# Somantic – German Real Estate Search

> Search German property listings and estimate what any German address is worth.

- name: net.somantic/immobiliensuche
- version: 1.1.0
- connection class: R0 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 89/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/net.somantic%2Fimmobiliensuche
- tools: https://api.protogrid.dev/v1/servers/net.somantic%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.somantic.net/api/mcp/",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
```

Placeholders to fill: `${X_API_KEY}`.

## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-17d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### 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: 86 (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`: 3 of 3 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: search_listings (idempotentHint); get_listing (idempotentHint); estimate_value (idempotentHint)
- pass `tools.token_cost`: about 1,951 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 1 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

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

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

- tools: 3, about 1,951 tokens to load them all
- tool set hash: 2885e051f4f122e5a995a65b6d77ff47
- tools last changed: 2026-11-06T00:32:56.687Z
- badge: [![protogrid quality](https://protogrid.dev/badge/net.somantic/immobiliensuche.svg)](https://protogrid.dev/servers/net.somantic/immobiliensuche)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-11-06 `search_listings` changed (inputSchema)

Full history: https://api.protogrid.dev/v1/servers/net.somantic%2Fimmobiliensuche/changes

## Remotes

- https://www.somantic.net/api/mcp/ (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (3)

- `estimate_value`: Estimate what a German address is worth to buy and to rent.

Works for any address, listed or not. The estimate comes from comparable
listings around it, so `confidence` and `sample_size` say how much to trust
it - a thin sample means a wide, weakly supported band.

Returns `estimate` (point values, ranges and €/m² for price and rent) and
`confidence`. A point estimate is absent when too few comparables back it;
the €/m² band and `sample_size` still say what was found. This is a model
output, not an appraisal, and no comparable listing is reproduced in it.
- `get_listing`: Details of one listing: facts, Somantic's valuation, and the link to the
original.

No description text: it is the advertiser's, at source_url. A withdrawn
(inactive) listing is not returned: the call fails with "No listing", since
the offer no longer exists.

`image_urls` is always empty: Somantic passes on no photos. They are the
advertiser's, at source_url.
- `search_listings`: Search current real-estate listings in Germany, newest first.

Returns listings with facts, Somantic's valuation (somantic_valuation_eur,
price_vs_valuation_pct: negative means priced below it) and source_url, the
original listing on the portal that carries the offer.

`last_seen` is when Somantic last confirmed the offer as online. Listings
no longer confirmed are usually removed from results after 3 days.

One offer is often advertised on several portals at once. Those copies are
collapsed to the newest, so a page can hold fewer than `per_page` listings
and `total` counts the copies rather than the offers.