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How do I connect Scribble to Google Gemini?

Gemini connects to MCP servers in two places. In Gemini Enterprise, add Scribble as a custom MCP server data store using https://scribblecards.com/api/mcp with OAuth. In the Gemini CLI or Antigravity, add it to the mcpServers block of your settings file with httpUrl.

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#Gemini Enterprise

  1. Open your agent's tools

    In the Google Cloud console, open Gemini Enterprise and the agent you want to give this to.

  2. Add a custom MCP server

    Choose to add a data store or tool of type custom MCP server, and give it this URL:

    Text
    https://scribblecards.com/api/mcp

  3. Set authentication to OAuth 2.0

    Scribble publishes its own discovery documents, so there is no client id or secret to enter. Members of your organization sign in individually the first time they use it.

    You’ll know it worked when The Scribble tools appear in the agent's tool list.

#Gemini CLI and Antigravity

~/.gemini/settings.json
{
  "mcpServers": {
    "scribble": {
      "httpUrl": "https://scribblecards.com/api/mcp",
      "trust": false
    }
  }
}

Restart the CLI and run /mcp auth scribble to sign in. Leaving trust as false is deliberate: it keeps the confirmation prompt on tool calls, which is what stops a card being posted without you seeing it.

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