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Google offers three ways in, and they changed in 2026 (checked 2026-10-10):
  • Gemini app (gemini.google.com): custom apps, for personal Google accounts in the US.
  • Antigravity (CLI and IDE): the successor of Gemini CLI for personal Google accounts since June 2026.
  • Gemini CLI: still available with Gemini Code Assist Standard or Enterprise, or with a paid Gemini API key.

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Gemini app

1

Add a custom app

On gemini.google.com: Settings → Connected Apps, under Custom apps click Add a custom app and enter:
Click Next. Leave the advanced credentials empty; Gemini registers itself with AdLoop.
2

Authorize

AdLoop’s consent page opens. Sign in to your workspace and choose Allow access.
3

Use it

In a chat, type @, pick AdLoop, and ask: “Run the AdLoop health check.” Once set up on the web, it works in the Gemini mobile app too.
Google currently limits custom apps to personal accounts of adults in the US with Keep Activity turned on, and to English. Work and school accounts can’t add them yet.

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Antigravity

Antigravity reads ~/.gemini/config/mcp_config.json (per workspace: .agents/mcp_config.json). Note the key serverUrl; Antigravity doesn’t accept Gemini CLI’s httpUrl.
Then open the agent settings (⌘,) → Customizations and click Authenticate next to AdLoop. Approve on AdLoop’s consent page, copy the code it shows back into Antigravity and click Submit.
In the CLI (agy), /mcp opens the MCP manager with AdLoop’s status. If you used AdLoop in Gemini CLI before, agy plugin import gemini carries the server entry over.

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Gemini CLI

Then sign in from inside a session:
Your browser opens AdLoop’s consent page; choose Allow access. This needs a browser on the same machine. On a server or over SSH, use an API key instead:
Both write to ~/.gemini/settings.json, where the server sits under mcpServers with the key httpUrl. Check with gemini mcp list or /mcp. The AdLoop extension adds the server and AdLoop’s usage rules in one step:

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Notes

  • A connection made through OAuth uses your whole workspace. An API key can be restricted to read-only, single clients or chosen toolsets.
  • Every write goes through the preview and confirm flow, whichever Gemini product you use.
Your AI can read these docs too. Add https://docs.getadloop.com/mcp as an additional MCP server and your assistant can search this documentation while it works: setup answers, troubleshooting, and tool guidance on demand.