> ## 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.

# ChatGPT

> Use Product Brain from ChatGPT when MCP tools are available.

<Warning>
  **Early access** — ChatGPT MCP availability varies by plan and rollout. [**Join the Product Brain Community**](https://community.productbrain.io).
</Warning>

Use MCP for ChatGPT-style environments because they usually do not share a local terminal with your repository.

## Setup

1. Create or copy the Product Brain MCP configuration from your workspace.
2. Add it to the MCP-capable ChatGPT environment.
3. Start a new chat and ask it to orient for the task.

## First prompt

```text theme={null}
Use Product Brain to orient for this task: "..."
```

When the work produces durable knowledge, ask ChatGPT in plain language:

```text theme={null}
Save the decision we just made and explain why it matters for future sessions.
```

## Boundary

ChatGPT can use the Chain for context and capture, but code execution still depends on the environment it is connected to. For repo-local development, use a terminal-capable assistant with the CLI.