Gratka MCP
ai.wondel/gratkawondel.aistreamable-httpv1.0.0Scanned
Polish property on Gratka.pl/Morizon.pl (one database): flats, houses, plots, premises, buy or rent.
4 tools: 2 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
2 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.
4 tools
Changes things 2Claude Code: ask
gratka_offerFull details of one Gratka.pl listing: price and price per m² (PLN), area, rooms, floor, year built, property type, transaction and market, the address with district and coordinate…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 Gratka.pl listing: price and price per m² (PLN), area, rooms, floor, year built, property type, transaction and market, the address with district and coordinates, seller type and name (agency or developer; private owners are not named), the listing's detail tables as shown on the page (Polish labels and values: condition, rent and charges, building type, heating, ownership, available from…), amenities, the full description and photo URLs. No phone numbers. Get the id from gratka_search. Fetched live from Gratka.pl's own API (typically under 1 s). Result: { source, fetchedAt, listing: { source, id, url, title, active, property_type, transaction, market, kind, development, 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 }, note? } — `note` is set when the listing is no longer active.
morizon_offerFull details of one Morizon.pl listing: price and price per m² (PLN), area, rooms, floor, year built, property type, transaction and market, the address with district and coordinat…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 Morizon.pl listing: price and price per m² (PLN), area, rooms, floor, year built, property type, transaction and market, the address with district and coordinates, seller type and name (agency or developer; private owners are not named), the listing's detail tables as shown on the page (Polish labels and values: condition, rent and charges, building type, heating, ownership, available from…), amenities, the full description and photo URLs. No phone numbers. Get the id from morizon_search. Fetched live from Morizon.pl's own API (typically under 1 s). Result: { source, fetchedAt, listing: { source, id, url, title, active, property_type, transaction, market, kind, development, 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 }, note? } — `note` is set when the listing is no longer active.
Only reads 2Show 2 read-only tools
gratka_searchSearch property listings on Gratka.pl, a major Polish real-estate portal: flats, houses, plots, commercial premises, offices, garages and rooms, for sale or for rent, filtered by l…No findings
Why it is in this group
- The name "gratka_search" says "search": a word for reading.
Description, as the server wrote it Search property listings on Gratka.pl, a major Polish real-estate portal: flats, houses, plots, commercial premises, offices, garages and rooms, for sale or for rent, filtered by location (any Polish city, district, town, village, county or voivodeship), price, area, rooms, private sellers only and primary/secondary market, sorted like the site. Returns one results page (up to 35 listings) with each listing's price, price per m², area, rooms, floor, location, seller and link; pass a listing `id` to gratka_offer for the full details. Gratka.pl shows the same listings as Morizon.pl (one platform, different ids and links): search one portal, not both, and use gratka_offer only with Gratka.pl ids. Fetched live from Gratka.pl's own API (typically under 1 s). 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); `resolved_location` is the place `location` was matched to. Each listing: { source, id, url, title, category, kind, development, price, price_per_m2, currency, area_m2, rooms, floor, location, street, district, city, region, seller_type, seller_name, date_posted, refreshed_at, image, photo_count, description }. Prices are numbers in PLN (for rent, `price` is the monthly rent) and area is in m²; fields are null when the listing omits them. `kind` is 'new_development' for a developer's unit in a new project (named in `development`), else 'listing'; `seller_type` is agency | private | developer. An empty match answers count: 0 with a `note` saying why and what to change — that is a successful result, not an error.
morizon_searchSearch property listings on Morizon.pl, a major Polish real-estate portal: flats, houses, plots, commercial premises, offices, garages and rooms, for sale or for rent, filtered by …No findings
Why it is in this group
- The name "morizon_search" says "search": a word for reading.
Description, as the server wrote it Search property listings on Morizon.pl, a major Polish real-estate portal: flats, houses, plots, commercial premises, offices, garages and rooms, for sale or for rent, filtered by location (any Polish city, district, town, village, county or voivodeship), price, area, rooms, private sellers only and primary/secondary market, sorted like the site. Returns one results page (up to 35 listings) with each listing's price, price per m², area, rooms, floor, location, seller and link; pass a listing `id` to morizon_offer for the full details. Morizon.pl shows the same listings as Gratka.pl (one platform, different ids and links): search one portal, not both, and use morizon_offer only with Morizon.pl ids. Fetched live from Morizon.pl's own API (typically under 1 s). 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); `resolved_location` is the place `location` was matched to. Each listing: { source, id, url, title, category, kind, development, price, price_per_m2, currency, area_m2, rooms, floor, location, street, district, city, region, seller_type, seller_name, date_posted, refreshed_at, image, photo_count, description }. Prices are numbers in PLN (for rent, `price` is the monthly rent) and area is in m²; fields are null when the listing omits them. `kind` is 'new_development' for a developer's unit in a new project (named in `development`), else 'listing'; `seller_type` is agency | private | developer. 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 gratka https://mcp.wondel.ai/gratka/mcpclaude mcp add --transport http gratka https://mcp.wondel.ai/gratka/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__gratka__gratka_search",
"mcp__gratka__morizon_search"
],
"ask": [
"mcp__gratka__gratka_offer",
"mcp__gratka__morizon_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 gratka. 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/gratka/verify?hash=031f76a77f9ded4da89151d25d7fa309a940b5145377b55bb7a60224f642c20a" | jq -e '.changed == false'Pinned hash 031f76a77f9d, 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/gratka/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/ai.wondel/gratka)Source: MCP Registry. Synced Nov 2, 2026, 13:17 UTC.