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HALOWERK Eastern Land – HR Max Slope
x402
HALOWERK Eastern Land – HR Max Slope 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 maximum adjacent-cell surface gradient (steepest slope) across the analysis grid for a given coordinate within Croatia.
Price / call$0.003
Success—
StatusUnknown
How this service works
Maximum adjacent-cell surface gradient across the analysis grid. The coordinate is validated against the Natural Earth boundary for Croatia; results outside it are rejected before payment.
Output
A numeric value representing the maximum adjacent-cell surface gradient (steepest slope angle or ratio) computed across the analysis grid centered on the submitted coordinate. Coordinates outside Croatia's boundary are rejected before any computation or payment is processed.
Example use cases
Agricultural land suitability check
“I'm evaluating a plot in Croatia at latitude 45.55, longitude 17.2 for vineyard development — can you tell me the maximum slope gradient there so I know if the terrain is too steep for machinery?”
Construction site feasibility assessment
“We're planning a building project near latitude 44.1, longitude 15.8 in Croatia and need to know the steepest terrain slope at that location before we commission a full survey.”
Erosion risk pre-screening
“Can you get me the maximum surface slope at coordinates 45.8 latitude, 16.0 longitude in Croatia? We're screening sites for erosion risk and steepness is the first filter.”
Technical details
Endpoint
POSThttps://ostland.halowerk.com/v1/hr-max-slopeWhen to prefer
Choose this endpoint when you need the steepest terrain slope metric for a specific point within Croatia and want boundary validation guaranteed before billing. It is purpose-built for Croatian land analysis with built-in coordinate rejection outside the national boundary, making it reliable for agricultural suitability, construction planning, or erosion risk workflows in Croatia specifically. Prefer alternatives if you need slope data outside Croatia or require mean/median slope rather than the maximum adjacent-cell gradient.
Side effects
- Coordinate outside Croatia's Natural Earth boundary — request rejected before payment, returns validation error
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Malformed or missing coordinate fields — returns input validation error
- Network or service timeout — no result returned
- Ambiguous or borderline boundary coordinates may be rejected conservatively
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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