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Adding custom connectors (MCP) requires a Gemini Enterprise subscription. It is not available in the consumer Gemini app.

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1. Open the connector settings

  1. Sign in to Gemini Enterprise with your organization’s Google account and open the settings menu from the gear icon at the bottom left
Gemini Enterprise home screen
  1. Select Connectors
Connectors in the settings menu
  1. Click Add MCP Server at the top right of the connector list
Add MCP Server button on the Connectors page

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2. Add the MCP server

Fill in the MCP info tab and click Next:
  • Server URL: https://mcp.arlet.dev/mcp/
  • Name: Arlet
MCP info tab example

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3. Configure OAuth

Enter the following values in the Auth tab exactly as shown: Auth tab example Click Add to save the connector.
This Client ID / Client Secret is a shared client dedicated to Gemini Enterprise connections. Access is granted not by these values but by each user’s individual sign-in and authorization in the next step.

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4. Connect to Arlet

  1. Open the connector icon in the chat screen — Arlet appears in the list. Click Connect
Arlet in the connector list
  1. An authorization dialog appears. Click Continue to Arlet
Arlet authorization dialog
  1. Arlet’s sign-in screen opens. Sign in with Google and complete the OAuth flow
Arlet sign-in screen
  1. Once connected, Arlet can be enabled with the toggle in the connector list
Connector list after connection