Nieruchomosci Online MCP
ai.wondel/nieruchomosci-onlinewondel.aistreamable-httpv1.0.0Scanned
Polish property listings on nieruchomosci-online.pl: flats, houses, plots, premises to buy or rent.
2 tools: 1 change things and 1 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
1 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
2 tools
Changes things 1Claude Code: ask
nieruchomosci_online_offerFull 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 (agen…No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it 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 1Show 1 read-only tool
nieruchomosci_online_searchSearch 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, filtere…No findings
Why it is in this group
- The name "nieruchomosci_online_search" says "search": a word for reading.
Description, as the server wrote it 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.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http nieruchomosci-online https://mcp.wondel.ai/nieruchomosci-online/mcpclaude mcp add --transport http nieruchomosci-online https://mcp.wondel.ai/nieruchomosci-online/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__nieruchomosci-online__nieruchomosci_online_search"
],
"ask": [
"mcp__nieruchomosci-online__nieruchomosci_online_offer"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as nieruchomosci-online. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/ai.wondel/nieruchomosci-online/verify?hash=5353eec5fc767ebfd6d2dff12c1408c79494292f3713f47d47c1c7971472f5ab" | jq -e '.changed == false'Pinned hash 5353eec5fc76, from Nov 2, 2026, 13:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/ai.wondel/nieruchomosci-online/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/ai.wondel/nieruchomosci-online)Source: MCP Registry. Synced Nov 2, 2026, 13:17 UTC.