CopilotKit Raises $27M to Bury the Chatbot UI
CopilotKit closed a $27M Series A today led by Glilot Capital, NFX and SignalFire. Atai and Uli Barkai cofounded it. Includes $7M previously unannounced seed plus $20M new Series A. The pitch is direct: stop returning long blocks of text. Put the agent inside the app, let it understand what the user is doing, take action, render the right interface inline.
The protocol is the moat. AG-UI is what sits between the agent runtime and the host application. A lot of Fortune 500 companies are running it in production. Deutsche Telekom, Docusign, Cisco, S&P Global as paying enterprise customers. Millions of installs per week between CopilotKit and AG-UI. This is the rare developer-tools Series A where the open-source protocol genuinely has gravity before the company has scaled the business model.
The new product launching today is CopilotKit Enterprise Intelligence β self-hostable bundle of infrastructure for deploying agents inside your existing app. The bet is that every SaaS team is going to add an agent layer next year, but nobody wants to ship "yet another chat box." So they ship a copilot that reads the screen, knows the user's role, and can fill forms or trigger workflows directly. That's the standard product spec for B2B SaaS in 2026.
Why this matters for the agent thesis. The agent UI layer was the missing rail. Anthropic, OpenAI, Google all ship raw model APIs. Sierra and Decagon ship the customer-service vertical UX. Manus and Cloud Computer ship the agent operating system. CopilotKit ships the in-app agent host β the place where agents render to the user's existing workflow without forcing a new product surface. The four layers are now structurally complete: model, host, surface, vertical.
Site: copilotkit.ai. AG-UI protocol: github.com/CopilotKit/CopilotKit. Series A coverage: techcrunch.com/2026/05/05/copilotkit-raises-27m-to-help-devs-deploy-app-native-ai-agents
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The protocol is the moat. AG-UI is what sits between the agent runtime and the host application. A lot of Fortune 500 companies are running it in production. Deutsche Telekom, Docusign, Cisco, S&P Global as paying enterprise customers. Millions of installs per week between CopilotKit and AG-UI. This is the rare developer-tools Series A where the open-source protocol genuinely has gravity before the company has scaled the business model.
The new product launching today is CopilotKit Enterprise Intelligence β self-hostable bundle of infrastructure for deploying agents inside your existing app. The bet is that every SaaS team is going to add an agent layer next year, but nobody wants to ship "yet another chat box." So they ship a copilot that reads the screen, knows the user's role, and can fill forms or trigger workflows directly. That's the standard product spec for B2B SaaS in 2026.
Why this matters for the agent thesis. The agent UI layer was the missing rail. Anthropic, OpenAI, Google all ship raw model APIs. Sierra and Decagon ship the customer-service vertical UX. Manus and Cloud Computer ship the agent operating system. CopilotKit ships the in-app agent host β the place where agents render to the user's existing workflow without forcing a new product surface. The four layers are now structurally complete: model, host, surface, vertical.
Site: copilotkit.ai. AG-UI protocol: github.com/CopilotKit/CopilotKit. Series A coverage: techcrunch.com/2026/05/05/copilotkit-raises-27m-to-help-devs-deploy-app-native-ai-agents
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