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Japan Data MCP Server

by netlify-japan-data-mcp Your server? Claim it
answering

Japan Data MCP is answering right now. Last checked 5 min ago. It exposes 4 tools.

Japanese law, corporation & statistics data as MCP, normalized to English with source attribution.

Uptime history 87 days of history · worst day 0%
87 days agonow
100.0%
Uptime 24h
91 of 91 checks
4
Tools
read from the server
582 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Japan Data MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

run in your terminal
claude mcp add japan-data-mcp --transport http https://japan-data-mcp.netlify.app/mcp
Settings → Connectors → Add custom connector, then paste this address
https://japan-data-mcp.netlify.app/mcp
~/.codex/config.toml
[mcp_servers.japan-data-mcp]
url = "https://japan-data-mcp.netlify.app/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "japan-data-mcp": {
      "url": "https://japan-data-mcp.netlify.app/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "japan-data-mcp": {
      "type": "http",
      "url": "https://japan-data-mcp.netlify.app/mcp"
    }
  }
}

Available tools 4

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

corporation
search_corporation
Look up a Japanese corporation by partial name or 13-digit corporate number, returning English-keyed records (corporate number, name, address). Requires a free National Tax Agency application ID.
japanese
search_japanese_law
Search Japanese laws and regulations by keyword and return English-normalized metadata (law id, type, era, promulgation date, category) plus the matched Japanese text. No API key required. Japanese keywords match best; the underlying source is full-text Japanese.
law
get_law_text
Fetch the original Japanese text of a law by its law_id or revision_id (as returned by search_japanese_law). Optionally extract a single article. Returns the authentic Japanese legal text with English-normalized metadata and the required source attribution. No API key required. Typical flow: search_japanese_law -> get_law_text.
statistics
search_statistics
Search Japanese official statistics tables (e-Stat) by keyword and return English-keyed table metadata (id, title, organization, dates). Requires a free e-Stat application ID.

Endpoints

URLTransportStateLatencyChecked
https://japan-data-mcp.netlify.app/mcp streamable-http answering 1275 ms 5 min ago

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Japan Data MCP — questions

Answers built from our own checks of this server.

What can Japan Data MCP do?
It exposes 4 tools, read directly from the server on our last check. Among them: get_law_text, search_corporation, search_japanese_law, search_statistics. 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 Data MCP working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 582 ms. The bar chart above shows every period we have measured.
How do I connect Japan Data MCP?
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 Data MCP need an API key?
No. Japan Data MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Japan Data MCP?
It answers our handshake in 582 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.