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Vibesprings Solar Calculator & Radiation Forecast
x402
Vibesprings Solar Calculator & Radiation Forecast is a paid API for AI agents from vibesprings.net, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Returns daily solar cycle data (sunrise/sunset, twilights, solar noon, day length, UV index, shortwave radiation) for any global location, optionally up to 7 days ahead.
Price / call$0.002
Success—
StatusUnknown
How this service works
Astronomical solar calculator and solar radiation forecast database. Returns highly accurate daily solar cycles: sunrise/sunset times, astronomical/civil/nautical twilights, precise solar noon, day length, maximum UV index, and shortwave solar radiation levels (MJ/m²) for any location globally. Crucial for solar panel yield forecasting, photography timing, agriculture, and outdoor wellness tracking.
Output
Returns a structured daily breakdown per requested day including: sunrise and sunset times, solar noon, astronomical/civil/nautical twilight windows, total day length, maximum UV index, and shortwave solar radiation in MJ/m² — all calculated for the specified location and date range.
Example use cases
Solar panel efficiency forecasting
“I need you to fetch the shortwave radiation data for our rooftop installation in Sacramento for the next week — that'll help us predict daily power output and schedule maintenance windows during low-radiation days.”
Outdoor event photography scheduling
“Can you grab the golden hour and twilight windows for Barcelona on August 12th? I want to know exactly when we have the best natural light for our shoot and when we need to wrap up.”
Agricultural crop light planning
“Pull the sunrise, sunset, and total day length for our fields in Iowa for the next 10 days — we're optimizing grow light schedules and need to know the exact natural light windows for each date.”
Technical details
Endpoint
GEThttps://vibesprings.net/api/solarWhen to prefer
Use this endpoint when you need precise astronomical solar timing data combined with radiation/UV forecasting for a specific location. Ideal for solar panel yield prediction, agriculture light planning, photography golden-hour scheduling, or outdoor activity UV tracking. Prefer over general weather endpoints when solar radiation (MJ/m²) and exact twilight phases are required rather than just basic cloud/temperature forecasts.
Side effects
- Invalid or unrecognized location string — returns error or empty result
- Date out of supported range — may return error
- days parameter outside 1-7 range — validation error
- Missing required location parameter — 400 bad request
- Network or payment authorization failure — 402 or 5xx response
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"date": "2024-01-15",
"days": 3,
"location": "London"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"data": [
{
"date": "2024-01-15",
"sunset_utc": "2024-01-15T16:21:50+00:00",
"sunrise_utc": "2024-01-15T07:57:37+00:00",
"solar_noon_utc": "2024-01-15T12:09:44+00:00",
"civil_twilight_end": "2024-01-15T16:58:17+00:00",
"day_length_seconds": 30253,
"civil_twilight_begin": "2024-01-15T07:21:10+00:00",
"day_length_formatted": "8h 24m",
"nautical_twilight_end": "2024-01-15T17:40:11+00:00",
"nautical_twilight_begin": "2024-01-15T06:39:16+00:00",
"astronomical_twilight_end": "2024-01-15T18:20:11+00:00",
"astronomical_twilight_begin": "2024-01-15T05:59:16+00:00"
},
{
"date": "2024-01-16",
"sunset_utc": "2024-01-16T16:23:23+00:00",
"sunrise_utc": "2024-01-16T07:56:46+00:00",
"solar_noon_utc": "2024-01-16T12:10:05+00:00",
"civil_twilight_end": "2024-01-16T16:59:43+00:00",
"day_length_seconds": 30397,
"civil_twilight_begin": "2024-01-16T07:20:26+00:00",
"day_length_formatted": "8h 26m",
"nautical_twilight_end": "2024-01-16T17:41:30+00:00",
"nautical_twilight_begin": "2024-01-16T06:38:39+00:00",
"astronomical_twilight_end": "2024-01-16T18:21:27+00:00",
"astronomical_twilight_begin": "2024-01-16T05:58:42+00:00"
},
{
"date": "2024-01-17",
"sunset_utc": "2024-01-17T16:24:57+00:00",
"sunrise_utc": "2024-01-17T07:55:53+00:00",
"solar_noon_utc": "2024-01-17T12:10:25+00:00",
"civil_twilight_end": "2024-01-17T17:01:09+00:00",
"day_length_seconds": 30544,
"civil_twilight_begin": "2024-01-17T07:19:40+00:00",
"day_length_formatted": "8h 29m",
"nautical_twilight_end": "2024-01-17T17:42:51+00:00",
"nautical_twilight_begin": "2024-01-17T06:37:58+00:00",
"astronomical_twilight_end": "2024-01-17T18:22:45+00:00",
"astronomical_twilight_begin": "2024-01-17T05:58:05+00:00"
}
],
"latitude": 51.50853,
"location": "London, England, United Kingdom",
"timezone": "Europe/London",
"longitude": -0.12574,
"processingTime": "882ms"
}Schema · Response
{
"type": "json",
"example": {
"data": [
{
"date": "2024-06-21",
"sunset_utc": "2024-06-22T00:03:00Z",
"sunrise_utc": "2024-06-21T02:54:00Z",
"uv_index_max": 4.5,
"solar_noon_utc": "2024-06-21T13:28:00Z",
"day_length_seconds": 76140,
"shortwave_radiation_sum_mj_m2": 24.5
}
],
"latitude": 64.1,
"location": "Reykjavik, Iceland",
"timezone": "Atlantic/Reykjavik",
"longitude": -21.9
}
}Tags
x402
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