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HALOWERK Eastern Land – Croatia Depression Depth
x402
HALOWERK Eastern Land – Croatia Depression Depth 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 positive elevation difference between a neighborhood mean and the center cell elevation for a given coordinate in Croatia, quantifying local topographic depression depth.
Price / call$0.003
Success—
StatusUnknown
How this service works
Positive difference between the neighborhood mean and center elevation. The coordinate is validated against the Natural Earth boundary for Croatia; results outside it are rejected before payment.
Output
A numeric value representing the positive difference (in meters) between the neighborhood mean surface elevation and the center cell elevation at the queried coordinate. If the coordinate falls outside Croatia's Natural Earth boundary, the request is rejected without processing.
Example use cases
Flood risk terrain assessment
“I need to know how topographically depressed the ground is at latitude 45.15, longitude 13.95 in Croatia — how far below the surrounding neighborhood elevation does the center point sit?”
Agricultural drainage planning
“Can you calculate the depression depth at coordinates 46.1 latitude and 16.3 longitude in Croatia? I want to understand if that field sits in a hollow relative to its surroundings.”
Karst sinkhole detection survey
“Check the elevation depression depth at latitude 43.9, longitude 16.4 in Croatia — I'm looking for areas where the surface dips significantly below the local mean.”
Technical details
Endpoint
POSThttps://ostland.halowerk.com/v1/hr-depression-depthWhen to prefer
Choose this endpoint when you need a precise, per-point measure of local topographic depression depth specifically within Croatia, validated against official boundary data. It is ideal for terrain hollowness analysis, karst feature detection, agricultural drainage assessments, or flood-risk modeling workflows where Croatia-scoped geospatial accuracy and boundary enforcement are required.
Side effects
- Coordinate outside Croatia's Natural Earth boundary — request rejected before payment
- Latitude or longitude outside published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Non-numeric or missing coordinate fields — schema validation failure
- Center elevation higher than neighborhood mean (no depression) — may return zero or null
- 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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