{"service":"WeatherOracle","description":"GFS ensemble forecasts + Gumbel temperature probability for prediction markets","price":"$0.02 USDC per query (x402)","cities":["Atlanta","Boston","Chicago","Denver","Houston","Los Angeles","Miami","New York","Phoenix","Seattle"],"payment":"x402 enabled","endpoints":{"GET /forecast?city=Chicago&date=2026-04-26":"Full forecast (no threshold)","GET /forecast?city=Chicago&date=2026-04-26&threshold=73":"P(high > 73°F)","GET /forecast?city=Chicago&date=2026-04-26&threshold=73&direction=less":"P(high < 73°F)"},"discovery":{"input_schema":{"city":"City name or code (Chicago, NYC, LAX, etc.)","date":"YYYY-MM-DD (up to 14 days out)","threshold":"Temperature in °F (optional)","direction":"\"greater\" or \"less\" (default: greater)"},"output_schema":{"mean_high_f":"GFS ensemble mean daily high (°F)","std_high_f":"Ensemble spread / uncertainty (°F)","rain_probability":"0–1 probability of measurable rain","prob_exceeds":"0–1 Gumbel probability (only if threshold given)","confidence":"high | medium | low","ensemble_members":"Number of GFS ensemble members used","summary":"One-line human-readable result"}}}