GET /spaceweather/kp/history
Full time series of planetary Kp index readings collected continuously from NOAA SWPC. Filter with ?start and ?end. Valuable for aurora forecasters correlating past activity with sightings, space weather researchers studying storm distributions, and dashboards plotting geomagnetic trends over months or years.
start
optional
Start datetime
end
optional
End datetime
limit
optional
default: 500
Max rows (cap 10000)
| Name | Required | Default | Description |
|---|---|---|---|
start |
No | - | Start datetime |
end |
No | - | End datetime |
limit |
No | 500 | Max rows (cap 10000) |
curl "https://nordapi.ee/api/v1/spaceweather/kp/history?limit=500"
{
"count": 197,
"data": [
{
"kp_index": 0.33,
"time": "2026-04-13T18:00:00Z"
},
{
"kp_index": 0.67,
"time": "2026-04-13T21:00:00Z"
},
{
"kp_index": 2.0,
"time": "2026-04-14T00:00:00Z"
},
{
"kp_index": 0.33,
"time": "2026-04-14T03:00:00Z"
},
{
"kp_index": 0.33,
"time": "2026-04-14T06:00:00Z"
},
{
"kp_index": 1.33,
"time": "2026-04-14T09:00:00Z"
},
{
"kp_index": 1.0,
"time": "2026-04-14T12:00:00Z"
},
{
"kp_index": 1.33,
"time": "2026-04-14T15:00:00Z"
},
{
"kp_index": 0.33,
"time": "2026-04-14T18:00:00Z"
},
{
"kp_index": 0.33,
"time": "2026-04-14T21:00:00Z"
},
{
"kp_index": 0.67,
"time": "2026-04-15T00:00:00Z"
},
{
"kp_index": 1.33,
"time": "2026-04-15T03:00:00Z"
},
{
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{
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{
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},
{
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},
{
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},
{
"kp_index": 0.67,
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},
{
"kp_index": 1.0,
"time": "2026-04-16T03:00:00Z"
},
{
"kp_index": 1.0,
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},
{
"kp_index": 0.67,
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},
{
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},
{
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},
{
"kp_index": 2.33,
"time": "2026-05-26T00:00:00Z"
},
{
"kp_index": 1.33,
"time": "2026-05-26T03:00:00Z"
},
{
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},
{
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},
{
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},
{
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{
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{
"kp_index": 3.67,
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},
{
"kp_index": 2.33,
"time": "2026-05-27T00:00:00Z"
},
{
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{
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{
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{
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{
"kp_index": 3.33,
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},
{
"kp_index": 2.0,
"time": "2026-05-28T00:00:00Z"
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{
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{
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},
{
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},
{
"kp_index": 2.67,
"time": "2026-05-29T00:00:00Z"
},
{
"kp_index": 3.0,
"time": "2026-05-29T03:00:00Z"
},
{
"kp_index": 2.33,
"time": "2026-05-29T06:00:00Z"
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{
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"time": "2026-05-29T09:00:00Z"
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{
"kp_index": 3.0,
"time": "2026-05-29T12:00:00Z"
},
{
"kp_index": 1.33,
"time": "2026-06-08T15:00:00Z"
},
{
"kp_index": 1.33,
"time": "2026-06-08T18:00:00Z"
},
{
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"time": "2026-06-08T21:00:00Z"
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{
"kp_index": 2.0,
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{
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{
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{
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{
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"time": "2026-06-09T15:00:00Z"
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{
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{
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{
"kp_index": 1.33,
"time": "2026-06-10T18:00:00Z"
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{
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{
"kp_index": 1.33,
"time": "2026-06-11T00:00:00Z"
},
{
"kp_index": 2.33,
"time": "2026-06-11T03:00:00Z"
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"time": "2026-06-11T06:00:00Z"
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"time": "2026-06-11T09:00:00Z"
},
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"time": "2026-06-11T12:00:00Z"
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{
"kp_index": 2.33,
"time": "2026-06-11T15:00:00Z"
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{
"kp_index": 5.0,
"time": "2026-06-11T18:00:00Z"
},
{
"kp_index": 4.33,
"time": "2026-06-11T21:00:00Z"
},
{
"kp_index": 3.33,
"time": "2026-06-12T00:00:00Z"
},
{
"kp_index": 3.67,
"time": "2026-06-12T03:00:00Z"
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{
"kp_index": 3.67,
"time": "2026-06-12T06:00:00Z"
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{
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"time": "2026-06-12T09:00:00Z"
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{
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{
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"time": "2026-06-12T15:00:00Z"
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{
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{
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{
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}
],
"success": true
}