Six are forecast-only; measured values come from the Tokyo site at Koishikawa Botanical Garden alone. That is a property of the source network, not of this server, but it decides which tool answers your question. Forecast data refreshes hourly and measurements on the hour, so a cached answer more than an hour old is worth re-fetching.
A WBGT server for Tokyo. WBGT is the heat-stress index that combines temperature, humidity and radiant heat, and it is the number Japanese guidance actually uses to decide whether outdoor activity is safe.
- `get_tokyo_wbgt_forecast` returns forecast values for one site — `tokyo`, `hachioji`, `fuchu`, `nerima`, `ome`, `ogochi` or `edogawa`
- `get_all_tokyo_locations` fetches the forecast for every site at once
- `get_tokyo_realtime_data` returns measured values for a given year and month, available for the Tokyo site only
- Every reading arrives with its danger band attached — below 21°C is safe, 21-25°C is caution, 25-28°C is warning, 28-31°C is severe warning, and 31°C or above means exercise should stop
The project tokyo-wbgt-mcp-server, version 1.0.0, built from source: `npm install`, `npm run build`, then point the client at `build/index.js` with node. Node.js 18+ and TypeScript 5+. No account and no key — the data is the Ministry of the Environment's public heatstroke-prevention feed.
Build from source — clone the repository and build it, then point your client at the binary