# Space Weather Aurora Chance

> Space Weather Aurora Chance is a paid API for AI agents from space-weather.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Returns the probability of seeing aurora borealis/australis at a given latitude and longitude right now, using NOAA's OVATION model and the current Kp index.

## Facts

- Endpoint: GET https://space-weather.x402tookit.com/aurora-chance?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/space-weather-aurora-chance-ff7675dd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pbdhn_rFuPlKgIor7QK4o

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability space-weather-aurora-chance-ff7675dd
```

Example prompt: What are the chances of seeing the northern lights right now at latitude 65.0, longitude -18.0? Give me the NOAA OVATION aurora probability and current Kp index.

## When to prefer this

Use this endpoint when you need a real-time, location-specific aurora probability derived from NOAA's OVATION model with an accompanying Kp index — rather than a general geomagnetic storm forecast or a multi-day outlook. It is ideal when you have a precise latitude/longitude and want an immediate go/no-go verdict for aurora viewing at that exact spot.

## Known failure modes

- Missing lat/lon query parameters returns a validation error
- Coordinates out of range (-90 to 90 lat, -180 to 180 lon) may return an error or null results
- NOAA OVATION model data temporarily unavailable returns degraded=true with partial or null fields
- Network timeout or upstream NOAA API outage returns a service error
- Polar coordinates very close to the poles may have sparse grid cell coverage

## How this service works

Chance of seeing aurora at a latitude and longitude right now, from NOAA's OVATION model, with the Kp index.

## Output

Returns a JSON object containing the aurora probability as a percentage, a human-readable verdict (e.g. 'likely', 'possible', 'unlikely'), a summary explanation, the latest Kp index, the nearest OVATION model grid cell coordinates, thresholds for faint/possible/likely visibility, the data timestamp, source URL, and any degraded-data flags or disclaimers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "lat",
      "lon"
     ],
     "properties": {
      "lat": {
       "type": "number",
       "description": "Latitude, -90 to 90"
      },
      "lon": {
       "type": "number",
       "description": "Longitude, -180 to 180"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "lat": {
       "type": [
        "null",
        "number"
       ]
      },
      "lon": {
       "type": [
        "null",
        "number"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "gridCell": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "lat": {
         "type": [
          "null",
          "number"
         ]
        },
        "lon": {
         "type": [
          "null",
          "number"
         ]
        }
       }
      },
      "latestKp": {
       "type": [
        "null",
        "number"
       ]
      },
      "sourceUrl": {
       "type": [
        "null",
        "string"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "thresholds": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "fa
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/space-weather-aurora-chance-ff7675dd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from space-weather.x402tookit.com](https://www.zero.xyz/host/space-weather.x402tookit.com/llms.txt)