Gratka MCP
REMOTE · MCP.WONDEL.AI
Polish property on Gratka.pl/Morizon.pl (one database): flats, houses, plots, premises, buy or rent.
Available components
Last scanned (3 hours ago)
Scores higher than 43% of remote servers
Reachable. Last reached 5 Nov 2026.
Category E-commerce
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability52
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 2607 tokens (~651/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (50% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 0
- Stability: unverified → 0.03 ▲ functional
- 2 Nov 26 56
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://mcp.wondel.ai/gratka/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=wondel.ai | CN=WE1,O=Google Trust Services,C=US | 23 Oct 2026 | 21 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | 5d95ed90e58a72d50e0abf92b4ea9de1 |
| SANs: wondel.ai, mcp.wondel.ai, *.mcp.wondel.ai | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.wondel.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 1814, 3799 | 8, 8 | Verified |
| wondel.ai. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.wondel.ai/gratka/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.wondel.ai/gratka/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
gratka_offer Get one Gratka.pl listing ~295
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.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The listing's id (e.g. '48184615') or its full https://gratka.pl link, as returned by gratka_search. |
| no_cache | boolean | – | Force a fresh fetch and bypass this server's result cache (5 min). Default false. |
No output schema declared.
No examples provided.
gratka_search Search Polish real-estate listings (Gratka.pl) ~950
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.
| Name | Type | Req | Description |
|---|---|---|---|
| area_max | number | – | Maximum area in m² (the plot's area for type 'plot'). |
| area_min | number | – | Minimum area in m² (the plot's area for type 'plot'). |
| location | string | – | Where, as a Polish place name, matched by the site's own location search: a city ('Kraków'), a district ('Warszawa Mokotów', 'Gdańsk Wrzeszcz'), a town or village, a county ('krakowski') or a whole v… |
| market | string | – | 'primary' = new build from a developer (rynek pierwotny), 'secondary' = resale (rynek wtórny). |
| no_cache | boolean | – | Force a fresh fetch and bypass this server's result cache (5 min). Default false. |
| page | integer | – | Results page, 1-based (35 listings per page). Default 1. |
| price_max | number | – | Maximum total price in PLN (monthly rent when transaction is 'rent'). |
| price_min | number | – | Minimum total price in PLN (monthly rent when transaction is 'rent'). |
| private_only | boolean | – | Only listings posted by private owners — no agencies or developers. Default false. |
| rooms_max | integer | – | Maximum number of rooms — not for types 'plot' and 'garage' (use min = max for exactly N). |
| rooms_min | integer | – | Minimum number of rooms — not for types 'plot' and 'garage'. |
| sort | string | – | Order: 'newest' (recently added), 'price_asc' / 'price_desc', 'price_per_m2_asc' / 'price_per_m2_desc', 'area_asc' / 'area_desc'. Default: the site's own order (recently refreshed). |
| transaction | string | yes | 'sale' = na sprzedaż (buying), 'rent' = na wynajem (renting; prices are monthly). |
| type | string | yes | Property type: 'flat' = mieszkanie, 'house' = dom, 'plot' = działka/grunt (land), 'commercial' = lokal użytkowy (any commercial premises), 'office' = biuro, 'garage' = garaż, 'room' = pokój (a room t… |
| Name | Type | Req | Description |
|---|---|---|---|
| count | number | yes | – |
| fetchedAt | string | yes | – |
| heading | – | – | – |
| listings | array | yes | – |
| note | – | – | – |
| page | number | yes | – |
| query | object | yes | – |
| resolved_location | – | – | – |
| search_url | string | yes | – |
| source | string | yes | – |
| total_count | – | – | – |
| total_pages | – | – | – |
No examples provided.
morizon_offer Get one Morizon.pl listing ~299
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.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The listing's id (e.g. 'mzn2047996834') or its full https://www.morizon.pl link, as returned by morizon_search. |
| no_cache | boolean | – | Force a fresh fetch and bypass this server's result cache (5 min). Default false. |
No output schema declared.
No examples provided.
morizon_search Search Polish real-estate listings (Morizon.pl) ~950
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.
| Name | Type | Req | Description |
|---|---|---|---|
| area_max | number | – | Maximum area in m² (the plot's area for type 'plot'). |
| area_min | number | – | Minimum area in m² (the plot's area for type 'plot'). |
| location | string | – | Where, as a Polish place name, matched by the site's own location search: a city ('Kraków'), a district ('Warszawa Mokotów', 'Gdańsk Wrzeszcz'), a town or village, a county ('krakowski') or a whole v… |
| market | string | – | 'primary' = new build from a developer (rynek pierwotny), 'secondary' = resale (rynek wtórny). |
| no_cache | boolean | – | Force a fresh fetch and bypass this server's result cache (5 min). Default false. |
| page | integer | – | Results page, 1-based (35 listings per page). Default 1. |
| price_max | number | – | Maximum total price in PLN (monthly rent when transaction is 'rent'). |
| price_min | number | – | Minimum total price in PLN (monthly rent when transaction is 'rent'). |
| private_only | boolean | – | Only listings posted by private owners — no agencies or developers. Default false. |
| rooms_max | integer | – | Maximum number of rooms — not for types 'plot' and 'garage' (use min = max for exactly N). |
| rooms_min | integer | – | Minimum number of rooms — not for types 'plot' and 'garage'. |
| sort | string | – | Order: 'newest' (recently added), 'price_asc' / 'price_desc', 'price_per_m2_asc' / 'price_per_m2_desc', 'area_asc' / 'area_desc'. Default: the site's own order (recently refreshed). |
| transaction | string | yes | 'sale' = na sprzedaż (buying), 'rent' = na wynajem (renting; prices are monthly). |
| type | string | yes | Property type: 'flat' = mieszkanie, 'house' = dom, 'plot' = działka/grunt (land), 'commercial' = lokal użytkowy (any commercial premises), 'office' = biuro, 'garage' = garaż, 'room' = pokój (a room t… |
| Name | Type | Req | Description |
|---|---|---|---|
| count | number | yes | – |
| fetchedAt | string | yes | – |
| heading | – | – | – |
| listings | array | yes | – |
| note | – | – | – |
| page | number | yes | – |
| query | object | yes | – |
| resolved_location | – | – | – |
| search_url | string | yes | – |
| source | string | yes | – |
| total_count | – | – | – |
| total_pages | – | – | – |
No examples provided.
How do I install the Gratka MCP server?
Gratka MCP is a hosted endpoint at https://mcp.wondel.ai/gratka/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · mcp.wondel.ai
claude mcp add --transport http ai-wondel-gratka 'https://mcp.wondel.ai/gratka/mcp'
What is the Gratka MCP server?
Gratka MCP is listed in the public MCP registry as ai.wondel/gratka. Polish property on Gratka.pl/Morizon.pl (one database): flats, houses, plots, premises, buy or rent. This page covers its hosted endpoint (https://mcp.wondel.ai/gratka/mcp).
Is the Gratka MCP server safe to use?
Gratka MCP scores 57 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Gratka MCP server expose?
Gratka MCP exposes 4 tools: gratka_search, gratka_offer, morizon_search, morizon_offer. Their descriptions and schemas cost roughly 2,494 tokens of context every time the server is loaded.
Does the Gratka MCP server require authentication?
No. We connected to Gratka MCP without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Gratka MCP server still maintained?
Gratka MCP is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.