> ## Documentation Index
> Fetch the complete documentation index at: https://productbrain.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Brain Chat

> In-app workspace chat grounded in the Chain.

<Warning>
  **Early access** — Tools may be off when unauthenticated. [**Join the Product Brain Community**](https://community.productbrain.io).
</Warning>

Brain Chat is scoped to one workspace at `https://work.productbrain.io/w/<slug>/chat`. Spine shows **Brain**; docs say **Brain Chat**. Compare to external MCP in [MCP overview](/docs/mcp/overview).

Screenshot: **coming soon**.