ChatGPT

Connect AllMCP to ChatGPT as a custom app — sign in with your AllMCP account, no API key required.

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Setup

1. Enable developer mode

   In ChatGPT, open Settings → Apps & Connectors → Advanced settings and turn on Developer mode. Custom MCP apps are available on plans that include connector development.

2. Create the app

   Go back to Apps & Connectors, choose Create app (New App), and fill in:

   • Name — AllMCP
   • MCP server URL:

   https://go.allmcp.co/mcp/

   • Authentication — select OAuth. ChatGPT discovers the sign-in settings from the URL automatically; you don’t need to enter a client ID or secret.

3. Authorize with your AllMCP account

   ChatGPT opens the AllMCP authorization page. Continue with Google or GitHub — the same one-click sign-in as the dashboard.

4. Verify it’s working

   Start a new chat, enable the AllMCP app for the conversation, and ask:

   What integrations does AllMCP support?

   ChatGPT returns the full provider catalog, so you know the connection is live.

Caution

Pick OAuth, not “No authentication”. With authentication set to None, ChatGPT can list AllMCP’s tools but every call is rejected — the connection looks alive and isn’t. OAuth signs the requests with your account.

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Connect your first provider

Ask in plain language. For a provider that uses a key or webhook URL, include the credential in your message:

Connect my Bitrix24. The webhook URL is https://my-portal.bitrix24.ru/rest/1/abc123/

For an OAuth provider, just name it:

Connect Google Sheets

Note

You can disconnect ChatGPT from your AllMCP dashboard anytime — any access it granted expires on its own shortly after.

Quickstart Connect AllMCP to your agent in under 2 minutes.

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