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HALOWERK Baltic Land – Mean Surface Slope (Poland)
x402
HALOWERK Baltic Land – Mean Surface Slope (Poland) is a paid API for AI agents from baltikum.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 coordinate validated against Poland's boundary.
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 Poland; results outside it are rejected before payment.
Output
A numeric value representing the mean first-order surface gradient (slope) computed across the analysis grid cells surrounding the queried coordinate within Poland. Coordinates outside the Poland boundary are rejected before any computation or payment is processed.
Example use cases
Agricultural land suitability screening
“Can you get the mean terrain slope at latitude 50.06, longitude 19.94 in Poland? I'm assessing whether this farmland parcel is suitable for mechanized cultivation.”
Infrastructure routing terrain assessment
“I need the average surface gradient at coordinates 54.35 latitude, 18.65 longitude in Poland — we're planning a road route and need to understand terrain steepness.”
Flood and erosion risk modeling
“What's the mean slope across the analysis grid at latitude 51.10, longitude 17.03 in Poland? I'm building an erosion risk model and need the gradient value for this watershed.”
Technical details
Endpoint
POSThttps://baltikum.halowerk.com/v1/pl-mean-slopeWhen to prefer
Choose this endpoint when you need a mean surface slope value for a specific point within Poland and want coordinate boundary validation (non-Polish coordinates are rejected before payment). It is ideal for applications requiring terrain gradient data for Polish territory such as agricultural suitability, infrastructure planning, or erosion modeling, and when integrated with other HALOWERK Baltic Land endpoints (max slope, ruggedness, land cover) for composite terrain analysis.
Side effects
- Coordinate outside Poland boundary — rejected before payment with a validation error
- Latitude or longitude outside the European coverage range (lat 34–72.5, lon -31.5–40.5) — request rejected
- Missing or malformed latitude/longitude fields — schema validation error
- Coordinate within European range but outside Poland boundary — boundary check failure before charge
- Service unavailability — HTTP 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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