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HALOWERK Nordic Land – DK Surface Aspect
x402
HALOWERK Nordic Land – DK Surface Aspect is a paid API for AI agents from nordland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns the dominant surface aspect (circular slope direction, clockwise from north) for a given coordinate within Denmark, validated against the Natural Earth boundary.
Price / call$0.003
Success—
StatusUnknown
How this service works
Circular direction of the dominant surface gradient, clockwise from north. The coordinate is validated against the Natural Earth boundary for Denmark; results outside it are rejected before payment.
Output
Returns the dominant surface aspect as a circular direction in degrees (0–360), measured clockwise from north, representing the orientation of the steepest downslope gradient at the queried coordinate. Coordinates outside Denmark's Natural Earth boundary are rejected before any charge is applied.
Example use cases
Solar panel site orientation check
“For the land parcel at latitude 56.1, longitude 10.2 in Denmark, what direction does the surface slope face? I need to know the aspect angle clockwise from north to assess solar panel suitability.”
Agricultural field drainage planning
“Can you tell me the dominant slope direction at coordinates 55.4 latitude, 8.9 longitude in Denmark? I'm trying to figure out which way water would naturally drain across this field.”
Ecological habitat slope orientation
“I need the terrain aspect at latitude 55.65, longitude 12.05 in Denmark — specifically the clockwise bearing from north that the slope faces — for a habitat suitability model I'm building.”
Technical details
Endpoint
POSThttps://nordland.halowerk.com/v1/dk-aspectWhen to prefer
Choose this endpoint when you need terrain aspect (slope orientation) specifically for coordinates within Denmark, especially when boundary validation before billing is important. Prefer it over generic elevation APIs when you need the directional gradient (not just slope magnitude) and need Danish-boundary enforcement built in. Complements sibling endpoints on the same platform for full terrain and soil characterisation.
Side effects
- Coordinate outside Denmark's Natural Earth boundary — rejected with an error before payment is charged
- Latitude or longitude outside the accepted European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Invalid or missing latitude/longitude — schema validation failure
- Network timeout or service unavailability — HTTP 5xx error
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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