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HALOWERK Baltic Land — Estonia Mean Surface Slope
x402
HALOWERK Baltic Land — Estonia Mean Surface Slope 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 given WGS84 coordinate within Estonia.
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 Estonia; results outside it are rejected before payment.
Output
A numeric value representing the mean first-order surface gradient (slope) across the analysis grid centered on the requested coordinate, validated to lie within the Estonia boundary. Requests for coordinates outside Estonia are rejected before any charge is made.
Example use cases
Agricultural land suitability screening
“I'm evaluating a farm plot near Tartu, Estonia — can you get the mean terrain slope at latitude 58.37, longitude 26.72 so I can assess whether it's suitable for machinery?”
Infrastructure routing feasibility
“We're planning a road route through eastern Estonia and need to know the average surface gradient near latitude 58.85, longitude 27.40 — can you pull the mean slope for that point?”
Flood and erosion risk assessment
“For an environmental study in Estonia around latitude 59.10, longitude 25.55, what is the mean first-order surface slope? We need it to estimate runoff and erosion potential.”
Technical details
Endpoint
POSThttps://baltikum.halowerk.com/v1/ee-mean-slopeWhen to prefer
Choose this endpoint when you need the mean first-order surface slope specifically for a coordinate within Estonia, particularly when boundary validation is required before processing. It is ideal for land suitability, environmental risk, infrastructure planning, or any application that requires a reliable, pre-validated terrain gradient value for Estonian locations. Prefer it over general-purpose elevation APIs when you specifically need slope (gradient) rather than raw elevation, and when operating within Estonia.
Side effects
- Coordinate outside Estonia boundary — request rejected before payment with a validation error
- Coordinate outside the broader European coverage window (lat 34–72.5, lon -31.5–40.5) — rejected at schema validation
- Missing or malformed latitude/longitude — returns a 400-level error
- Payment failure via x402 protocol — call not executed
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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