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Switzerland · Liechtenstein

Your legal matter, handled.

Bring the letter or say what happened. Causius finds the rule and its source, keeps the deadline and drafts the reply. Nothing leaves without your yes.

No account needed to read a letter.

Example, inventedCH-ZH

Letter from the tax office

Dear Ms Erika Muster,

your 2025 assessment is enclosed. An objection may be lodged within 30 days.

  1. Hidden from the model[NAME-1]
  2. Deadline14 Novemberfrom: «within 30 days»
  3. Objection drafted, sources cited
  4. Send it?

Days of worry, or a few minutes.

Without

  1. Day 1A letter you half understand
  2. Day 3Forums, contradicting each other
  3. Day 8Waiting for an appointment
  4. Day 12Was the deadline yesterday?

With Causius

  1. Minute 1Photographed, your name hidden
  2. Minute 2The deadline, and the sentence it comes from
  3. Minute 5A reply drafted, every rule cited
  4. ThenYou decide: send, change, or ask a lawyer

The model never learns who you are.

How security works
  1. In your browser

    Erika Muster, Musterweg 1, 8000 Zürich

  2. What the model reads

    [NAME-1], [ADDRESS-1]

  3. Back with you

    Erika Muster, Musterweg 1, 8000 Zürich

Each matter is sealed with its own key. Pseudonyms are welcome.

Honest about what it is

General chatbotCausiusA lawyer
Finds the deadline in your letterSometimesWith its sourceYes
Cites the law it relies onRarely checkableEvery ruleYes
Keeps your name from the AINoYes—
Advises and represents youNoNo, and says soYes
To startFreeFreeBy the hour

Start from what happened

Where it works

  • Switzerland

    Federal and cantonal law · 26 cantons

    defrit

  • Liechtenstein

    Its own legal order

    de

Answers in your language; translates a letter into 19 languages.

When you need a person

  • Legal assistants help with forms, evidence and filing.
  • Licensed lawyers advise and represent, checked against the register, pseudonymous until you engage them.

Find a helperHelp others

Start with the letter in front of you.

Email and password, or a passkey. No real name needed.