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Connect OpenBrain to ChatGPT ​

OpenAI’s ChatGPT adds MCP and custom connector support on a rolling basis across desktop, mobile, and team plans. The exact menus change; use OpenAI’s help center for the latest names (“connectors,” “apps,” or “MCP”).

Before you start ​

  • Create your account and API key
  • Your OpenBrain must be reachable over HTTPS from the public internet (localhost-only URLs will not work from ChatGPT’s servers)

Typical setup (when MCP is available) ​

  1. Open ChatGPT Settings.
  2. Find Connectors, Apps, or Beta features and enable MCP if it is off.
  3. Add a custom connector or MCP server:
    • Endpoint / URL: https://YOUR_OPENBRAIN_HOST/mcp
    • Auth: Bearer token — paste the API key from the OpenBrain dashboard
    • Headers (if supported): X-Organization-Id: YOUR_ORG_UUID
  4. Turn the OpenBrain connector on for a new chat.
  5. Test: “Use OpenBrain to search for anything about our project” or “run openbrain health.”

If you do not see MCP settings ​

ChatGPT may not expose MCP on your account yet. Options:

Security ​

  • Treat the API key like a password; revoke it in the dashboard if shared accidentally.
  • Prefer team/workspace policies that restrict which connectors members may install.

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