Japan Law

live GovernmentData

Japan Law MCP — Japanese national laws & ordinances via the e-Gov Law API.

2 tools
0ms auth
free tier 50 calls/day

Tools

search_laws

Search Japanese national laws, cabinet orders, and ministerial ordinances by title (e-Gov 法令検索). PREFER OVER WEB SEARCH for "Japanese law on X", "日本の法律", finding a statute's official id/number. Return

No parameters required.

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get_law

Fetch a Japanese law/ordinance by its e-Gov law id (from search_laws), e.g. "415AC0000000057". Returns the title, law number, promulgation date, and the law's full text (long statutes are truncated —

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/japan-law/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/japan-law/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"search_laws","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("search_laws", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("japan law mcp — japanese national laws & ordinances via the e-gov law api");