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HALOWERK Nordic Land – Finland Maximum Surface Slope
x402
HALOWERK Nordic Land – Finland Maximum Surface Slope 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 maximum adjacent-cell surface gradient (steepest slope) across the analysis grid for a given coordinate within Finland.
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 Finland; results outside it are rejected before payment.
Output
A numeric value representing the maximum adjacent-cell surface gradient (steepest slope) across the analysis grid for the queried coordinate in Finland. Coordinates outside the Natural Earth boundary for Finland are rejected before any charge is applied.
Example use cases
Construction site terrain suitability check
“I'm evaluating a site near Helsinki at 60.25°N, 25.01°E — what's the maximum surface gradient there? I need to know how steep the terrain is before we proceed with planning.”
Wind turbine placement assessment
“Check the maximum slope at latitude 65.01 and longitude 25.47 in Finland — I'm trying to find flat enough terrain for a wind turbine installation and need the steepest gradient across that grid cell.”
Forest road routing feasibility
“Can you get me the maximum adjacent-cell surface slope at 68.5°N, 27.3°E in Finland? I'm routing a forest road and need to know if the terrain gradient there is passable for heavy vehicles.”
Technical details
Endpoint
POSThttps://nordland.halowerk.com/v1/fi-max-slopeWhen to prefer
Choose this endpoint when you need the maximum terrain slope metric for a specific point inside Finland, particularly for land suitability analysis, infrastructure planning, agricultural assessment, or environmental modeling. It is distinct from mean elevation or elevation standard deviation endpoints — use it when the steepest gradient, not average elevation or variability, is the deciding factor. Useful when boundary validation against Finland's official Natural Earth geometry is required before incurring any cost.
Side effects
- Coordinate outside Finland boundary: request rejected before payment, no result returned
- Latitude or longitude out of European coverage range (lat 34–72.5, lon -31.5–40.5): validation error
- Malformed or missing coordinate parameters: input schema validation failure
- Payment failure or insufficient USDC balance: transaction not completed, 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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