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HALOWERK Atlantic Land – France Surface Ruggedness (Standard Deviation of Elevation)
x402
HALOWERK Atlantic Land – France Surface Ruggedness (Standard Deviation of Elevation) is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Returns the standard deviation of sampled surface elevations (terrain ruggedness index) for a given coordinate within France, validated against Natural Earth boundaries.
Price / call$0.003
Success—
StatusUnknown
How this service works
Standard deviation of sampled surface elevations. The coordinate is validated against the Natural Earth boundary for France; results outside it are rejected before payment.
Output
A numeric value representing the standard deviation of sampled surface elevations at the queried coordinate, indicating terrain ruggedness. Higher values mean more uneven, rough terrain; lower values indicate flatter surfaces. Coordinates outside the Natural Earth boundary for France are rejected before any charge is applied.
Example use cases
Construction site terrain assessment
“I'm evaluating a site near latitude 43.6, longitude 3.9 in southern France — can you tell me how rugged the terrain is there based on surface elevation variability?”
Agricultural land suitability screening
“We're looking at farmland near latitude 47.2, longitude 1.5 in central France. How variable is the surface elevation there — is the land relatively flat or uneven?”
Outdoor route planning ruggedness check
“Before we plan our trail, can you check the terrain ruggedness at latitude 45.9, longitude 6.8 in the French Alps — specifically the standard deviation of surface elevations?”
Technical details
Endpoint
POSThttps://atlantikland.halowerk.com/v1/fr-ruggednessWhen to prefer
Choose this endpoint when you need a quantitative measure of terrain roughness (elevation standard deviation) for a specific point in France, particularly for land assessment, construction suitability, agricultural screening, or route planning. It is distinct from mean slope (gradient) or runoff tendency endpoints — use it when surface elevation variability itself is the key metric.
Side effects
- Coordinate outside France boundary — request rejected before payment with a validation error
- Latitude or longitude outside accepted WGS84 range (34–72.5°N, -31.5–40.5°E) — schema validation error
- Payment failure via x402 protocol — request not processed
- No elevation data available for the queried point — may return null or an error response
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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