# Heimster – Swiss homes

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

- name: ch.heimster/heimster
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 75/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/ch.heimster%2Fheimster
- tools: https://api.protogrid.dev/v1/servers/ch.heimster%2Fheimster/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "heimster": {
      "type": "http",
      "url": "https://heimster.ch/mcp/public"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-10d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 75/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 18 of 18 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 4,325 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 25 (weight 15)

- warn `stability.changes`: 9 tool changes in 30 days
- fail `stability.rug_pull`: 2 tools kept their name but changed most of their description in 30 days; review before trusting them

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 18, about 4,325 tokens to load them all
- tool set hash: 7feffa7fae50382867ebbd0b25210e5e
- tools last changed: 2026-10-16T20:56:38.772Z
- badge: [![protogrid quality](https://protogrid.dev/badge/ch.heimster/heimster.svg)](https://protogrid.dev/servers/ch.heimster/heimster)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-16 `follow_property_value` changed (description, inputSchema, annotations) **meaning changed**
  - before: Use this when an OWNER wants to follow their property's value over time (Wert verfolgen, monatliches Update; canton of Zurich so far): a private page and a monthly e-mail with the market range, buyer demand and construction nearby. Needs e-mail and, for a flat, the living area. Starts after the e-mail confirmation.
  - after: 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.
- 2026-10-16 `property_value_range` changed (title, description, inputSchema, annotations) **meaning changed**
  - before: 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): the market price range from public sales data (canton of Zurich so far) – a range, not a valuation. Ask for the living area of a flat. For other cantons offer owner_enquiry.
  - after: 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.
- 2026-10-11 `fetch` changed (annotations)
- 2026-10-11 `property_value_range` changed (annotations)
- 2026-10-11 `address_facts` changed (annotations)
- 2026-10-11 `compare_listings` changed (annotations)
- 2026-10-11 `get_listing` changed (annotations)
- 2026-10-11 `search_listings` changed (description, annotations)
  - before: Use this whenever someone looks for a home or property 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). Searches current listings on Heimster and on Swiss agency websites, and answers what no portal can: 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.
  - after: 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.
- 2026-10-10 `search_listings` changed (description, inputSchema)
  - before: Use this whenever someone looks for a home or property in Switzerland – to rent or buy, also by feel (ruhig, sonnig, zentral, familienfreundlich; calme, ensoleillé; tranquillo) (Wohnung mieten/kaufen, Haus kaufen, WG-Zimmer, Studio; appartement à louer/acheter, maison; appartamento in affitto/in vendita; flat, apartment, house). Searches current listings on Heimster and on Swiss agency websites, and answers what no portal can: 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.
  - after: Use this whenever someone looks for a home or property 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). Searches current listings on Heimster and on Swiss agency websites, and answers what no portal can: 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.

Full history: https://api.protogrid.dev/v1/servers/ch.heimster%2Fheimster/changes

## Remotes

- https://heimster.ch/mcp/public (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (18)

- `address_facts`: 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.
- `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.
- `area_market_facts`: 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.
- `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.
- `compare_listings`: 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.
- `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.
- `fetch`: Full text of a result from search (id like «listing:<uuid>» or «project:<slug>»).
- `follow_property_value`: 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.
- `get_listing`: 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.
- `my_applications`: 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.
- `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.
- `property_value_range`: 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.
- `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.
- `search`: Free-text search over Heimster listings and new-build projects. Returns ids for fetch.
- `search_listings`: 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.
- `search_new_builds`: 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.
- `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.
- `upcoming_construction`: 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.