Japan Law Search MCP (日本の法令検索)
Pricing
from $20.00 / 1,000 mcp tool calls
Japan Law Search MCP (日本の法令検索)
MCP server for searching all ~10,000 Japanese laws & regulations. Full-text search, table of contents, and article text from official e-Gov data.
Pricing
from $20.00 / 1,000 mcp tool calls
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Developer
Edward Asakura
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Japan Law Search MCP — 日本の法令検索
Give your AI agent authoritative access to all ~10,000 Japanese laws and regulations.
This MCP server searches and retrieves the full text of current Japanese legislation — acts, cabinet orders, and ministerial ordinances — from the official e-Gov Laws API (Government of Japan). Built for legal-tech, compliance, HR, and contract-review AI agents working with Japanese law.
Why this server?
Japanese statutes are published as deeply nested XML with kanji numerals, era-based dates, and no convenient full-text API surface for LLMs. This server turns that into three clean, token-efficient tools.
Tools
search_laws
Full-text search across the body text of every current law (or search by law title). Returns matched snippets, law categories, promulgation dates, and official links.
get_law_structure
Table of contents for any law: chapters, sections, and article headings. Long statutes (e.g. the Civil Code with 1,000+ articles) are automatically compressed to chapter level to save tokens.
get_law_article
Retrieve the exact text of any article. Accepts flexible references — 3, 第3条, 第三条の二, 3の2 — and normalizes kanji numerals automatically. Output preserves paragraph and item numbering as clean plain text.
Example queries your agent can now answer
- 「電子署名法で電子署名が有効とされる条件は？」→ finds Article 3 and quotes it verbatim
- "What does the Labor Standards Act say about overtime limits? Quote the exact article."
- 「個人情報保護法の目次を見せて、第三者提供に関する条文を特定して」
Data source & freshness
Official e-Gov Laws API v2 (Government of Japan), fetched live on every call — always the currently enforced revision, including amendments enforced this month.
Pricing
Pay per tool call. One search, one table of contents, or one article retrieval = one event. No subscription, no minimum.
日本語
日本の現行法令（約1万件）を全文検索し、条文を取得できるMCPサーバーです。巨大な法令XMLをAIが読みやすいテキストに整形し、「第三条の二」等の表記ゆらぎも自動吸収します。リーガルテック・コンプライアンス・労務系AIに最適です。
