Jma

live GovernmentWeather

JMA (Japan Meteorological Agency) MCP — keyless weather forecasts, warnings,

4 tools
0ms auth
free tier 50 calls/day

Tools

jma_resolve_area

Resolve a Japanese place name (English romaji or Japanese, e.g. "Tokyo", "Sapporo", "大阪") or a JMA area code to the JMA forecast OFFICE code used by jma_forecast and jma_warnings. Sourced from the Jap

No parameters required.

▶ Try it
jma_forecast

Weather forecast for a Japanese region from the Japan Meteorological Agency (JMA), covering a 3-day short-term outlook (weather, precipitation probability, temperature per sub-area) and a 7-day weekly

No parameters required.

▶ Try it
jma_warnings

Current weather warnings and advisories (警報・注意報) for a Japanese region, from the Japan Meteorological Agency (JMA). Returns the headline bulletin plus per-area status (issued / continuing / lifted / n

No parameters required.

▶ Try it
jma_earthquakes

Recent earthquakes reported by the Japan Meteorological Agency (JMA), including magnitude, maximum seismic intensity (震度, JMA's 10-step scale: 1-4, 5 Lower, 5 Upper, 6 Lower, 6 Upper, 7), epicenter (J

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/jma/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/jma/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"jma_resolve_area","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("jma_resolve_area", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("jma (japan meteorological agency) mcp — keyless weather forecasts, warnings,");