Beta: for now Castor Cloud runs on our own servers in Switzerland and will move to larger infrastructure as the service grows.How the beta works

Assistant

How the assistant works

A personal assistant that knows your data – without handing it over.

  1. 1

    You ask

    In the chat in your cloud, in the app on your phone or – if you want – via Telegram.

  2. 2

    It searches in your cloud

    The assistant (Hermes Agent) runs inside your own encrypted cloud and searches your photos, documents, places and flights there.

  3. 3

    Only what is needed goes out

    Only your question and the few matching excerpts are sent to the language model – never your whole library.

  4. 4

    It remembers – with you

    Its memory (preferences, facts you taught it) is stored in your encrypted cloud, not at the AI provider.

What we guarantee

  • The language model only processes the request to write the answer.
  • Your data is never used to train AI models.
  • Providers that retain data are excluded – requests are not stored.
  • A hard monthly limit: you never pay more than your chosen AI credit.

Requests are routed via OpenRouter exclusively to AI providers with zero data retention and no training; providers from China are excluded. OpenRouter is a US company – for maximum sovereignty we will also offer processing exclusively in Switzerland.

Where you chat

  • In your cloudChat directly in the web app – private and entirely under our roof.
  • As an appInstall the web app on your phone's home screen – it works like a native app.
  • Telegram (optional)Convenient, but messages to bots are not end-to-end encrypted and pass through Telegram's servers. Off by default.

Monthly AI credit

A hard monthly limit for AI usage. When it is used up, the assistant pauses until next month – or you raise it. Passed on without mark-up and never discounted.

Ready for your own cloud?

Choose your services, see exactly what you pay – and your cloud is ready in minutes.

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