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HALOWERK Southern Land – Portugal Soil CEC (0-5 cm)
x402
HALOWERK Southern Land – Portugal Soil CEC (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 cation exchange capacity (CEC) for the 0–5 cm topsoil layer at a given coordinate within Portugal, validated against the Natural Earth boundary.
Price / call$0.004
Success—
StatusUnknown
How this service works
Mean SoilGrids cation exchange capacity 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 mean cation exchange capacity value (in cmolc/kg) for the 0–5 cm topsoil layer at the requested coordinate, derived from SoilGrids data. The coordinate is first validated to be within Portugal's Natural Earth boundary; requests outside this area are rejected before the payment is processed.
Example use cases
Vineyard site soil fertility check
“I'm evaluating a potential vineyard plot near Évora — can you look up the topsoil cation exchange capacity at latitude 38.57, longitude -7.91 in Portugal so I know how well the soil retains nutrients?”
Environmental baseline survey
“For our ecological assessment near Setúbal, can you pull the mean SoilGrids CEC value for the 0–5 cm layer at 38.52 latitude, -8.89 longitude in Portugal?”
Agricultural land suitability scoring
“I'm comparing fields in the Algarve for an irrigation project — get me the topsoil CEC at coordinates 37.10 latitude, -8.22 longitude in Portugal.”
Technical details
Endpoint
POSThttps://suedland.halowerk.com/v1/pt-soil-cecWhen to prefer
Use this endpoint when you need the SoilGrids-derived mean CEC specifically for the 0–5 cm topsoil layer at a point location within Portugal. Prefer it over generic soil APIs when you need boundary-validated, per-coordinate lookups for Portugal and are comfortable with micro-payment per call. For other countries or other soil properties (pH, nitrogen, sand, clay), use the sibling endpoints on the same provider.
Side effects
- Coordinate outside Portugal boundary: request rejected before payment with an out-of-bounds error
- Latitude or longitude outside the European coverage range (lat 34–72.5, lon -31.5–40.5): schema validation failure
- Malformed or missing coordinate fields: input validation error
- Upstream SoilGrids data unavailable: service error or timeout
- Payment failure via x402 protocol: call not fulfilled
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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