# Japan Company Leads Finder (remote · gbiz-leads-mcp.easakura.workers.dev)

B2B leads for Japan: search 1M+ companies by size, capital, location, subsidy history (gBizINFO).

- Trust score: 56/100 (low)
- Change this week: −1
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `gbiz-leads-mcp.easakura.workers.dev`: 62/100, [markdown](https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp.md), [page](https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp)
- remote · `gbiz-leads-mcp.easakura.workers.dev`: 56/100 (this document), [markdown](https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp-2.md), [page](https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp-2)

## Channel facts

- Endpoint: `https://gbiz-leads-mcp.easakura.workers.dev/sse`
- Transports: `sse`
- Auth: `none`
- Version: `1.0.0`

## 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**: 46/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 4 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS check failed: the endpoint is reachable over plaintext HTTP.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 40/100
  - Verified sse transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 74/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 552 tokens (~138/item across 4 items; 4 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**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 easakura-japan-company-leads-mcp https://gbiz-leads-mcp.easakura.workers.dev/sse
```

### Codex

```toml
[mcp_servers.easakura-japan-company-leads-mcp]
url = "https://gbiz-leads-mcp.easakura.workers.dev/sse"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "easakura-japan-company-leads-mcp": {
      "type": "remote",
      "url": "https://gbiz-leads-mcp.easakura.workers.dev/sse",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add easakura-japan-company-leads-mcp --url https://gbiz-leads-mcp.easakura.workers.dev/sse --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  easakura-japan-company-leads-mcp:
    url: "https://gbiz-leads-mcp.easakura.workers.dev/sse"
```

### Other

```json
{
  "mcpServers": {
    "easakura-japan-company-leads-mcp": {
      "type": "http",
      "url": "https://gbiz-leads-mcp.easakura.workers.dev/sse"
    }
  }
}
```

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 56, +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 55, −4)

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

### 2026-07-30 (score 59, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-29 (score 58, +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.

### 2026-07-27 (score 57, +1)

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

### 2026-07-26 (score 56)

First indexed and scored.

## MCP tools (4)

### `search_companies` (~297 tokens)

日本企業をリード条件で検索

日本の法人データベース（経産省gBizINFO、約100万社超の活動情報）から営業リード候補を検索する。都道府県・従業員数・資本金・売上・設立年・補助金受給歴の有無で絞り込める。結果のcorporate_number（法人番号）をget_company_profile / get_company_subsidiesに渡すと詳細が取れる。

Input parameters:

- `capital_max_yen` (integer): 資本金の上限（円）
- `capital_min_yen` (integer): 資本金の下限（円）
- `employees_max` (integer): 従業員数の上限
- `employees_min` (integer): 従業員数の下限
- `founded_year` (integer): 設立年（例: 2015）
- `max_results` (integer): 最大件数（1〜50）
- `name` (string): 法人名（部分一致）
- `page` (integer): ページ番号（1〜10）
- `prefecture` (string): 都道府県名（例: 東京都）
- `with_subsidy_history` (boolean): trueで国の補助金受給歴がある企業に限定（予算獲得力・投資意欲のシグナル）

### `get_company_profile` (~86 tokens)

企業プロフィールを取得

法人番号を指定して企業の詳細プロフィールを取得する：代表者名・役職、従業員数、資本金、設立日、事業概要、会社URL、全省庁統一資格など。営業アプローチの下調べに使う。

Input parameters:

- `corporate_number` (string, required): 法人番号（13桁）

### `get_company_subsidies` (~91 tokens)

企業の補助金受給歴を取得

法人番号を指定して、その企業が国から受給した補助金の履歴を取得する。「補助金で設備投資した企業」「IT導入補助金の受給企業」など、予算と投資意欲のある企業の発掘に使える。

Input parameters:

- `corporate_number` (string, required): 法人番号（13桁）

### `get_company_procurement` (~78 tokens)

企業の官公庁取引実績を取得

法人番号を指定して、その企業の政府調達（官公庁との取引）実績を取得する。官公需に強い企業の発掘や、取引先の信用調査の参考に使える。

Input parameters:

- `corporate_number` (string, required): 法人番号（13桁）

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp-2#diagnostics

## Score history

- 2026-08-03: 56
- 2026-08-02: 56
- 2026-08-01: 55
- 2026-07-31: 55
- 2026-07-30: 59
- 2026-07-29: 58
- 2026-07-28: 57
- 2026-07-27: 57
- 2026-07-26: 56

## Links

- Remote endpoint: https://gbiz-leads-mcp.easakura.workers.dev/sse
- Repository: https://github.com/easakura/japan-company-leads-mcp
- Changelog RSS feed: https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp-2/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp-2/changelog.json
- HTML version of this page: https://verifymcp.io/servers/easakura-japan-company-leads-mcp/gbiz-leads-mcp-2