Amazon Ads, Seller Central & Vendor Central in Google Gemini

How do I connect Amazon Ads to Google Gemini?

Google Gemini connects to Amazon Ads, Seller Central, and Vendor Central through the Marketplace Ad Pros MCP server. In the Gemini app, open Settings, then Connected Apps, add a custom app with the server URL https://app.marketplaceadpros.com/mcp, and sign in. Developers can add the same URL to Gemini CLI or Google Antigravity. Each client registers itself automatically, so there are no API keys to copy.

Last updated: September 16, 2026. Setup steps follow Google's documentation for Gemini custom apps, Gemini CLI, and Antigravity.

Gemini app (gemini.google.com)

1. On a computer, go to gemini.google.com. Custom apps are added on the web and then sync to the mobile app.
2. Open Settings and select Connected Apps.
3. Under Custom apps, select Add a custom app.
4. Enter the server URL https://app.marketplaceadpros.com/mcp. Leave Advanced features alone; no client ID or secret is needed.
5. Select Next, sign in with your Marketplace Ad Pros login, and choose which permissions to grant.
6. Start a new chat and ask about your Amazon data.

Gemini CLI

Add the server, then sign in from inside Gemini CLI:

gemini mcp add --transport http marketplace-ad-pros https://app.marketplaceadpros.com/mcp

/mcp auth marketplace-ad-pros

Or add it to ~/.gemini/settings.json yourself. OAuth is discovered automatically:

{
  "mcpServers": {
    "marketplace-ad-pros": {
      "httpUrl": "https://app.marketplaceadpros.com/mcp"
    }
  }
}

Google Antigravity

1. In the agent side panel, open the … menu, select MCP Servers, then Manage MCP Servers and View raw config.
2. Add the server to mcp_config.json and save:

{
  "mcpServers": {
    "marketplace-ad-pros": {
      "serverUrl": "https://app.marketplaceadpros.com/mcp"
    }
  }
}

3. Open settings, go to Customizations, and select Authenticate next to the server.
4. Sign in to Marketplace Ad Pros in your browser, copy the authorization code, paste it back into Antigravity, and select Submit.

API key instead of OAuth (Gemini CLI and Antigravity)

Create an MCP key on the Marketplace Ad Pros Integrations page and send it as a Bearer token. Use httpUrl in Gemini CLI or serverUrl in Antigravity:

{
  "mcpServers": {
    "marketplace-ad-pros": {
      "serverUrl": "https://app.marketplaceadpros.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_MCP_KEY"
      }
    }
  }
}

Example Prompts for Gemini

• "Which Sponsored Products search terms spent over $50 in the last 30 days with no orders?"
• "What was my TACoS last month for each marketplace?"
• "Which ASINs have less than 30 days of FBA inventory but rising ad spend?"
• "Compare Vendor Central ordered revenue with ad spend week over week for the last 8 weeks."
• "Write a script that emails me a weekly ACOS summary by campaign." (Gemini CLI or Antigravity)

Want more? Browse 50 Amazon Ads prompts for AI.