Shirabe Japan Data Hub MCP Server

by shirabe Your server? Claim it

answering

Shirabe Japan Data Hub is answering right now. Last checked 2 min ago. It exposes 5 tools.

Japan data tools for AI agents: calendar (rokuyo), address, name splitting, corporate number lookup

Uptime history 91 days of history · worst day 95%

91 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

183 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Shirabe Japan Data Hub 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 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add hub --transport http https://shirabe.dev/mcp

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

https://shirabe.dev/mcp

~/.codex/config.toml

[mcp_servers.hub]
url = "https://shirabe.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "hub": {
      "url": "https://shirabe.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "hub": {
      "type": "http",
      "url": "https://shirabe.dev/mcp"
    }
  }
}

Available tools 5

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

corporation

corporation_lookup

Look up a Japanese company by its 13-digit corporate number (法人番号) against the National Tax Agency (NTA) corporate-number registry. Returns the registered trade name, head-office address, change history and other public fields as JSON, plus mandatory NTA attribution. Useful when an AI agent already has a corporate number and needs canonical company facts (e.g. validating or enriching a B2B record). To go the other way (company name → number), use corporation_search. Source: Shirabe Corporation API.

corporation_search

Search the Japanese corporate-number registry (National Tax Agency) by company name and return matching companies, each with its 13-digit corporate number (法人番号), registered name and address, plus mandatory NTA attribution. Handles trade-name variants (㈱ / (株) / 株式会社) via normalization. Useful when an AI agent has a company name and needs to resolve its corporate number / canonical record. To go the other way (number → company), use corporation_lookup. Source: Shirabe Corporation API.

lookup

lookup_calendar

Look up Japanese calendar information for a given date: Rokuyo (six-day cycle such as Taian/Butsumetsu), Rekichu (almanac notes), Eto (sexagenary cycle), 24 solar terms, and purpose-based auspiciousness scores. Useful when an AI agent needs canonical Japanese calendar facts (e.g. choosing an auspicious date for a wedding or ceremony). Source: Shirabe Calendar API (shirabe.dev).

normalize

normalize_japanese_address

Normalize a free-form Japanese address against the official Address Base Registry (ABR, all 47 prefectures). Returns the canonical form, structured components (prefecture/city/town/block/building), postal code, WGS84 coordinates, match level (0-4) and confidence, plus mandatory CC BY 4.0 attribution. Useful when an AI agent must clean or de-duplicate Japanese B2B/customer records. Source: Shirabe Address API.

split

split_japanese_name

Split a Japanese personal name into family and given parts using IPAdic person-name POS tags (with whitespace/length heuristics as fallback). Returns family, given, and a confidence score (0-1; warning when low). Useful for normalizing name fields in HR, CRM, or form data. Source: Shirabe Text API.

Endpoints

URL	Transport	State	Latency	Checked
https://shirabe.dev/mcp	streamable-http	answering	121 ms	2 min ago

Alternatives to Shirabe Japan Data Hub

same job, measured the same way

Japan Utils

by vivek081166

Japan utilities for AI agents: era, romaji, postal codes, holidays, kana, name splitting.

118 installs/wk local only

Japan Business Tools

by ossalt

Japanese holidays, business days, eras, postal codes, addresses and corporate numbers.

13 tools answering

Japan Data MCP

by mameta29

30 tools for Japanese data: address, furigana, transit, Diet, holidays, weather, corporate registry

58 installs/wk local only

Dadata MCP

by theyahia

MCP server for DaData.ru — address validation, company lookup, geocoding. 31 tools.

54 installs/wk local only

mcp-rosreestr

by atomno-mcp

MCP server for Russian Rosreestr cadastral data: lookup by number, address or coordinates.

185 installs/wk local only

BatchData

by batchdataco

Real estate data for AI agents: property lookup, comps, search, skip tracing, phone/address checks

answering

SelfOperate Tools

by selfoperate

Pay-per-call company dossier, business lookup and website tools for AI agents (x402).

7 tools answering

PDF Tools

by pdfia

Free PDF tools for AI agents: merge, split, rotate, watermark, page numbers, metadata, flatten.

10 tools answering

Shirabe Japan Data Hub — questions

Answers built from our own checks of this server.

What can Shirabe Japan Data Hub do?

It exposes 5 tools, read directly from the server on our last check. Among them: corporation_lookup, corporation_search, lookup_calendar, normalize_japanese_address, split_japanese_name. 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 Shirabe Japan Data Hub 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 183 ms. The bar chart above shows every period we have measured.

How do I connect Shirabe Japan Data Hub?

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 Shirabe Japan Data Hub need an API key?

No. Shirabe Japan Data Hub completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Shirabe Japan Data Hub?

It answers our handshake in 183 ms on average, which is faster than 75% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.