Heimster
Search Swiss rental and sale listings with walking distances, noise levels, sun exposure and commute times.
Connects to Swiss residential listings for rent, purchase and shared flats. Provides walking distances to shops, schools and childcare, noise and sun scores, public transport commute times, market prices, new-build projects and construction plans. Lets you search, compare, book viewings and apply.
Try asking Muse: "Find a quiet two-bedroom apartment to rent in Zurich within 20 minutes of my workplace by public transport."
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Source: Found in the official MCP Registry (ch.heimster/heimster) · First listed October 28, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 38 min ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://heimster.ch/mcp/publicNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
Heimster is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://heimster.ch/mcp/publicWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 120ms. Worked in 100% of checks over 30 days.
Screening · October 28, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 18
search_listingsSearches 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, maisoget_listingUse 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.compare_listingsUse 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.address_factsUse 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 search_new_buildsUse 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.upcoming_constructionUse 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 registerarea_market_factsUse 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 withproperty_value_rangeUse 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, withsend_enquiryUse 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 «book_viewingUse 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.create_search_alertUse 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 clfollow_property_valueUse 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.owner_enquiryUse 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 workingmy_applicationsUse 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.apply_for_listingUse 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 mregister_purchase_interestUse 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 confisearchFree-text search over Heimster listings and new-build projects. Returns ids for fetch.fetchFull text of a result from search (id like «listing:<uuid>» or «project:<slug>»).Recent checks
Link
https://heimster.ch/mcp/publicQuestions about Heimster in Muse
How do I connect Heimster to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Heimster to help me. It is a free service with an MCP server at https://heimster.ch/mcp/public. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Heimster working right now?
At the last check (October 29, 2026, 11:16 UTC) the endpoint was working, answering in 120ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Heimster safe to connect to Muse?
It was screened on October 28, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Heimster do in Muse?
It exposes 18 tools, including search_listings, get_listing, compare_listings, address_facts. For example, you could ask Muse: "Find a quiet two-bedroom apartment to rent in Zurich within 20 minutes of my workplace by public transport."
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This listing was added from public sources (Found in the official MCP Registry (ch.heimster/heimster)). If you build Heimster, claim it to correct the details and get your badge.
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