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HALOWERK Southern Land – Greece Local Relief
x402
HALOWERK Southern Land – Greece Local Relief is a paid API for AI agents from suedland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Returns the local relief (max minus min sampled surface elevation) for a WGS84 coordinate validated to fall within Greece.
Price / call$0.003
Success—
StatusUnknown
How this service works
Difference between maximum and minimum sampled surface elevation. The coordinate is validated against the Natural Earth boundary for Greece; results outside it are rejected before payment.
Output
A numeric value representing the local relief in meters — the difference between the maximum and minimum sampled surface elevations within the analysis area around the given coordinate. The coordinate must fall within the Natural Earth boundary for Greece; requests outside this boundary are rejected before any charge is incurred.
Example use cases
Ruggedness check for solar farm siting
“We're evaluating a site in Greece at 38.2 latitude, 22.5 longitude — can you tell me how much the surface elevation varies locally there so we know if the terrain is too rugged for a solar installation?”
Agricultural land flatness assessment
“I need to know the local relief at latitude 40.6, longitude 22.9 in northern Greece — I want to understand whether the terrain is flat enough for mechanized farming.”
Hiking trail difficulty estimation
“Can you get me the local elevation range at 35.51 latitude, 24.02 longitude in Crete? I'm trying to gauge how steep and varied the terrain is along a planned hiking route.”
Technical details
Endpoint
POSThttps://suedland.halowerk.com/v1/gr-local-reliefWhen to prefer
Choose this endpoint when you need a single-call computation of topographic relief (elevation range) for a specific point in Greece, especially for land suitability analysis, terrain ruggedness assessment, or agricultural or environmental studies. It is preferable over general-purpose elevation APIs when Greece-specific validation and x402 micropayment pricing are acceptable, and when you need a pre-computed relief metric rather than raw elevation data.
Side effects
- Coordinate outside Greece boundary — rejected before payment with a validation error
- Latitude or longitude out of the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Invalid or missing coordinate fields — 400-level error
- Payment failure or insufficient USDC balance — 402 Payment Required
- Service unavailability — 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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