# `ai.wondel/nieruchomosci-online` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/ai.wondel/nieruchomosci-online
- JSON: https://anlyon.dev/api/v1/servers/ai.wondel/nieruchomosci-online
- Version: 1.0.0 (active)
- Publisher: ai.wondel (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-11-02T13:17:40.092Z

Title and description, as the publisher wrote them:

```untrusted-server-text
Nieruchomosci Online MCP
Polish property listings on nieruchomosci-online.pl: flats, houses, plots, premises to buy or rent.
```

Scanned 2026-11-02T13:18:11.627Z over streamable-http.

**2 tools: 1 change things and 1 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 1 | ask |
| Only reads | read | 1 | allow |

## Exfil surface

No private-data -> untrusted-input -> outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

| Tag | Meaning | Tools |
| --- | --- | --- |
| private-data | Reads files, mail, messages, databases, secrets, calendars or repositories. | none |
| untrusted-input | Brings in text someone else can write: web pages, inbound email, messages, issues and comments. | none |
| outbound | Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL. | none |

## Findings

No check matched anything in these tool definitions.


## Changes things (1)

Creates or changes something that can be changed back. Claude Code: ask.

### `nieruchomosci_online_offer`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Full details of one nieruchomosci-online.pl listing: price and price per m² (PLN), area, rooms, floor, year built, address with district and coordinates, seller type and name (agency, developer or private), the listing's detail table as shown on the page (Polish labels and values: rent and extra charges, deposit, building, heating, parking, source…), amenities, the full description and photo URLs. Get the id from nieruchomosci_online_search. Fetched live from nieruchomosci-online.pl (typically 1–3 s via direct fetch; up to ~20 s when it falls back to an unblocker). Result: { source, fetchedAt, listing: { id, url, title, property_type, transaction, kind, market, price, price_per_m2, currency, area_m2, rooms, floor, year_built, address, geo, seller_type, seller_name, agent_name, date_posted, updated, details, amenities, description, photos } }.
```

## Only reads (1)

Looks things up and changes nothing. Claude Code: allow.

### `nieruchomosci_online_search`

- The name "nieruchomosci_online_search" says "search": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Search property listings on nieruchomosci-online.pl, one of Poland's largest real-estate portals: flats, houses, plots, commercial premises and rooms, for sale or for rent, filtered by city/district or voivodeship, price, area, rooms and private-owner-only. Returns one results page (~40 listings) with each listing's price, price per m², area, rooms, floor, location, seller type and link; pass a listing `id` to nieruchomosci_online_offer for the full details. Fetched live from nieruchomosci-online.pl (typically 1–3 s via direct fetch; up to ~20 s when it falls back to an unblocker). Result shape: { source, fetchedAt, query, search_url, heading, resolved_location, total_count, page, total_pages, count, listings: [...], note? } — the list key is `listings`; `total_count` counts matches across all pages (use `page` for more). Each listing: { id, url, title, kind, market, price, price_per_m2, currency, area_m2, rooms, floor, location, street, city, region, seller_type, image, description }. Prices are numbers in PLN (for rent, `price` is the monthly rent) and area is in m²; fields are null when the page omits them. `kind` is 'new_development' for a developer's unit in a new project (primary market), else 'listing'; `seller_type` is agency | private | developer | company. An empty match answers count: 0 with a `note` saying why and what to change — that is a successful result, not an error.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `nieruchomosci-online`:

```json
{
  "permissions": {
    "allow": [
      "mcp__nieruchomosci-online__nieruchomosci_online_search"
    ],
    "ask": [
      "mcp__nieruchomosci-online__nieruchomosci_online_offer"
    ],
    "deny": []
  }
}
```