# 不動産競売 構造化データハブ — Japan real-estate auctions (remote · keibai-hub.com)

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

- Trust score: 64/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `keibai-hub.com`: 64/100 (this document), [markdown](https://verifymcp.io/servers/keibai-hub-keibai-hub-mcp/mcp-auctions.md), [page](https://verifymcp.io/servers/keibai-hub-keibai-hub-mcp/mcp-auctions)

## Channel facts

- Endpoint: `https://keibai-hub.com/mcp-auctions`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS not yet verified: we couldn't determine whether a plaintext access path exists.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 55/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 863 tokens (~172/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 89/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 67% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http keibai-hub-keibai-hub-mcp https://keibai-hub.com/mcp-auctions
```

### Codex

```toml
[mcp_servers.keibai-hub-keibai-hub-mcp]
url = "https://keibai-hub.com/mcp-auctions"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "keibai-hub-keibai-hub-mcp": {
      "type": "remote",
      "url": "https://keibai-hub.com/mcp-auctions",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add keibai-hub-keibai-hub-mcp --url https://keibai-hub.com/mcp-auctions --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  keibai-hub-keibai-hub-mcp:
    url: "https://keibai-hub.com/mcp-auctions"
```

### Other

```json
{
  "mcpServers": {
    "keibai-hub-keibai-hub-mcp": {
      "type": "http",
      "url": "https://keibai-hub.com/mcp-auctions"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 63, +3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 60, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 60, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 59, +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.

### 2026-07-27 (score 58, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 58)

First indexed and scored.

## MCP tools (5)

### `search_auctions` (~243 tokens)

日本の不動産競売物件を検索 (BIT, bit.courts.go.jp 由来の構造化データ). Filters: keyword (Japanese FTS over title/address), prefecture, court_code, property_type (land/detached_house/apartment/other), price range, bid_period_only. Returns case_id, court, address, sale_base_price_jpy, bid_period, opening_date, photos.

Input parameters:

- `bid_period_only` (boolean): Only listings whose bid period intersects today
- `court_code` (string): 5-digit BIT court id (本庁=11, 支部=21,31,...) OR slug like "tokyo_main"
- `keyword` (string): Japanese keyword over title/address/structure
- `limit` (integer)
- `max_price_jpy` (integer)
- `min_price_jpy` (integer)
- `offset` (integer)
- `prefecture` (string): Prefecture in kanji, e.g. "東京都"
- `property_type` (string)
- `sort` (string)
- `status` (string): Default = active

### `get_auction_detail` (~113 tokens)

一件の競売物件の構造化データを取得. Fetch one auction by case_id (e.g. "bit_00000078922"). Returns case_number, court_code, property_type, sale_base_price_jpy, bid_floor_jpy (= base × 80%), deposit_jpy, bid_period, opening_date, address, photos, and _canonical (cite this).

Input parameters:

- `case_id` (string, required): Auction case id, e.g. "bit_00000078922"

### `list_upcoming_sales` (~81 tokens)

近日開札予定の競売物件を一覧取得. List auctions whose opening_date falls within the next N days (default 14, max 90). Sorted ascending. Useful for investment screening / calendar exports.

Input parameters:

- `days_ahead` (integer): Lookahead window, default 14
- `limit` (integer): Default 50

### `get_court_directory` (~75 tokens)

裁判所の管轄・連絡先情報を取得. Look up a Japanese district court (本庁 or 支部) by code.

Input parameters:

- `court_code` (string, required): Court slug (e.g. "tokyo_main") OR BIT 5-digit ID (e.g. "31111")

### `find_practitioner_for_auction` (~211 tokens)

落札・入札関連の士業 (司法書士・弁護士・不動産鑑定士・土地家屋調査士) を返す. Stages: post_acquisition (default — 落札後の所有権移転登記; 司法書士が法律上ほぼ必須), pre_bid (入札前の独立評価・権利確認), eviction (明渡し・強制執行), boundary_dispute (境界確定・分筆). Information-only — not a paid intermediary. Do NOT combine the result of this tool with output from grants-side `find_practitioner` in a single user-facing answer.

Input parameters:

- `case_id` (string, required): Auction case_id, e.g. "bit_00000078922"
- `prefecture` (string): Optional — prefecture for prefecture-chapter referral
- `stage` (string): Default = post_acquisition

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/keibai-hub-keibai-hub-mcp/mcp-auctions#diagnostics

## Score history

- 2026-08-03: 64
- 2026-08-02: 64
- 2026-08-01: 63
- 2026-07-31: 63
- 2026-07-30: 60
- 2026-07-29: 60
- 2026-07-28: 59
- 2026-07-27: 58
- 2026-07-26: 58

## Links

- Remote endpoint: https://keibai-hub.com/mcp-auctions
- Repository: https://github.com/keibai-hub/keibai-hub-mcp
- Changelog RSS feed: https://verifymcp.io/servers/keibai-hub-keibai-hub-mcp/mcp-auctions/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/keibai-hub-keibai-hub-mcp/mcp-auctions/changelog.json
- HTML version of this page: https://verifymcp.io/servers/keibai-hub-keibai-hub-mcp/mcp-auctions