Built-in Agent (TanStack AI) — Showcase

CopilotKit's BuiltInAgent in factory mode with TanStack AI as the LLM backend. The agent runs in-process inside the Next.js route handler.

• Agentic Chat
• In-Chat HITL
• Tool Rendering
• Tool-Based Gen UI
• Agentic Gen UI
• Shared State (R/W)
• State Streaming
• Sub-Agents