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HALOWERK Southern Land – Portugal Maximum Slope
x402
HALOWERK Southern Land – Portugal Maximum Slope 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 maximum adjacent-cell surface gradient across a local analysis grid for a given coordinate within Portugal
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 Portugal; results outside it are rejected before payment.
Output
A numeric value representing the maximum adjacent-cell surface gradient (slope) computed across the local analysis grid at the provided coordinate. Results are only returned for coordinates validated within the Natural Earth boundary of Portugal; coordinates outside Portugal are rejected before any charge is applied.
Example use cases
Agricultural land suitability screening
“I'm looking at a plot in Portugal near latitude 37.5, longitude -8.2 — can you tell me the maximum slope gradient there so I know if the terrain is too steep for mechanized farming?”
Construction site terrain assessment
“Before we proceed with planning, can you check the maximum adjacent-cell slope at latitude 41.1, longitude -8.6 in Portugal? We need to know how steep it gets at that site.”
Vineyard location scouting
“I'm scouting vineyard sites in the Douro Valley — what's the maximum surface gradient at latitude 41.15, longitude -7.65 in Portugal? Steeper slopes can be fine for vines but I need the exact number.”
Technical details
Endpoint
POSThttps://suedland.halowerk.com/v1/pt-max-slopeWhen to prefer
Use this endpoint when you need a precise maximum terrain slope metric for a specific coordinate in Portugal. It is ideal for land suitability assessments, construction planning, agricultural analysis, or environmental studies where steepness of terrain is a key factor. Prefer this over general DEM services when you need the adjacent-cell maximum gradient specifically and are working within Portugal's boundaries.
Side effects
- Coordinate outside Portugal boundary — request rejected before payment with a validation error
- Coordinate within European bounding box but outside Portugal — rejected by Natural Earth boundary check
- Latitude or longitude out of the accepted European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Missing required latitude or longitude parameter — returns parameter error
- Network or server error — non-2xx HTTP response with no result
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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