Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-in
Space-weather forecast — normalized one-to-three-day NOAA SWPC geomagnetic Kp-index periods labeled observed, estimated, or predicted.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
590 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://space-weather.use.x402atlas.com/forecast
| Category | Everything else |
|---|---|
| Provider host | space-weather.use.x402atlas.com |
| Networks | eip155:137, eip155:42161, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.005 | 590 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"days": 3
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"days": {
"default": 3,
"description": "Number of 24-hour periods from retrieval time",
"maximum": 3,
"minimum": 1,
"type": "integer"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"_atlas": {
"additionalProperties": false,
"description": "Atlas documentation and related-route metadata added after deployment",
"properties": {
"docs": {
"description": "Documentation URL for this bridge",
"format": "uri",
"maxLength": 512,
"type": "string"
},
"related": {
"description": "Bounded related Atlas routes",
"items": {
"additionalProperties": false,
"description": "One related Atlas route",
"properties": {
"bridge": {
"description": "Related bridge name",
"maxLength": 64,
"type": "string"
},
"docs": {
"description": "Related bridge documentation URL",
"format": "uri",
"maxLength": 512,
"type": "string"
},
"summary": {
"description": "Short capability summary",
"maxLength": 256,
"type": "string"
},
"url": {
"description": "Related route URL",
"format": "uri",
"maxLength": 512,
"type": "string"
}
},
"required": [
"bridge",
"url",
"docs",
"summary"
],
"type": "object"
},
"maxItems": 3,
"type": "array"
}
},
"required": [
"docs"
],
"type": "object"
},
"issued_at": {
"description": "Always null because this source publishes no issuance timestamp",
"format": "date-time",
"type": [
"string",
"null"
]
},
"operation": {
"const": "kp-forecast",
"description": "Stable route operation",
"type": "string"
},
"periods": {
"description": "Unique periods in ascending valid-time order; missing periods are not filled",
"items": {
"additionalProperties": false,
"properties": {
"kind": {
"description": "Exact normalized source observed classification",
"enum": [
"observed",
"estimated",
"predicted"
],
"type": "string"
},
"kp": {
"description": "Forecast planetary K index",
"maximum": 9,
"minimum": 0,
"type": "number"
},
"noaa_scale": {
"description": "Official NOAA scale value when supplied",
"type": [
"string",
"null"
]
},
"valid_at": {
"description": "Official period valid time",
"format": "date-time",
"type": "string"
}
},
"required": [
"valid_at",
"kp",
"noaa_scale",
"kind"
],
"type": "object"
},
"type": "array"
},
"query": {
"additionalProperties": false,
"description": "Normalized query identity after applying the default day window",
"properties": {
"days": {
"description": "Applied forecast-day window",
"maximum": 3,
"minimum": 1,
"type": "integer"
}
},
"required": [
"days"
],
"type": "object"
},
"schema_version": {
"const": "noaa-swpc-normalized-v1",
"description": "Pinned NOAA SWPC normalization contract",
"type": "string"
},
"source": {
"additionalProperties": false,
"description": "Official NOAA SWPC provenance for the served normalized snapshot",
"properties": {
"name": {
"description": "Official source organization",
"type":