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HALOWERK Eastern Land – Bulgaria Surface Elevation
x402
HALOWERK Eastern Land – Bulgaria Surface Elevation 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 bilinear-interpolated surface elevation for a WGS84 coordinate within Bulgaria, sourced from the Copernicus DEM GLO-30 dataset.
Price / call$0.003
Success—
StatusUnknown
How this service works
Bilinear surface elevation from Copernicus DEM GLO-30. The coordinate is validated against the Natural Earth boundary for Bulgaria; results outside it are rejected before payment.
Output
Returns a single bilinear-interpolated elevation value (in metres above sea level) for the queried WGS84 coordinate derived from the Copernicus DEM GLO-30 raster. Coordinates outside the Bulgaria boundary are rejected before any charge is applied.
Example use cases
Route elevation profiling in Bulgaria
“I'm planning a hiking route through the Rila mountains — can you look up the surface elevation at 42.18 latitude, 23.59 longitude in Bulgaria so I can estimate the climb?”
Agricultural land assessment
“We're evaluating farmland near Plovdiv — what is the terrain elevation at latitude 42.15, longitude 24.75 in Bulgaria?”
Infrastructure site feasibility check
“Before we approve the building permit, can you fetch the Copernicus DEM elevation at 43.21 latitude, 27.92 longitude inside Bulgaria for our drainage calculations?”
Technical details
Endpoint
POSThttps://ostland.halowerk.com/v1/bg-elevationWhen to prefer
Use this endpoint when you need high-resolution (GLO-30, ~30 m) surface elevation for a specific point within Bulgaria and want coordinate pre-validation to avoid wasted calls. Prefer it over generic elevation APIs when you specifically need Copernicus DEM data for Bulgarian territory with per-call micropayment pricing.
Side effects
- Coordinate outside Bulgaria boundary — rejected with an error before payment is processed
- Coordinate within the European coverage bounding box but outside Bulgaria — validation failure
- Latitude or longitude out of the accepted European range (lat 34–72.5, lon −31.5–40.5) — input validation error
- Network or service timeout
- Payment failure via x402 protocol
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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