# io.github.ContentWriterco/ceny-nieruchomosci-mcp

> Polish real-estate deed prices and parcel checks: zoning plan, utilities, flood risk

- name: io.github.ContentWriterco/ceny-nieruchomosci-mcp
- version: 0.2.2
- connection class: R0 (autonomous)
- trust: 94/100
- quality: 82/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.ContentWriterco%2Fceny-nieruchomosci-mcp
- tools: https://api.protogrid.dev/v1/servers/io.github.ContentWriterco%2Fceny-nieruchomosci-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "ceny-nieruchomosci-mcp": {
      "type": "http",
      "url": "https://ceny.compabase.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 80
- drivers: +repository +namespace-matches-repo +reachable +uptime-100% +updated-22d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 82/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### 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: 88 (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`: 4 of 4 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: find_address (destructiveHint, idempotentHint); property_prices (destructiveHint, idempotentHint); parcel_report (destructiveHint, idempotentHint); …
- pass `tools.token_cost`: about 790 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

### 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
- pass `stability.new_links`: no tool change named a new site

### dependencies: 67 (weight 15)

- fail `deps.known_vulns`: 1 advisory to act on (malicious, or rated high or critical with a fix available): GHSA-mrhx-c7xc-m3w5 in zod@3.25.76 (direct, fixed in 4.6.6); 7 more of lower severity or without a fix
- pass `deps.mcp_sdk_version`: @modelcontextprotocol/sdk 1.32.2, no known advisory
- pass `deps.resolvable`: ceny-nieruchomosci-mcp@0.2.2 resolved: 99 packages

- tools: 4, about 790 tokens to load them all
- tool set hash: 96b6571bdce442725341b36a7ed82311
- tools last changed: 2026-10-22T22:24:50.950Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.ContentWriterco/ceny-nieruchomosci-mcp.svg)](https://protogrid.dev/servers/io.github.ContentWriterco/ceny-nieruchomosci-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-22 `parcel_report` added
  - Everything public about one land parcel (działka) in Poland: parcel id, area and land-use class from the land register (EGiB), local zoning plan (MPZP) and zoning symbol, utility networks on or near the plot (water, sewer, gas, power, heat, telecom – GESUT), flood hazard (ISOK maps), nature protection areas (GDOŚ) and plot prices nearby (RCN). query: parcel id "302109_4.0001.100", "obręb number" like "Bnin 100" or "obręb Bnin działka 100 gmina Kórnik", an address "Kórnik, Poznańska 1" (the parcel under the address point) or "lat,lon".

Full history: https://api.protogrid.dev/v1/servers/io.github.ContentWriterco%2Fceny-nieruchomosci-mcp/changes

## Dependencies

- npm ceny-nieruchomosci-mcp@0.2.2: resolved, 98 dependencies, MCP SDK @modelcontextprotocol/sdk 1.32.2
  - GHSA-mrhx-c7xc-m3w5 (high) in `` zod@3.25.76 ``, direct, fixed in `` 4.6.6 ``, advisory summary: "Zod can exhaust memory while validating oversized constrained collections" https://osv.dev/vulnerability/GHSA-mrhx-c7xc-m3w5
  - GHSA-jpvv-r467-5p4w (moderate) in `` @hono/node-server@2.1.5 ``, indirect, fixed in `` 2.1.6 ``, advisory summary: "@hono/node-server: Backslash in the request path is parsed as a path separator, bypassing path-based access control at a reverse proxy" https://osv.dev/vulnerability/GHSA-jpvv-r467-5p4w
  - GHSA-qv5m-9pm6-hqp3 (moderate) in `` @hono/node-server@2.1.5 ``, indirect, fixed in `` 2.1.6 ``, advisory summary: "@hono/node-server: Unhandled \`ECONNRESET\` on the socket during an asynchronous WebSocket upgrade crashes the process" https://osv.dev/vulnerability/GHSA-qv5m-9pm6-hqp3
  - GHSA-46wx-v44x-9hh2 (moderate) in `` hono@4.13.13 ``, indirect, fixed in `` 4.13.16 ``, advisory summary: "Hono: \`csrf()\` does not check requests sent by hyperlink auditing (\`text/ping\`)" https://osv.dev/vulnerability/GHSA-46wx-v44x-9hh2
  - GHSA-4h7h-rv7c-7m2v (moderate) in `` hono@4.13.13 ``, indirect, fixed in `` 4.13.16 ``, advisory summary: "Hono: \`validator('form')\` skips validation for \`multipart/form-data\` requests with extra parameters" https://osv.dev/vulnerability/GHSA-4h7h-rv7c-7m2v
  - GHSA-4m76-xfj5-7975 (moderate) in `` hono@4.13.13 ``, indirect, fixed in `` 4.13.16 ``, advisory summary: "Hono: \`mount()\` and \`app.mount()\` can forward a path that bypasses middleware scoped inside the mount prefix" https://osv.dev/vulnerability/GHSA-4m76-xfj5-7975
  - GHSA-h7mg-cq63-vhpq (moderate) in `` hono@4.13.13 ``, indirect, fixed in `` 4.13.16 ``, advisory summary: "Hono: RegExpRouter skips wildcard middleware for some route sets and for paths with an encoded line terminator" https://osv.dev/vulnerability/GHSA-h7mg-cq63-vhpq
  - GHSA-3gg2-335m-rxc6 (low) in `` hono@4.13.13 ``, indirect, fixed in `` 4.13.16 ``, advisory summary: "Hono: \`css\` helper does not escape a closing tag split between the template and an interpolated value, allowing HTML injection" https://osv.dev/vulnerability/GHSA-3gg2-335m-rxc6

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://ceny.compabase.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

- npm ceny-nieruchomosci-mcp@0.2.2

## Tools (4)

- `data_sources`: Where the data comes from, licence and caveats.
- `find_address`: Resolve a Polish address, street or town to coordinates using the official address register (GUGiK). Useful to check which place property_prices will use.
- `parcel_report`: Everything public about one land parcel (działka) in Poland: parcel id, area and land-use class from the land register (EGiB), local zoning plan (MPZP) and zoning symbol, utility networks on or near the plot (water, sewer, gas, power, heat, telecom – GESUT), flood hazard (ISOK maps), nature protection areas (GDOŚ) and plot prices nearby (RCN). query: parcel id "302109_4.0001.100", "obręb number" like "Bnin 100" or "obręb Bnin działka 100 gmina Kórnik", an address "Kórnik, Poznańska 1" (the parcel under the address point) or "lat,lon".
- `property_prices`: Actual sale prices of flats, houses or building plots near a place in Poland, from notarial deeds (official Rejestr Cen Nieruchomości). Returns median price per m², interquartile range, typical total price and area, breakdown by rooms, yearly trend and recent transactions. place: address "Poznań, Garbary 10", street "Kraków, Długa", town "Swarzędz" or "lat,lon".