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

by takaratomita Your server? Claim it

answering

Japan Public Data (法人番号・登録支援機関・官公需入札) is answering right now. Last checked 3 min ago. It exposes 3 tools. Last commit 22 Oct 2026.

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

Uptime history 72 hours of history

72 hours agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

305 ms

Response time

average over 24h

Stars

last commit 22 Oct 2026

Nothing serious here today

Today is the operative word: we check Japan Public Data (法人番号・登録支援機関・官公需入札) every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp-tools --transport http https://mcp-tools.takara0408103123.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcp-tools.takara0408103123.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.mcp-tools]
url = "https://mcp-tools.takara0408103123.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-tools": {
      "url": "https://mcp-tools.takara0408103123.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

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

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

local

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。

lookup

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。

support

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）。

Endpoints

URL	Transport	State	Latency	Checked
https://mcp-tools.takara0408103123.workers.dev/mcp	streamable-http	answering	248 ms	3 min ago

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

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PNCP

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19 tools answering

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

Answers built from our own checks of this server.

What can Japan Public Data (法人番号・登録支援機関・官公需入札) do?

It exposes 3 tools, read directly from the server on our last check. Among them: lookup_corporate_number, search_local_govt_bids, search_support_orgs. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Japan Public Data (法人番号・登録支援機関・官公需入札) working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 305 ms. The bar chart above shows every period we have measured.

How do I connect Japan Public Data (法人番号・登録支援機関・官公需入札)?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Japan Public Data (法人番号・登録支援機関・官公需入札) need an API key?

No. Japan Public Data (法人番号・登録支援機関・官公需入札) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Japan Public Data (法人番号・登録支援機関・官公需入札)?

It answers our handshake in 305 ms on average, which is faster than 54% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Japan Public Data (法人番号・登録支援機関・官公需入札) open source?

The code is open source: it is published under the MIT licence, written in TypeScript, 0 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at mcp-tools.takara0408103123.workers.dev, which runs on its operator's own terms.