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HALOWERK Eastern Land – Bulgaria Depression Depth
x402
HALOWERK Eastern Land – Bulgaria 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 2026-09-15).
Returns the positive difference between the neighborhood mean elevation and the center cell elevation for a coordinate in Bulgaria, quantifying how deep a topographic depression is.
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 Bulgaria; results outside it are rejected before payment.
Output
A numeric value representing the positive difference between the neighborhood mean surface elevation and the center cell elevation at the queried coordinate, indicating how deep the terrain depression is at that point. Returns an error if the coordinate falls outside Bulgaria's Natural Earth boundary.
Example use cases
Agricultural drainage site assessment
“I'm evaluating a farm field in Bulgaria near latitude 41.95, longitude 25.30 — can you tell me the depression depth there so I know if water is likely to pool and drain poorly?”
Hydrological sink mapping
“I'm mapping potential water collection points in the Bulgarian lowlands. Can you give me the depression depth for coordinates 43.21 latitude, 27.45 longitude?”
Construction site terrain evaluation
“Before we break ground on a project at latitude 42.70, longitude 23.20 in Bulgaria, I need the topographic depression depth to understand if we're building in a natural low point.”
Technical details
Endpoint
POSThttps://ostland.halowerk.com/v1/bg-depression-depthWhen to prefer
Use this endpoint when you need a precise, Bulgaria-specific topographic depression depth metric — the positive excess of neighborhood mean elevation over center elevation — for applications like hydrological sink identification, agricultural drainage assessment, or terrain characterization within Bulgaria. Prefer this over generic elevation APIs when you specifically need the depression depth (not raw elevation) and your point of interest is confirmed to be within Bulgaria.
Side effects
- Coordinate outside Bulgaria boundary — request rejected before payment is processed
- Latitude or longitude out of the European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Invalid or missing coordinates — schema validation failure
- Non-positive depression (location is elevated relative to surroundings) — may return zero or be rejected
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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