MCP

Gemini

Last verified: 2026-07-21

⚠️ Coming soon — early, narrow beta. Connecting any 3rd-party MCP to the Gemini app is currently still gated behind Gemini Spark, which today only covers personal Google accounts in the US, 18+ (rolling out from the AI Ultra plan). If that's not you — a work / school (Workspace) account, outside the US, or a plan without Spark yet — use Antigravity instead: Google's MCP-capable client that's generally available today.

If you're in the Spark beta, Gemini talks to Manyreach directly: you add the connector once in the Gemini web app, then use it there and in the mobile app. Write actions (create a campaign, add prospects) ask you to confirm first.

Prerequisites

  • A Manyreach account + your API key (Manyreach web app → API & Integrations)
  • Gemini Spark access — a personal Google account, US-based, 18+. Work and school accounts can't add custom apps; if you don't have Spark, use Antigravity instead

Steps

  1. In a browser, open gemini.google.com → Settings & help → Connected Apps.
  2. Under Custom apps for Spark, choose Add a custom app and paste the server URL: https://mcp.manyreach.com/mcp
  3. Confirm, then authorize with your Manyreach API key (see below). The connector is now available in the Gemini web app and the mobile app.

What the authorization looks like

Your browser opens a Manyreach authorization page. Paste your API key there and click Authorize. The key is checked once and never shown to the AI — afterwards the connection stays signed in on its own.

Verify

Ask Gemini to "describe the Manyreach catalog". It should call the describe tool and list resources like campaign, prospect, and sender.

Troubleshooting

  • No "Custom apps for Spark" under Connected Apps — you're not in the Spark beta (US-only, personal accounts, 18+). Use Antigravity instead.
  • You can only add it in the browser — the mobile app can use the connector but can't add one; set it up at gemini.google.com first and it shows up in the mobile app on its own.