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HALOWERK Eastern Land – Croatia Terrain Ruggedness (Standard Deviation)
x402
HALOWERK Eastern Land – Croatia Terrain Ruggedness (Standard Deviation) is a paid API for AI agents from ostland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns the standard deviation of sampled surface elevations for a given coordinate within Croatia, quantifying terrain ruggedness at that location.
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 Croatia; results outside it are rejected before payment.
Output
A numeric value representing the standard deviation of sampled surface elevations at the specified coordinate, indicating how variable (rugged) the terrain is. The coordinate is first validated against the Natural Earth boundary for Croatia and rejected if outside it. Higher values indicate more rugged, variable terrain; lower values indicate flatter surfaces.
Example use cases
Agricultural land suitability screening
“I'm evaluating a plot near Karlovac at 45.49°N, 15.55°E in Croatia — can you check how rugged the terrain is there using elevation standard deviation so I know if it's suitable for farming machinery?”
Hiking trail difficulty assessment
“We're planning a new hiking trail near Plitvice Lakes at 44.88°N, 15.62°E in Croatia — what's the terrain ruggedness standard deviation there to help us estimate trail difficulty?”
Wind turbine site feasibility
“Before we commission a wind turbine survey, can you pull the elevation standard deviation ruggedness score for 45.1°N, 17.2°E in Croatia to check if the terrain is flat enough for viable installation?”
Technical details
Endpoint
POSThttps://ostland.halowerk.com/v1/hr-ruggednessWhen to prefer
Choose this endpoint when you need a single numeric terrain ruggedness metric (elevation standard deviation) for a specific point in Croatia. It is particularly useful when you need to distinguish between flat and hilly terrain for site suitability, infrastructure planning, ecological modeling, or recreational route assessment within Croatia. Prefer sibling endpoints for other terrain metrics like mean slope, elevation range, or soil properties.
Side effects
- Coordinate outside Croatia boundary: request rejected before computation with a validation error
- Latitude or longitude out of published European coverage range (lat 34–72.5, lon -31.5–40.5): rejected by schema validation
- Malformed or missing latitude/longitude parameters: schema validation error
- Payment failure (x402): request not processed if USDC payment cannot be confirmed
- Server-side elevation data unavailable for the sampled area: may return an error or null result
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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