Google opens a preview of one MCP-based path for apps into Gemini and Search
Google's Connected Apps Platform preview lets developers plug an MCP server or Android AppFunctions into Gemini, Search, or both.
Google has opened a preview of its Connected Apps Platform, which lets outside developers bring their services into the Gemini app and Search through one integration, according to Google's October 28 post. If you already run an MCP server, this gives you a way to reuse it. Developers connect a cloud-hosted MCP server, or Android MCP via the AppFunctions APIs. They then register, test and submit the app in Google Connected Console, choosing before review whether it goes live in Search, Gemini or both. Once an app is live, the console shows traffic, latency and error rates. 9To5Google notes that, until now, building a Connected App meant working closely with Google.
Google's MCP server developer guide calls the remote server the recommended default path, covering Android, iOS and the web. The guide recommends:
- clear server instructions
- safety annotations such as
readOnlyHintanddestructiveHinton every tool - local testing with MCP Inspector (
npx @modelcontextprotocol/inspector) - deployment to a public HTTPS endpoint, then testing in Gemini Developer Mode before you register
The platform overview points to an OAuth 2.1 guide for authorizing Gemini to act on users' behalf. The Android path links a connected app to an existing Play app, and the Android docs say you can't change the connection type after creation.
Access is the open question. Google says it is opening access in phases and will add developers, markets and products over the coming months, but it doesn't say which. The overview describes self-service onboarding through the console while also asking developers to apply, so expect a gate. Google's announcement doesn't cover review criteria, review times, or any pricing or revenue terms. Users also have to add your app before they see it, Search Engine Roundtable notes.
Sources
- Build and manage Connected Apps in one place · Google
- Google adding more Connected Apps to Gemini & Search with new dev platform · 9To5Google
- Developers Can Now Build Apps For Google Search In The Connected Apps Platform · Search Engine Roundtable
- Create and manage Connected Apps using AppFunctions and Android MCP in Google Connected Console | AI | Android Developers · Android Developers
- Connected Apps Platform | Google for Developers · Google for Developers
- Connected Apps Platform MCP server developer guide | Google for Developers · Google for Developers