Záboj: a native CarPlay voice-first MCP client for your car

prokopsim · reddit · 2026-08-30

The author's product Záboj is a voice-first MCP client running natively in the car via CarPlay. You talk while driving and it acts through MCP servers: Gmail, Calendar, Drive, Outlook, Slack, Pipedrive, Attio, Notion — or any server you add by URL.

Notable engineering details: tool calls run in the background while conversation continues, with interruption support; side-effectful calls (send email, write to CRM) require voice confirmation; OAuth tokens and API keys never touch the phone or car — servers attach account-side, encrypted at rest, EU-hosted, with the client as a thin audio pipe. Speech uses Gemini Live; a notable gotcha: the Live API rejects anyOf in tool schemas, which many MCP servers use. Free plan: 15 min/month, no card required.

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