Piestar Brain

Claude.ai

Web and desktop, on the Piestar workspace

1. An Owner adds the connector once, under Organization settings → Connectors → Add custom connector, using the URL above.
2. Everyone else opens Settings → Connectors and clicks Connect beside Piestar Brain.
3. Sign in with your @piestar.com Google account.

No prompt appears if you skip this: an unconnected account simply sees no Brain tools.

Claude Code

Terminal, desktop app, and IDE extensions

Piestar staff get this from the ps plugin on git pull plus a restart. To add it by hand:

claude mcp add --transport http piestar-brain \
  https://brain.piestar.com/mcp

1. Run /mcp and choose piestar-brain to authenticate. A browser window completes the sign-in.
2. Confirm with /mcp that it reads connected.

ChatGPT

OpenAI, on a Business, Enterprise or Edu workspace

1. In Settings → Connectors → Advanced → Developer mode, choose Create.
2. Name it Piestar Brain, paste the URL above as the MCP server URL, and set authentication to OAuth.
3. Click Connect and sign in with your @piestar.com Google account.
4. Enable the connector in the composer's + menu for chats where you want it.

OpenAI API

Anything you build yourself

The Responses API reaches a remote MCP server directly. Pass the OAuth access token as a bearer header.

{
  "model": "gpt-5",
  "tools": [{
    "type": "mcp",
    "server_label": "piestar_brain",
    "server_url": "https://brain.piestar.com/mcp",
    "headers": {"Authorization": "Bearer $TOKEN"}
  }],
  "input": "What did we agree on ACMA Engine pricing?"
}