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不動産競売 構造化データハブ — Japan real-estate auctions

Official registry Government and legal

Japanese court-run real-estate auctions (BIT). 5 tools, ~1,480 active listings. CC BY 4.0.

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http japan-real-estate-auctions 'https://keibai-hub.com/mcp-auctions'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "japan-real-estate-auctions": {
            "type": "http",
            "url": "https://keibai-hub.com/mcp-auctions"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. 不動産競売 構造化データハブ — Japan real-estate auctions MCP server
  2. Connect
  3. Tools (5)
  4. Data sources & license
  5. REST API (no MCP)
  6. Contact
  7. License

不動産競売 構造化データハブ — Japan real-estate auctions MCP server

Japanese court-run real-estate auction registry (BIT, bit.courts.go.jp) re-published as a structured Remote MCP server.

  • ~1,480 active auctions
  • 46 prefectures
  • 110+ district courts and branches
  • Updated twice daily (06:07 / 18:07 JST)

Connect

Remote MCP endpoint (Streamable HTTP):

https://keibai-hub.com/mcp-auctions
Claude Desktop / Cursor / Cline

Add to your mcp_servers config:

{
  "keibai-hub": {
    "url": "https://keibai-hub.com/mcp-auctions"
  }
}
Smithery one-click

Tools (5)

ToolDescription
search_auctionsSearch by keyword (Japanese FTS over title/address) / prefecture / court_code / property_type / price range / bid_period_only
get_auction_detailFetch one auction by case_id (e.g. bit_00000078922) — returns case_number, court, price, bid period, photos, etc.
list_upcoming_salesList auctions whose opening_date falls within the next N days (default 14, max 90)
get_court_directoryLook up a Japanese district court (本庁 or 支部) by code
find_practitioner_for_auctionReturns 司法書士 / 弁護士 / 不動産鑑定士 / 土地家屋調査士 federation directories for a given auction stage (post_acquisition / pre_bid / eviction / boundary_dispute)

Data sources & license

  • Source: BIT (https://www.bit.courts.go.jp/, 最高裁判所) under 民事執行法 64 条 5 項 公示原則
  • Structuring layer license: CC BY 4.0 — attribute the canonical _canonical URL of each record
  • This service is information-only and does not act as a paid intermediary
  • BIT URLs are session-bound; use the bit_lookup_hint field (case_number) to search BIT manually

REST API (no MCP)

If you prefer plain HTTP without MCP:

  • GET https://keibai-hub.com/api/auctions/search?prefecture=東京都&limit=20
  • GET https://keibai-hub.com/api/auctions/{case_id}
  • GET https://keibai-hub.com/api/auctions/{case_id}.md (Markdown variant, token-efficient)
  • GET https://keibai-hub.com/api/auctions/coverage
  • GET https://keibai-hub.com/api/auctions/upcoming?days_ahead=14
  • GET https://keibai-hub.com/.well-known/coverage-auctions.json
  • GET https://keibai-hub.com/llms.txt

Contact

Issues and feature requests via GitHub issues.

License

MIT (this repository's metadata only — the auction data carries CC BY 4.0).

Frequently asked questions

What is 不動産競売 構造化データハブ — Japan real-estate auctions?

Japanese court-run real-estate auctions (BIT). 5 tools, ~1,480 active listings. CC BY 4.0.

How do I install 不動産競売 構造化データハブ — Japan real-estate auctions?

It runs as a remote server. In Claude Code: claude mcp add --transport http japan-real-estate-auctions 'https://keibai-hub.com/mcp-auctions'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does 不動産競売 構造化データハブ — Japan real-estate auctions need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is 不動産競売 構造化データハブ — Japan real-estate auctions open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains 不動産競売 構造化データハブ — Japan real-estate auctions?

It is published by keibai-hub. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.