IonoFlux API

A free REST API for space weather, ionosphere maps, observed propagation and HF path predictions. JSON everywhere, UTC timestamps, MHz frequencies.

Quick start

Every call needs an API key. Sign in, create a free key on your account page and send it in the X-API-Key header.

curl "https://ionoflux.runvia.app/v1/propagation/path?from=Seoul&to=New%20York&frequency=14.074" \
  -H "X-API-Key: ifx_your_key"

// JavaScript
const res = await fetch("https://ionoflux.runvia.app/v1/space-weather/current", {
  headers: { "X-API-Key": process.env.IONOFLUX_KEY },
});
const { solar, geomagnetic } = await res.json();

# Python
import requests
r = requests.get("https://ionoflux.runvia.app/v1/propagation/forecast",
                 params={"from": "PM37", "to": "FN20", "hours": 24},
                 headers={"X-API-Key": "ifx_your_key"})
for hour in r.json()["hours"]:
    print(hour["time"], hour["best_band"], hour["best_reliability"])

Main endpoints