# Japan Public Data (法人番号・登録支援機関・官公需入札)

> Japan public data: corporate numbers, registered support organizations, government bid notices.

- name: io.github.takaratomita/mcp-tools
- version: 0.1.0
- connection class: R0 (autonomous)
- trust: 97/100
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.takaratomita%2Fmcp-tools
- tools: https://api.protogrid.dev/v1/servers/io.github.takaratomita%2Fmcp-tools/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "mcp-tools": {
      "type": "http",
      "url": "https://mcp-tools.takara0408103123.workers.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 99
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-97% +updated-16d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 786 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 3 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 3, about 786 tokens to load them all
- tool set hash: 7d606aa7c5ef4a96361ff439805382f3
- tools last changed: 2026-10-22T09:24:53.758Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.takaratomita/mcp-tools.svg)](https://protogrid.dev/servers/io.github.takaratomita/mcp-tools)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-22 `search_local_govt_bids` changed (annotations)
- 2026-10-22 `search_support_orgs` changed (annotations)
- 2026-10-22 `lookup_corporate_number` changed (annotations)

Full history: https://api.protogrid.dev/v1/servers/io.github.takaratomita%2Fmcp-tools/changes

## Remotes

- https://mcp-tools.takara0408103123.workers.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.9677419)

## Packages

_none_

## Tools (3)

- `lookup_corporate_number`: Look up Japanese companies in the National Tax Agency Corporate Number Publication Site. Search by 13-digit corporate number, or by company name. Returns name, address and status. 国税庁 法人番号公表サイトから、法人番号（13桁）または法人名で法人情報（名称・所在地・閉鎖有無）を検索します。
- `search_local_govt_bids`: Search bid and tender notices from Japanese local governments and national agencies via the KKJ (官公需情報ポータルサイト) search API by the Small and Medium Enterprise Agency. Filter by keywords (AND), prefecture, issuing organization and notice date. Returns title, organization, dates and the notice URL. 官公需情報ポータルサイトの検索APIで、自治体・国の機関の入札・公募情報をキーワード・都道府県・機関名・公告日で検索します。
- `search_support_orgs`: Search the Immigration Services Agency of Japan registry of Registered Support Organizations for Specified Skilled Workers. Filter by name, location (prefecture/city in head office or support office address) and supported language. Organizations that reported suspension are excluded unless includeSuspended is true. 出入国在留管理庁「登録支援機関登録簿」から、特定技能外国人の登録支援機関を名称・所在地・対応言語で検索します（同梱データ・基準日あり）。