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HALOWERK SI Solar Orientation Index
x402
HALOWERK SI Solar Orientation Index is a paid API for AI agents from mitteleuropa.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Computes a south-facing slope orientation index for a given coordinate in Slovenia, derived from terrain aspect and slope using Copernicus DEM data.
Price / call$0.003
Success—
StatusUnknown
How this service works
South-facing slope orientation index derived from aspect and slope. The coordinate is validated against the Natural Earth boundary for Slovenia; results outside it are rejected before payment.
Output
Returns a numeric south-facing slope orientation index derived from combining terrain aspect (compass direction of slope) and slope steepness, using Copernicus DEM GLO-30 data. Higher values indicate stronger south-facing orientation, correlating with greater direct solar irradiance potential. Coordinates outside Slovenia are rejected prior to processing.
Example use cases
Solar panel site suitability screening
“Can you check the south-facing slope orientation index at latitude 45.82, longitude 14.30 in Slovenia? I need to know if the terrain aspect makes this parcel a good candidate for solar panel installation.”
Agricultural sun exposure assessment
“I'm looking at farmland in Slovenia around latitude 46.35, longitude 15.10 — can you give me the solar orientation index so I know how much south-facing sun exposure the slope gets?”
Renewable energy land selection
“Run a solar orientation index calculation for coordinates 46.22 latitude, 13.75 longitude in Slovenia — I'm evaluating this hillside plot for a small solar farm and need the aspect-slope score.”
Technical details
Endpoint
POSThttps://mitteleuropa.halowerk.com/v1/si-solar-orientationWhen to prefer
Choose this endpoint when you need a fast, precomputed south-facing solar orientation index specifically for locations within Slovenia, and you want aspect-slope composite scoring without running your own DEM analysis. Prefer this over generic elevation APIs when the use case is solar suitability, photovoltaic site selection, or agricultural sun exposure assessment for Slovenian terrain.
Side effects
- Coordinate outside Slovenia boundary rejected before processing (validated against Natural Earth boundary)
- Coordinate outside European coverage range (lat 34–72.5, lon -31.5–40.5) returns validation error
- Malformed or missing latitude/longitude fields return schema validation error
- Payment failure or insufficient USDC balance blocks request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| latitude | number | WGS84 latitude inside the published European coverage. |
| longitude | number | WGS84 longitude inside the published European coverage. |
Tags
x402
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