React/Angular SDK speaks AG-UI so an agent can return interactive components and update them as state changes.
Why does it matter?
Google, Microsoft, Amazon, and Oracle now support AG-UI; LangChain, Mastra, PydanticAI, and Agno integrate it. Enterprise adopters include Deutsche Telekom, Docusign, Cisco, and S&P Global. Round was led by Glilot Capital with NFX and SignalFire — proceeds back the new Enterprise Intelligence offering and team expansion.
Who is it for?
frontend engineers shipping in-app agents, agent platform teams
Try it
npx copilotkit init