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HALOWERK Atlantic Land – Mean Surface Slope (France)
x402
HALOWERK Atlantic Land – Mean Surface Slope (France) is a paid API for AI agents from atlantikland.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 an analysis grid cell for a given coordinate within France, validated against Natural Earth boundaries.
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 France; results outside it are rejected before payment.
Output
A numeric value representing the mean first-order surface gradient (slope) across the analysis grid cell centred on the provided coordinate. The coordinate is pre-validated against the Natural Earth boundary for France; coordinates outside France are rejected before any charge is incurred.
Example use cases
Solar farm site suitability screening
“I'm evaluating a potential solar farm site near Montpellier — can you get me the mean terrain slope at 43.61° N, 3.88° E in France so I can check if the land is flat enough?”
Agricultural runoff risk assessment
“For a vineyard plot near Bordeaux at 44.84° N, 0.57° W, what's the average surface slope? I need to understand erosion and runoff risk before planting.”
Infrastructure routing terrain analysis
“We're planning a rural road in the Dordogne near 45.1° N, 0.9° E — can you pull the mean surface gradient there so we can assess construction feasibility?”
Technical details
Endpoint
POSThttps://atlantikland.halowerk.com/v1/fr-mean-slopeWhen to prefer
Choose this endpoint when you need a precise, grid-level mean slope value for a specific point within France, particularly for land suitability analysis, agricultural planning, civil engineering, hydrology, or environmental assessments. It is especially useful when you need boundary-validated terrain metrics and want to avoid paying for out-of-bounds queries.
Side effects
- Coordinate outside France boundary — rejected before payment, returns validation error
- Coordinate outside European coverage range (lat 34–72.5, lon -31.5–40.5) — input schema validation error
- Missing or malformed latitude/longitude — returns 400 bad request
- Payment failure via x402 protocol — call not executed
- Service unavailability — returns 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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