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HALOWERK Southern Land – Portugal Soil Total Nitrogen (0-5 cm)
x402
HALOWERK Southern Land – Portugal Soil Total Nitrogen (0-5 cm) is a paid API for AI agents from suedland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).
Returns the mean SoilGrids total nitrogen content for the 0-5 cm soil layer at a given coordinate within Portugal, validated against Natural Earth boundaries.
Price / call$0.004
Success—
StatusUnknown
How this service works
Mean SoilGrids total nitrogen for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Portugal; results outside it are rejected before payment.
Output
A numeric value representing the mean SoilGrids total nitrogen content (cg/kg or equivalent unit) for the 0-5 cm soil layer at the queried coordinate. Returns an error or rejection if the coordinate falls outside the Natural Earth boundary for Portugal.
Example use cases
Vineyard soil fertility assessment
“Can you pull the total nitrogen content in the top 5 cm of soil for my vineyard plot near Évora — coordinates are latitude 38.57, longitude -7.91?”
Agricultural land suitability screening
“I'm evaluating farmland in the Algarve region. What's the SoilGrids total nitrogen level at latitude 37.20, longitude -8.40 in the 0-5 cm layer?”
Environmental baseline for land survey
“For an environmental study in northern Portugal, I need the mean topsoil nitrogen reading at latitude 41.55, longitude -8.43 — can you get that from SoilGrids?”
Technical details
Endpoint
POSThttps://suedland.halowerk.com/v1/pt-soil-nitrogenWhen to prefer
Use this endpoint when you need topsoil nitrogen data specifically for a point location within Portugal and want automatic boundary validation to avoid out-of-scope queries. Prefer this over generic SoilGrids API access when you need a simple, pay-per-call lookup with built-in geographic filtering for Portuguese territory.
Side effects
- Coordinate outside Portugal boundary — request rejected before payment is processed
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5)
- Invalid or missing coordinate parameters in request body
- Service unavailable or upstream SoilGrids data unreachable
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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