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 Add, point to Custom and choose Web. Name the connector, paste https://patrician.ch/mcp, select Continue twice and then 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.
The Relocation Guide skill for Claude writes a guide you can hand a buyer who is moving to your market: the income tax in both places, the yearly and 10-year difference, and the patrician.ch page behind every figure. Property tax, insurance and anything else it cannot source becomes a list of who to ask, never a guess. It keeps to Fair Housing wording and ends with your brokerage line.
Free. In Claude, open Customize, then Skills, select +, then Create skill and Upload a skill, and choose the file. It needs the connector above and code execution on. Read the skill before you add it. With the connector on, the same guide is also 1 of its prompts, Relocation guide for a buyer, with no upload.
The same 5 answers over plain HTTP, for an agent or an app that does not take connectors. Send a household as JSON and the ranked places come back, each with the patrician.ch page behind its figures. No account, no key, read only.
60 requests a minute and 300 a day per address. Figures are indicative comparison research on 2026 rules, free to quote with a link to the page they come from. A key lifts the limits and adds the full tables: the Patrician.ch API.
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 (at) 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.
Yes. The same 5 answers run over plain HTTP at https://patrician.ch/api/agent/v1, with an OpenAPI 3.1 contract and no key.
Each operation takes a household or a place as JSON and answers with figures and the patrician.ch page behind them. It is read only and anonymous.
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.
Yes.
The free Relocation Guide skill for Claude writes a guide you can hand a buyer: the income tax in both places, the yearly and 10-year difference, and the patrician.ch page behind every figure. It needs the connector, no account and no payment.
The engine takes what you earn and what you hold, then orders every address on the board against it.
Find my best place to live →90 seconds. No account, no payment.
The general case, ranked
Summarize Patrician.ch with AI
Use Patrician.ch inside Claude or ChatGPT →The rules move. Be told when they do.
Sent when it earns the send, not on a schedule. Never shared, one tap to stop.
Income tax on the published 2026 rules. Social contributions, most deductions and treaties are not modeled. Figures are for a non-US single filer. Wealth tax, an exit and your passports are added when you run the engine on your own numbers. Not advice. Residence rules change often. Verify before acting.
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