Heimster – Swiss homes

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Swiss homes to rent or buy, with walking distances, noise, sun and commute times for any address.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Heimster – Swiss homes": {
      "url": "https://heimster.ch/mcp/public",
      "transport": "streamable-http"
    }
  }
}

Measured tools (18)

• search_listings read-only

  Searches homes and properties in Switzerland – to rent or buy, also by feel (ruhig, sonnig, lebendig/belebt, grün, zentral, familienfreundlich; calme, ensoleillé, animé; tranquillo, vivace) (Wohnung mieten/kaufen, Haus kaufen, WG-Zimmer, Studio; appartement à louer/acheter, maison; appartamento in affitto/in vendita; flat, apartment, house). Covers current listings on Heimster and on Swiss agency websites, with walking distance to supermarket, childcare (Kita, crèche), school, park, stop and train station; quiet locations (road/rail noise); sun score; and the door-to-door public-transport commute to the person's workplace (workplace + max_commute_min). Ask where they work when the commute matters. Filter by place, type, rooms, price and area; sort by newest or price.

  Parameters:

  • sort — string
  • green — boolean — Only green, family-friendly surroundings: parks & playgrounds within 500 m (grün, im Grünen, Natur, Spielplatz; verdure; verde).
  • limit — integer
  • place — string — Municipality, postal code or canton in Switzerland, e.g. «Winterthur», «8004», «ZH».
  • quiet — boolean — Only quiet locations: road/rail noise by day below 55 dB at the facade.
  • lively — boolean — Only lively locations: many restaurants & cafés within 500 m on foot (belebt, lebendig, urban, Ausgang; animé; vivace). Use for «vivid area», «lots of restaurants», «where things happen».
  • area_min — integer — Minimum living area in m².
  • category — string — rent (default), buy, shared_flat (WG room) or sublet.
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • new_build — boolean — Only units in new-build projects.
  • price_max — integer — CHF; per month for rent, total for buy.
  • price_min — integer — CHF; per month for rent, total for buy.
  • rooms_max — number
  • rooms_min — number — Swiss room count, e.g. 3.5
  • workplace — string — Where the user works or studies (address or place) – for the commute filter.
  • max_park_m — integer — Max distance (m) to a park.
  • max_stop_m — integer — Max distance (m) to a bus/tram stop.
  • max_school_m — integer — Max distance (m) to a school.
  • min_sun_score — integer — Minimum Heimster sun score (0–100, direct sun on the building/flat).
  • property_type — string
  • max_childcare_m — integer — Max distance (m) to childcare (Kita) or kindergarten.
  • max_commute_min — integer — Max door-to-door minutes by public transport to the workplace (default 30).
  • max_supermarket_m — integer — Max walking distance (m) to a supermarket.
  • max_train_station_m — integer — Max distance (m) to a train station.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• get_listing read-only

  Use this to show one listing in full (id from search_listings, a Heimster link, or «found:<id>» for agency-website listings): photos, floor plans, description, costs, location facts, open viewings with ids, and the link. Call it before booking a viewing or applying.

  Parameters:

  • id (required) — string — Listing id (UUID).
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• compare_listings read-only

  Use this when someone wants to compare two to four listings (vergleichen, comparer, confrontare): price, price per m², rooms, area, floor, availability, public transport, shops and schools nearby, sun score – side by side.

  Parameters:

  • ids (required) — array — Listing ids from search_listings.
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• address_facts read-only

  Use this for ANY Swiss address, even without a listing – «what is it like to live at …», «is it noisy», «schools/Kita/ÖV near …», «was gibt es rund um …», «quartier calme ?», «com'è la zona …»: the building (year, floors, flats, heating), public transport, everyday places within walking distance, road/rail noise, local prices and rents, construction nearby, and listings in or near the building.

  Parameters:

  • address (required) — string — Swiss street address, e.g. «Bahnhofstrasse 10, 8001 Zürich».
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• search_new_builds read-only

  Use this for new-build homes (Neubau, Erstbezug, Erstvermietung, neuf, nuova costruzione): developments with available units, prices from, rooms and move-in date. Filter by place, rent/sale, rooms and maximum price.

  Parameters:

  • type — string
  • limit — integer
  • place — string — Municipality, canton or project name.
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • price_max — integer — CHF; per month for rent, total for sale.
  • rooms_min — number

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• upcoming_construction read-only

  Use this when someone asks what is being built or planned in a Swiss municipality or canton (Was wird gebaut, Überbauung, Bauprojekte, nouveaux logements en construction, cantieri): approved and ongoing residential projects with at least 3 flats from the federal building register (GWR), with size and status.

  Parameters:

  • place (required) — string — Municipality (e.g. «Uster») or canton code (e.g. «ZH»).
  • limit — integer
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • min_dwellings — integer

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• area_market_facts read-only

  Use this for market figures of a Swiss municipality, Kreis or Quartier (Mietpreise, Quadratmeterpreise, Leerstand, Landpreise; prix au m², loyers, taux de vacance; prezzi, affitti, sfitto): condominium and house prices per m², rents per m², land prices and vacancy rate, each with year, area level and source.

  Parameters:

  • place (required) — string — E.g. «Zürich Oerlikon», «Kreis 6», «Winterthur».
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• property_value_range read-only

  Use this when an OWNER asks what their flat or house is worth (Was ist meine Wohnung wert, Marktwert, valeur de mon bien, quanto vale): returns the link to Heimster's free owner valuation for that address (all of Switzerland, about two minutes, value after a short SMS check, with a personal cockpit). Heimster gives no figure for a specific property here; for area prices use area_market_facts.

  Parameters:

  • address (required) — string
  • rooms — number
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • living_area_m2 — number — Optional – prefills the valuation.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• send_enquiry

  Use this when someone wants to contact the provider of a listing (anfragen, Kontakt aufnehmen, Besichtigung anfragen, contacter l'agence, contattare): sends the enquiry in their name. Needs their name, e-mail and a short message (phone optional). Works for Heimster listings and «found:<id>» agency-website listings (forwarded to the agency). If the person is signed in to Heimster it is sent at once; otherwise Heimster e-mails a confirmation link first.

  Parameters:

  • listing_id (required) — string
  • name (required) — string
  • email (required) — string
  • message (required) — string — The user's own words, 5–2000 characters.
  • phone — string
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.

  Hints: read-only no · destructive no · idempotent no · open-world yes

• book_viewing

  Use this to book a place at an open viewing (Besichtigung buchen, réserver une visite, prenotare una visita) – viewing ids come from get_listing. Needs name, e-mail and number of people. Signed in: booked at once; otherwise after the e-mail confirmation.

  Parameters:

  • listing_id (required) — string
  • viewing_id (required) — string
  • name (required) — string
  • email (required) — string
  • phone — string
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • party_size — integer

  Hints: read-only no · destructive no · idempotent no · open-world yes

• create_search_alert

  Use this when someone wants to be notified about new listings (Suchabo, Benachrichtigung, alerte, avviso): e-mails new matching listings for a place, type, rooms, price and area. Needs their e-mail (or a Heimster sign-in). Starts after the confirmation link; unsubscribe in one click.

  Parameters:

  • place (required) — string — Municipality, postal code or canton in Switzerland, e.g. «Winterthur», «8004», «ZH».
  • email (required) — string
  • area_min — integer
  • category — string
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • price_max — integer
  • rooms_min — number
  • property_type — string

  Hints: read-only no · destructive no · idempotent no · open-world yes

• follow_property_value read-only

  Use this when an OWNER wants to follow their property's value over time (Wert verfolgen, monatliches Update): returns the link to the free owner valuation – after it the owner follows the value monthly in their Heimster account.

  Parameters:

  • address (required) — string
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • living_area_m2 — number

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• owner_enquiry

  Use this when an OWNER anywhere in Switzerland wants to sell, let or value a property, or wants a broker (Haus/Wohnung verkaufen, vermieten, Makler gesucht, bewerten lassen; vendre, louer, agence immobilière; vendere, affittare): the Heimster team gets in touch within two working days and, if the owner wishes, connects an experienced local brokerage – nothing goes to a brokerage without their consent. Needs the address, the intent, name and e-mail (phone and timeframe optional). Signed in: sent at once; otherwise after the e-mail confirmation.

  Parameters:

  • address (required) — string
  • intent (required) — string
  • name (required) — string
  • email (required) — string
  • phone — string
  • message — string
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • timeframe — string — now = within 3 months, year = within 12 months

  Hints: read-only no · destructive no · idempotent no · open-world yes

• my_applications read-only

  Use this when someone asks about their own applications or purchase interests on Heimster (meine Bewerbungen, Stand meiner Bewerbung, mes candidatures): status and links. Call it directly – if the person is not signed in, the app shows the Heimster sign-in itself.

  Parameters:

  • language — string — Language of titles, descriptions and links (default de). Use the user's language.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• apply_for_listing

  Use this to apply for a RENTAL listing with the person's Heimster application profile (bewerben, sich bewerben, postuler, candidarsi). Call it directly once they confirm – if they are not signed in, the app shows the Heimster sign-in itself; if the profile or the phone check is missing, the result says how to complete it. Documents are never sent through the chat; they are shared on the Heimster application page afterwards.

  Parameters:

  • listing_id (required) — string
  • message — string — Short personal note to the provider (optional).
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.

  Hints: read-only no · destructive no · idempotent no · open-world yes

• register_purchase_interest

  Use this to register interest in a property FOR SALE with the agent (Kaufinteresse anmelden, kaufen möchten, intérêt d'achat, interesse all'acquisto). Optional: phone, a message and the financing status (unknown, self_funded, confirmed, approved). Call it directly once they confirm – if they are not signed in, the app shows the Heimster sign-in itself.

  Parameters:

  • listing_id (required) — string
  • phone — string
  • message — string
  • language — string — Language of titles, descriptions and links (default de). Use the user's language.
  • financing — string

  Hints: read-only no · destructive no · idempotent no · open-world yes

• search read-only

  Free-text search over Heimster listings and new-build projects. Returns ids for fetch.

  Parameters:

  • query (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• fetch read-only

  Full text of a result from search (id like «listing:<uuid>» or «project:<slug>»).

  Parameters:

  • id (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

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Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.