Japan Laws Search

Search Japanese statutes via the e-Gov Law API — titles and IDs for your AI agent.

For compliance, research and legal-ops agents working on Japan. Free: top 3. Pro: larger search and detail.

Tools

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

Live free example

law_search {"keyword":"個人情報"}

{
  "total": 9566,
  "results": [
    {
      "law_id": "105DF0000000337",
      "law_num": "明治五年太政官布告第三百三十七号",
      "law_type": "CabinetOrder",
      "title": "明治五年太政官布告第三百三十七号（改暦ノ布告）"
    },
    {
      "law_id": "106DF0000000065",
      "law_num": "明治六年太政官布告第六十五号",
      "law_type": "Act",
      "title": "明治六年太政官布告第六十五号（絞罪器械図式）"
    },
    {
      "law_id": "108DF0000000054",
      "law_num": "明治八年太政官布告第五十四号",
      "law_type": "CabinetOrder",
      "title": "明治八年太政官布告第五十四号（勲章制定ノ件）"
    }
  ],
  "pro": "Larger result sets and law detail by id: https://jp-laws-search-mcp.donniertf.workers.dev/buy",
  "disclaimer": "Japanese law search via e-Gov Law API. Returns metadata and IDs; not a substitute for legal counsel."
}

Connect (MCP)

Add https://jp-laws-search-mcp.donniertf.workers.dev/mcp to Claude, Cursor or any MCP client (Streamable HTTP, no login for the free tier). Subscribers pass access_token or Authorization: Bearer.

Important

Japanese law search via e-Gov Law API. Returns metadata and IDs; not a substitute for legal counsel.

Data sources & licences

• e-Gov Law API (https://laws.e-gov.go.jp/)

For AI agents

llms.txt · server card · pricing.json · POST /checkout → checkout URL · GET /token?session_id= → access token.

More Japan data MCPs

Save with Japan bundles: jp-mcp-bundles · GitHub hub.

Contact & cancelling

Questions, refunds or cancelling: dmorrisonwebdesign@gmail.com. Run by Donnie Morrison, UK. Payments by Stripe; we never see card details.