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HALOWERK Nordic Land – Mean Surface Slope (Iceland)
x402
HALOWERK Nordic Land – Mean Surface Slope (Iceland) is a paid API for AI agents from nordland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns the mean first-order surface gradient (slope) across the analysis grid for a given coordinate within Iceland.
Price / call$0.003
Success—
StatusUnknown
How this service works
Mean first-order surface gradient across the analysis grid. The coordinate is validated against the Natural Earth boundary for Iceland; results outside it are rejected before payment.
Output
A numeric value representing the mean first-order surface gradient (slope) across the analysis grid for the queried coordinate. Coordinates outside Iceland's Natural Earth boundary are rejected before processing.
Example use cases
Renewable energy site suitability assessment
“I'm evaluating a wind farm site in Iceland near latitude 65.2, longitude -18.5 — can you get me the mean surface slope there so I know if the terrain is suitable?”
Hiking trail difficulty rating
“For a trail planning project in Iceland, I need the average terrain gradient at latitude 63.8, longitude -19.1 to estimate trail steepness.”
Agricultural land evaluation in Iceland
“Can you check the mean slope at coordinates 65.5 latitude, -17.8 longitude in Iceland? I need to assess whether the terrain is flat enough for farming.”
Technical details
Endpoint
POSThttps://nordland.halowerk.com/v1/is-mean-slopeWhen to prefer
Use this endpoint when you need mean surface slope specifically for coordinates within Iceland, and require boundary-validated, per-call terrain gradient data. Prefer it over generic elevation APIs when you need a processed slope metric rather than raw elevation, and when Iceland-specific boundary validation is important for data quality.
Side effects
- Coordinate outside Iceland's Natural Earth boundary — request rejected before payment
- Latitude or longitude out of published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Missing or malformed latitude/longitude parameters — input schema validation failure
- Payment failure via x402 protocol — request not processed
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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