Google Home Adds MCP for Third-Party AI Agents — SkimNews
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- Google Home added Model Context Protocol (MCP) integration letting third-party AI agents — including Claude, Hermes, Open Claw, and Google's own Antigravity — access connected devices and event history, per Google Home & Nest group product manager Taylor Lehman.
- MCP-enabled capabilities go beyond simple commands: cross-camera analysis (e.g., reviewing what happened after a child got home), querying device-state history for things like laundry loads or lighting duration, voice responses through Nest speakers, and custom dashboard creation.
- Gemini for Home remains Google's own consumer assistant following the end of Google Assistant; MCP integration adds a parallel control layer rather than replacing it.
- Launch is limited to Google Home Premium Advanced subscribers in the U.S. at $20/month or $200/year, rolling out over coming weeks and requiring users to create and configure a Google Cloud project.
- Google enforces built-in safeguards including rate limits and a block on agents unlocking doors, though Lehman acknowledged that "unexpected or even undesired behavior" is possible depending on which agent is connected.
- Google simultaneously opened its Antigravity coding tool for developers to build custom smart home agents on top of Home device data, reinforcing a B2B2C strategy aimed at making Google the smart-home equivalent of cloud infrastructure.
- Home Assistant, the open-source platform, already shipped a comparable MCP integration that the article's author previously used with Claude to troubleshoot devices, design dashboards, and write automations from natural language.
Why it matters: Google is betting that owning the smart home's data and device-control layer matters more than owning the user-facing assistant — every third-party agent that plugs into Home MCP still routes through Google's infrastructure. For developers, the question is whether Google will finally stick with a smart home platform after shuttering Android @ Home, Weave, Project Brillo, Works with Nest, and Google Assistant.
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