japan-weather-alert-mcp

Get real-time weather warnings, advisories, and special warnings across Japan from the Japan Meteorological Agency (気象庁 JMA).

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

  • Ping: Test connectivity to the Japan Weather Alert MCP server and confirm it is running.
  • Get Active Warnings: Get currently active weather warnings and advisories across Japan from the JMA (気象庁). Returns a list of areas with active warnings, the warning types, and issue time. Optionally f
  • Get Active Special Warnings: Get currently active special warnings (特別警報) across Japan from the JMA (気象庁). Special warnings are issued for extreme, life-threatening weather events such as record-break

What data it sees

Do you need an account

No: the server works without sign-in

Get real-time weather warnings, advisories, and special warnings across Japan from the Japan Meteorological Agency (気象庁 JMA). Check active alerts by prefecture, monitor special warnings, and track typhoon activity. No API key required. Data updates in real-time.

How to connect

How to connect japan-weather-alert-mcp to Claude

The server address to paste into Claude settings:

https://japan-weather-alert-mcp--kakar-satoshi.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect japan-weather-alert-mcp to ChatGPT

The server address to paste into ChatGPT settings:

https://japan-weather-alert-mcp--kakar-satoshi.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect japan-weather-alert-mcp to Cursor

The server address to paste into Cursor settings:

https://japan-weather-alert-mcp--kakar-satoshi.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (4)

Raw names from tools/list. Only developers need these.

pingTest connectivity to the Japan Weather Alert MCP server and confirm it is running.
get_active_warningsGet currently active weather warnings and advisories across Japan from the JMA (気象庁). Returns a list of areas with active warnings, the warning types, and issue time. Optionally filter by prefecture name (e.g. '東京都', '大阪府'). Data source: JMA 防災情報XML extra feed (no API key required).
get_active_special_warningsGet currently active special warnings (特別警報) across Japan from the JMA (気象庁). Special warnings are issued for extreme, life-threatening weather events such as record-breaking heavy rain, high waves, storm surge, snowfall, or wind. Returns an empty list with a confirmation message when no special warnings are active. Data source: JMA 防災情報XML extra feed.
get_typhoon_infoGet information about currently active typhoons in the Western Pacific from the JMA (気象庁). Returns typhoon name, current position (latitude/longitude and descriptive location), central pressure, maximum wind speed, and movement direction/speed. Returns a clear message when no typhoons are currently active. Data source: JMA 防災情報XML regular feed (VPTW-series products).