Realestate

What Realestate MCP server does

The Realestate MCP server exposes two tools for researching reported property transactions in Japan. Its data comes from the Ministry of Land, Infrastructure, Transport and Tourism’s 不動産情報ライブラリ. The transaction tool covers residential and commercial deals, including agreed or contract prices available from 2021 onward.

Results can include transaction type, district, total trade price, property area, price per unit, building construction year, structure, and intended use. The available transaction history begins in the third quarter of 2005. Agreed-price coverage begins in the first quarter of 2021.

How it works

realestate_transactions accepts geographic and time filters. You can provide a Japanese prefecture by name or code, narrow the request with a municipality or station code, and select a year and quarter. This makes the tool suitable for questions about sale prices in places such as Tokyo, Osaka, or a particular Japanese ward.

realestate_municipalities returns the cities or wards in a selected prefecture together with their five-digit municipality codes. Use it before a transaction query when you know a place name but need the code required for a more specific search. The prefecture can be supplied by name or by its two-digit code from 01 through 47.

Setup and configuration

The Realestate MCP server is available through the Pipeworx gateway or as a local package. For a remote MCP connection, configure an MCP client with:

{
  "mcpServers": {
    "realestate": {
      "url": "https://gateway.pipeworx.io/realestate/mcp"
    }
  }
}

The scoped gateway endpoint lists the two Realestate tools along with shared Pipeworx meta-tools. The gateway’s ask_pipeworx tool can route plain-language questions to tools across the catalog. Alternatively, connect to https://gateway.pipeworx.io/mcp for the full gateway.

For a local stdio connection, run the package with npx -y @pipeworx/mcp-realestate and configure the client with that command and package argument. The local mode serves only this pack’s tools and does not add the gateway meta-tools. The HTTP tools can also be called directly through the gateway’s /v1/tools/realestate_transactions endpoint.

Tools and capabilities

• realestate_transactions: Retrieves reported Japanese property transactions, with filters for prefecture, municipality, station, year, and quarter.
• realestate_municipalities: Resolves the cities and wards within a prefecture and provides their five-digit municipality codes.
• Transaction records may expose property type, district, price, area, unit price, building age information, structure, and use.

Limitations and notes

The Realestate MCP server focuses on Japanese transaction data from the named MLIT source. Its transaction coverage starts at 2005-Q3, while agreed or contract prices are available from 2021-Q1. The gateway endpoint currently includes shared tools in addition to the pack’s tools; its initialize response is the authoritative source for the exact scope shown on a given day.