{ "openapi": "3.0.1", "info": { "title": "Japan AMeDAS Weather Observations (JMA official data)", "description": "Unofficial tool reading Japan Meteorological Agency (JMA) AMeDAS open data: live surface observations (temperature, rain, wind, sunshine, humidity, snow) from ~1,300 stations, per-station time series, and the station directory, English-labelled. Public open data, no API key. 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