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HALOWERK Eastern Land – Bulgaria Terrain Ruggedness Index
x402
HALOWERK Eastern Land – Bulgaria Terrain Ruggedness Index is a paid API for AI agents from ostland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Returns the standard deviation of sampled surface elevations (terrain ruggedness index) for a given WGS84 coordinate within Bulgaria.
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 Bulgaria; results outside it are rejected before payment.
Output
A numeric terrain ruggedness index value representing the standard deviation of sampled surface elevations at the queried Bulgarian coordinate. Coordinates outside Bulgaria's Natural Earth boundary are rejected before billing.
Example use cases
Agricultural suitability screening
“I'm evaluating farmland parcels in Bulgaria — can you get me the terrain ruggedness score for the plot at 43.02 latitude, 25.61 longitude? I need to know how hilly it is before we proceed.”
Renewable energy site assessment
“We're scouting a potential wind farm location in Bulgaria near 41.88 latitude, 23.97 longitude. Can you check the surface elevation variability there so we know how uneven the terrain is?”
Hiking trail difficulty estimation
“I'm planning a hiking route through Bulgaria and want to understand how rugged the terrain is around 42.55 latitude, 25.30 longitude — can you pull the elevation standard deviation for that area?”
Technical details
Endpoint
POSThttps://ostland.halowerk.com/v1/bg-ruggednessWhen to prefer
Use this endpoint when you need a point-level terrain ruggedness (elevation standard deviation) metric specifically for locations within Bulgaria. It is preferable over generic elevation APIs when you need ruggedness rather than raw elevation, and over broader European terrain services when Bulgaria-scoped validation and per-point pricing are acceptable. Well-suited for land suitability, agriculture, renewable energy siting, and infrastructure planning workflows.
Side effects
- Coordinate outside Bulgaria's Natural Earth boundary — request rejected, no charge
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Missing or malformed latitude/longitude in request body
- Payment failure via x402 protocol — request not processed
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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