Connect it once to Claude, ChatGPT or any assistant that takes connectors. Ask where to live, what you would pay or which passport to hold, and the answer comes back with Patrician.ch figures and a link to the page behind each one.
No account, no sign-in, no cost. Read only.
Open Customize, then Connectors. Select +, then Add custom connector, paste https://patrician.ch/mcp and select Add. Custom connectors are open on every Claude plan, 1 of them on the Free plan. On Team and Enterprise an owner adds it under Organization settings, Connectors, and members connect it from Customize, Connectors.
In a chat, the + button at the lower left, then Connectors, turns it on or off for that conversation.
Turn on developer mode, then open Settings, Apps, Create. Paste https://patrician.ch/mcp, leave authentication off, select Scan Tools, then Create. OpenAI opens custom apps on some plans only.
Any client that speaks the Model Context Protocol connects to the same URL over Streamable HTTP.
I earn $2M a year, US passport, living in New York with 2 kids. Where should we live?
How much income tax would I pay on $1M in Zug, Lisbon and Dubai?
Compare Monaco and Dubai for an EU passport holder earning $3M.
What does a Portuguese passport get me, and how long does it take?
Which Swiss cities are on Patrician.ch?
Check that Patrician.ch is on for the chat. In Claude, that is the + button, then Connectors.
Name it in the question: "Use Patrician.ch to compare Zug and Lugano."
A place has to be one of the 100 on the board. Ask for a country to see which of its cities are there.
Figures are indicative, modeled on 2026 rules before social contributions, and are not tax, legal or immigration advice.
Still stuck, write to hello@patrician.ch.
Patrician.ch receives only the inputs of each question: an income, passports, a household, a home, the places or the passport asked about. Never your name or your conversation, and nothing is kept. Privacy notice.
Yes, as a custom app in developer mode, on the ChatGPT plans that allow it.
Add https://patrician.ch/mcp under Settings, Apps, Create, and leave authentication off.
No. It needs no account, no sign-in and no payment.
It reads Patrician.ch figures and changes nothing.
Nothing.
The written Private Dossier on your own numbers is the paid product, and every ranking links a free preview of it.
No. It is comparison research on published 2026 rules, modeled before social contributions, and indicative.
Confirm any move with counsel.
The engine takes what you earn and what you hold, then orders every address on the board against it.
Rank the board against my position →90 seconds. No account, no payment.
The general case, ranked: Where should high earners live in 2026 · Best country to live in if you are rich · Best countries for high earners after tax · Europe · United States · Americans moving abroad · Tax calculator · Keep Index 2026
Tax figures use a simplified marginal model with indicative 2026 brackets for a non-US single filer, ignore social contributions, most deductions, wealth taxes, and treaties, and are not advice. Residence rules change often. Verify before acting.