Grundheim Agent Gateway
A remote MCP server that gives AI assistants authoritative Swiss real-estate answers: official tax calculations for all 2,122 municipalities, bank-grade affordability checks, live mortgage rates, and municipality data — computed by the same engines that power grundheim.ch.
https://agent.grundheim.ch/mcpConnect
Claude — Settings → Connectors → Add custom connector → paste the endpoint URL.
ChatGPT — Settings → Connectors (developer mode) → New connector → paste the endpoint URL.
Claude Code / Gemini CLI
claude mcp add --transport http grundheim https://agent.grundheim.ch/mcp
gemini mcp add --transport http grundheim https://agent.grundheim.ch/mcpTools
| Tool | What it does | Safety |
|---|---|---|
calculate_swiss_property_tax |
Swiss income & wealth tax calculator | read-only |
calculate_affordability |
Swiss mortgage affordability (Tragbarkeit) stress test | read-only |
compare_rent_vs_buy |
Rent vs. buy comparison (Switzerland) | read-only |
calculate_pension_buyin |
Pension fund (2nd pillar) buy-in analysis | read-only |
get_mortgage_rates |
Swiss mortgage rates (live comparison) | read-only |
get_municipality_profile |
Swiss municipality profile | read-only |
get_market_price_context |
Swiss residential market price context | read-only |
generate_handover_link |
Grundheim handover link | creates link |
Try asking
"Can I afford a CHF 1.4M house in Meilen on a 220k income?" · "Was zahle ich in Zug an Steuern mit 180k Einkommen?" · "What are current SARON mortgage rates?" · "Lohnt sich ein PK-Einkauf von 50'000 mit 50?"
Data & privacy
All tools are anonymous and read-only. The gateway stores no personal data and no conversation content; calculations run in-process on official data (ESTV tariffs, cantonal statistics) and grundheim.ch's own market data. See the privacy policy and terms.