# Objelio Immobiliensuche

> Search apartments, houses and plots for sale or rent in Germany, listed by real estate agents.

- name: de.objelio/immobiliensuche
- 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/de.objelio%2Fimmobiliensuche
- tools: https://api.protogrid.dev/v1/servers/de.objelio%2Fimmobiliensuche/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "immobiliensuche": {
      "type": "http",
      "url": "https://www.objelio.de/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-12d-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`: 7 of 7 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 3,533 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`: 14 tool changes in 30 days
- fail `stability.rug_pull`: 1 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: 7, about 3,533 tokens to load them all
- tool set hash: f1e9c4cea4b6120d642a39b6c348f87b
- tools last changed: 2026-11-07T01:42:58.382Z
- badge: [![protogrid quality](https://protogrid.dev/badge/de.objelio/immobiliensuche.svg)](https://protogrid.dev/servers/de.objelio/immobiliensuche)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-11-07 `get_search_alert_link` changed (inputSchema)
- 2026-11-07 `get_listing` changed (outputSchema)
- 2026-11-07 `search_listings` changed (inputSchema)
- 2026-11-06 `get_search_alert_link` changed (inputSchema)
- 2026-11-06 `get_listing` changed (outputSchema)
- 2026-11-06 `search_listings` changed (inputSchema)
- 2026-11-04 `calculate_affordable_price` changed (description)
  - before: Estimates which purchase price a user can afford from equity and the monthly loan rate, after purchase costs of the federal state. Ask the user for equity, monthly rate and, if known, interest rate and repayment; otherwise suggested values are used and marked. Returns a link to an Objelio search with this price as maximum. An estimate, not financing advice.
  - after: Use this when the user asks how expensive a property they can afford, e.g. "Wie viel Haus kann ich mir mit 80.000 € Eigenkapital und 1.500 € Rate leisten?". Estimates which purchase price a user can afford from equity and the monthly loan rate, after purchase costs of the federal state. Ask the user for equity, monthly rate and, if known, interest rate and repayment; otherwise suggested values are used and marked. Returns a link to an Objelio search with this price as maximum. An estimate, not financing advice.
- 2026-11-04 `calculate_purchase_costs` changed (description)
  - before: Estimates the additional costs of buying a property in Germany (Kaufnebenkosten): real estate transfer tax of the federal state, notary and land register as a usual range, and the buyer's commission. Pass a listing_id from search_listings to use its price, postal code and commission, or pass price and state. An estimate, not tax or legal advice.
  - after: Use this when the user asks what buying a property in Germany costs on top of the price, e.g. "Kaufnebenkosten für 300.000 € in Hamburg". Estimates the additional costs of buying a property in Germany (Kaufnebenkosten): real estate transfer tax of the federal state, notary and land register as a usual range, and the buyer's commission. Pass a listing_id from search_listings to use its price, postal code and commission, or pass price and state. An estimate, not tax or legal advice.
- 2026-11-04 `search_listings` changed (description)
  - before: Use this when the user wants to find apartments, houses or building plots in Germany, e.g. by city, district, price, living area, rooms or features. Searches published real estate listings on Objelio; not for properties outside Germany. Pass structured criteria (preferred) or the user's request as text. Free-text requests are processed by an AI service (Anthropic API) to extract search criteria; Objelio stores the request and the criteria without any link to a person. Returns up to 10 listings with price, area, rooms, a fit per criterion (erfuellt = met, abweichend = slightly outside, unbekannt = no information) and a link to the listing page where the user can contact the agent.
  - after: Use this when the user wants to buy an apartment, house or building plot in Germany, e.g. by city, district, price, living area, rooms or features. Typical requests: "Wohnung kaufen in Hamburg-Eimsbüttel", "Eigentumswohnung mit Balkon bis 300.000 €", "Haus mit Garten bei Paderborn", "Grundstück im Kreis Paderborn", "Kapitalanlage-Wohnung in Hamburg", "Doppelhaushälfte im Hamburger Umland", "buy a flat in Hamburg". Searches published listings for sale on Objelio; currently no rentals and nothing outside Germany. Pass structured criteria (preferred) or the user's request as text. Free-text requests are processed by an AI service (Anthropic API) to extract search criteria; Objelio stores the request and the criteria without any link to a person. Returns up to 10 listings with price, area, rooms, a fit per criterion (erfuellt = met, abweichend = slightly outside, unbekannt = no information) and a link to the listing page where the user can contact the agent.
- 2026-11-04 `explain_criteria` changed (description) **meaning changed**
  - before: Shows how Objelio understands a search request in words, as structured criteria the user can check and correct before searching. Does not search.
  - after: Use this when the user wants to check how a property search request is understood before searching. Shows the request as structured criteria the user can check and correct. The text is processed by an AI service (Anthropic API) to extract the criteria; Objelio does not link it to a person. Does not search.

Full history: https://api.protogrid.dev/v1/servers/de.objelio%2Fimmobiliensuche/changes

## Remotes

- https://www.objelio.de/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (7)

- `calculate_affordable_price`: Use this when the user asks how expensive a property they can afford, e.g. "Wie viel Haus kann ich mir mit 80.000 € Eigenkapital und 1.500 € Rate leisten?". Estimates which purchase price a user can afford from equity and the monthly loan rate, after purchase costs of the federal state. Ask the user for equity, monthly rate and, if known, interest rate and repayment; otherwise suggested values are used and marked. Returns a link to an Objelio search with this price as maximum. An estimate, not financing advice.
- `calculate_purchase_costs`: Use this when the user asks what buying a property in Germany costs on top of the price, e.g. "Kaufnebenkosten für 300.000 € in Hamburg". Estimates the additional costs of buying a property in Germany (Kaufnebenkosten): real estate transfer tax of the federal state, notary and land register as a usual range, and the buyer's commission. Pass a listing_id from search_listings to use its price, postal code and commission, or pass price and state. An estimate, not tax or legal advice.
- `compare_listings`: Compares two or three listings from search_listings side by side: price, price per square meter, estimated purchase costs, area, rooms, building, energy certificate, features and agent. Only stored data; missing information is "unbekannt". Returns a link to the same comparison on objelio.de, where the user can save the listings and contact the agents.
- `explain_criteria`: Use this when the user wants to check how a property search request is understood before searching. Shows the request as structured criteria the user can check and correct. The text is processed by an AI service (Anthropic API) to extract the criteria; Objelio does not link it to a person. Does not search.
- `get_listing`: Use this when the user asks about one listing from search_listings or compare_listings. Full published details of one listing: description, features, energy certificate, commission (Courtage), the offering agent and the link to the listing page.
- `get_search_alert_link`: Read-only. Returns a link to a page on objelio.de where the user can subscribe to e-mail alerts for these criteria: new matching listings and price reductions, at most one e-mail a day, unsubscribe with one click. Pass the same criteria as in search_listings (at least one, e.g. a location). The user enters the e-mail address on that page and confirms it by e-mail; do not ask for it in the chat. Nothing is saved until the user does so.
- `search_listings`: Use this when the user wants to buy an apartment, house or building plot in Germany, e.g. by city, district, price, living area, rooms or features. Typical requests: "Wohnung kaufen in Hamburg-Eimsbüttel", "Eigentumswohnung mit Balkon bis 300.000 €", "Haus mit Garten bei Paderborn", "Grundstück im Kreis Paderborn", "Kapitalanlage-Wohnung in Hamburg", "Doppelhaushälfte im Hamburger Umland", "buy a flat in Hamburg". Searches published listings for sale on Objelio; currently no rentals and nothing outside Germany. Pass structured criteria (preferred) or the user's request as text. Free-text requests are processed by an AI service (Anthropic API) to extract search criteria; Objelio stores the request and the criteria without any link to a person. Returns up to 10 listings with price, area, rooms, a fit per criterion (erfuellt = met, abweichend = slightly outside, unbekannt = no information) and a link to the listing page where the user can contact the agent.