Nephyr Weather

Nephyr Weather by CLM Studios — detect trading edges in prediction market weather contracts using real meteorological data. Fetches 31-member GFS ensemble forecasts from NOAA, calculates model probabilities, and compares them against live Polymarket and Kalshi market prices to find mispriced contracts. Covers 12 global cities including NYC, Chicago, Miami, London, Seoul, and more. Built from the…

3 subscribers
6 endpoints
The in-depth APIMemo review for this API hasn't been published yet — the data below comes straight from the public marketplace listing.

Nephyr Weather endpoints

MethodEndpointDescription
utility
GET health_v1_health_get
/v1/health
Health check — confirms the service is alive and returns library version.
cities
GET list_cities_v1_cities_get
/v1/cities
List all supported cities with coordinates.
signals
POST get_signals_v1_signals_post
/v1/signals
Compute GFS ensemble weather signals for one or more cities. Fetches the latest 31-member GFS forecast from Open-Meteo and computes the probability of the daily high/low/rain…
POST get_forecast_v1_forecast_post
/v1/forecast
Fetch the raw 31-member GFS ensemble forecast for a city. Returns per-member daily high temperatures, low temperatures, and precipitation. Requires authentication via X-API-Key…
edge
POST get_edge_v1_edges_post
/v1/edges
Detect edge between GFS model probability and a market price. Fetches the live GFS ensemble, computes the signal, then compares it against the provided market price. Returns…
markets
GET list_markets_v1_markets_get
/v1/markets
List active weather markets. Queries Polymarket (always free) and optionally Kalshi (requires api key).

Nephyr Weather pricing

PlanPriceRate limitQuotas
BASIC Free
  • Requests: 10 / monthly
PRO Recommended $49 / month
  • Requests: 10,000 / monthly

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