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Japan Laws Search MCP Server

answering

Japan Laws Search MCP is answering right now. Last checked 2 min ago. It exposes 3 tools. Last commit 14 Oct 2026.

Search Japanese statutes via the e-Gov Law API. Free law_search tool.

Uptime history 62 hours of history
62 hours agonow
100.0%
Uptime 24h
92 of 92 checks
3
Tools
read from the server
132 ms
Response time
average over 24h
0
Stars
last commit 14 Oct 2026

Nothing serious here today

Today is the operative word: we check Japan Laws Search 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 2 min ago.

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

law
law_detail
PRO. Fetch law detail/metadata by law_id from search results.
law_search
FREE. Search Japanese laws by keyword (Japanese or romanji terms as supported) — top 3.
law_search_pro
PRO. Up to 20 law search hits for a keyword.

Endpoints

URLTransportStateLatencyChecked
https://jp-laws-search-mcp.donniertf.workers.dev/mcp streamable-http answering 87 ms 2 min ago

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Japan Laws Search MCP — questions

Answers built from our own checks of this server.

What can Japan Laws Search MCP do?
It exposes 3 tools, read directly from the server on our last check. Among them: law_detail, law_search, law_search_pro. 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 Laws Search MCP 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 132 ms. The bar chart above shows every period we have measured.
How do I connect Japan Laws Search 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 Laws Search MCP need an API key?
No. Japan Laws Search MCP 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 Laws Search MCP?
It answers our handshake in 132 ms on average, which is faster than 86% 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.
Is Japan Laws Search MCP open source?
We cannot say either way: 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.