Microsoft Copilot · Microsoft
Japanese law in Microsoft Copilot
In a firm or company on Microsoft 365, the way in is Copilot Studio: an agent there can use an MCP server as a tool, and the agent can then be published to Teams and to Microsoft 365 Copilot. japanlaw.org needs no key, so the connection is the URL and nothing else.
MCP server URL
Free. No sign-up, no key. Read-only.
https://japanlaw.org/mcpSet it up
- 1
In Copilot Studio, open your agent (or create one for Japanese law), go to Tools, choose Add a tool, then New tool, then Model Context Protocol.
- 2
Name it japanlaw.org, describe it as Japanese statutes in Japanese and English, and give the server URL:
Server URL (Streamable HTTP)https://japanlaw.org/mcp - 3
Set authentication to none and create it. The agent lists japanlaw.org's tools.
- 4
Test the agent, then publish it to Teams and Microsoft 365 Copilot for the people who should have it.
Before you start
- Needs a Copilot Studio licence and the right to build agents in your tenant; your Microsoft 365 administrator decides who may publish them.
- Copilot Studio takes Streamable HTTP servers, which this is.
Then ask
- Summarise the conditions under 労働基準法 第三十六条 for a valid overtime agreement, citing each paragraph with its japanlaw.org link.
- Which provisions of the Companies Act cite Article 362? List them with links.
- Compare the Ministry of Justice's English of 借地借家法 第二十八条 with the Japanese, and flag any paragraph that has only machine translation.
What Microsoft Copilot can do with it
search- Finds provisions, laws and defined terms by Japanese or English words, in every law held or in one, best match first. Each result has an id for fetch and the page's URL.
fetch- Reads what a search result's id names: a provision in Japanese with its English, each line marked as the Ministry's translation or machine translation — in force, or as it stood on a day; or a law's overview and outline.
list_laws- Every law japanlaw.org holds: title, number, kind, date of the text in force and how much of it has English.
get_law- One law: what it is for, who it binds and who it does not — its exceptions and how it is enforced on request — the texts of it held, earlier and to come, and its chapters, or what is under one of them.
get_provision- An article, paragraph or item by its citation — 第三十六条第二項, Article 36(2) or art-36/par-2 — in Japanese and English, with what it cites, the terms it defines and its URLs: in force, or as it stood on a day. Shown as a card where the app can draw one.
get_citing_provisions- Every provision in the collection that cites the one given, with links. No official source publishes this direction.
get_definitions- The words a law defines for itself — 労働者, 賃金 — each with the statute's own definition, its English and whose that is, a plain explanation, where it is defined and how far it reaches. Given a provision, the definitions that apply in it and the legal vocabulary it uses.
get_amendments- A law's amendments: the amending Act, its number, the day it takes effect and whether it is in force. Given one, every provision it changes, before and after, in Japanese and English, each English marked as the Ministry's or machine translation.
Two rules that keep the answer honest
Carry the attribution through
Every English paragraph is marked as the Ministry of Justice's translation or as this site's machine translation. Passing the second off as the first is the most damaging thing an answer built on this data can do. Keep the distinction in what you hand back.
Point back to the official original
Only the Japanese text as published by the government has legal effect; every English rendering, the Ministry of Justice's included, is a reference. Include the provision's link so the reader can check the original before acting, and do not present any of it as legal advice.
