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Geomagnetic Kp Index Now & Last 24h (NOAA SWPC)

Planetary Kp index (geomagnetic activity) in 3-hour steps with storm level (G1-G5) and an aurora hint.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/space-weather-kp-index?compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"space-weather-kp-index"}

Parameters

None.

Example response (live, compact)

{
  "apiId": "space-weather-kp-index",
  "data_freshness": "cached",
  "data": {
    "latest": {
      "time_utc": "2026-10-28T06:00:00",
      "kp": 2.33,
      "level": "quiet"
    },
    "max_last_24h": 2.33,
    "last_24h": [
      {
        "time_utc": "2026-10-27T09:00:00",
        "kp": 1.33
      },
      {
        "time_utc": "2026-10-27T12:00:00",
        "kp": 2
      },
      {
        "time_utc": "2026-10-27T15:00:00",
        "kp": 1
      },
      {
        "time_utc": "2026-10-27T18:00:00",
        "kp": 2
      },
      {
        "time_utc": "2026-10-27T21:00:00",
        "kp": 1
      },
      {
        "time_utc": "2026-10-28T00:00:00",
        "kp": 2.33
      },
      {
        "time_utc": "2026-10-28T03:00:00",
        "kp": 1.67
      },
      {
        "time_utc": "2026-10-28T06:00:00",
        "kp": 2.33
      }
    ],
    "aurora_hint": "Aurora mostly limited to high latitudes"
  },
  "source": "NOAA Space Weather Prediction Center",
  "license": "U.S. Government Public Domain (NOAA Space Weather Prediction Center)"
}

Recorded history available: /api/v1/history/space-weather-kp-index

Source & license