MBratkowski / deweloperuch-mcp

deweloperuch-mcp 
 Website ·
 Documentation in Polish , with a visual install guide
Ask an AI assistant about new-build apartments in Poland: asking prices with their history, real transaction prices and official statistics.
An unofficial MCP server and command-line tool over the public data of deweloperuch.pl: developers' asking prices (with price history), transaction prices from the Real Estate Price Register (RCN) and statistics of GUS and NBP. Thirteen read-only tools, usable from an MCP client such as Claude Desktop or Claude Code, or from the `deweloperuch` CLI.
> **Disclaimer.** This is an independent project. It is **not affiliated with, endorsed by or sponsored by** deweloperuch.pl, GUS, NBP or the Register's publishers. The authors of deweloperuch.pl have agreed to the project's use of their service; the client identifies itself as `deweloperuch-mcp/ ` with a link to this repository.
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> - It is **read-only**: it never creates or changes anything on the service.
> - It is a **polite client**: at most 1 request per second, one at a time, shared by all processes on your machine; responses are cached; after a 401, 403, 429 or a captcha/WAF challenge it stops sending requests until you clear the lock yourself.
> - **Please respect the service.** It is run by other people; ask narrow questions and do not build loops or bulk downloads on top of this tool.
> - Data accuracy is not guaranteed. Prices are asking or registered prices, not valuations or advice.
> - You are responsible for how you use the tool and the data, including the terms of the service.
## What you can ask
- *Buying a flat:* "Find flats of 40–55 m² in Kraków's Podgórze up to 800 000 PLN, cheapest per m² first." (The service has no filter by number of rooms; filter by area instead.)
- *Judging an offer's price:* "Is this offer a good deal? Show its price history, the lowest price of the last 30 and 90 days, and whether the reduction looks suspicious."
- *Checking a developer:* "What does this developer build, and how many offers are active in which cities?"
- *Market and transaction prices:* "How do asking prices in Gdańsk compare with registered transaction prices over the last quarters?"
- *Valuation:* "Roughly what is a 55 m² flat at this address worth, based on nearby transactions?"
- *Comparing cities:* "Rank cities by transaction price per m², and show wages and unemployment next to them."
## Install
Pick the first option that fits you; they go from no terminal to expert. Supported systems: macOS, Linux and Windows 10 (1903+) / 11 with a local NTFS cache directory.
**Windows is supported starting with 0.1.3**, including the PyPI package and `.mcpb` extension. Releases up to 0.1.2 support macOS and Linux only.
Prefer a visual walkthrough? The install guide on the project's website (in Polish) shows the installation step by step and has a prompt that lets an AI agent install it for you.
### 1. Claude Desktop, no terminal
1. Download `deweloperuch-mcp- .mcpb` from the late