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HALOWERK Europe Land – Soil Clay Fraction (Parcel Polygon)
x402
HALOWERK Europe Land – Soil Clay Fraction (Parcel Polygon) is a paid API for AI agents from euroland.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-15).
Returns the mean SoilGrids clay fraction (0–5 cm depth) for a user-supplied WGS84 polygon parcel across 30 European countries.
Price / call$0.006
Success—
StatusUnknown
How this service works
Mean SoilGrids clay fraction for the 0-5 cm layer. The service evaluates the bounded polygon supplied by the caller and returns standardized units across all 30 covered countries.
Output
A numeric value representing the mean clay fraction (standardized units) in the 0–5 cm soil layer for the supplied polygon, derived from ISRIC SoilGrids, covering 30 European countries.
Example use cases
Pre-purchase soil assessment for farmland
“I'm looking at buying a field in Burgundy, France — the parcel vertices are [4.80,47.10],[4.81,47.10],[4.81,47.11],[4.80,47.11]. Can you tell me the mean clay content in the top 5 cm so I know what kind of soil I'm dealing with?”
Precision agriculture crop suitability check
“Before we decide what to plant this season, can you pull the SoilGrids clay fraction for the 0–5 cm layer for our plot in Bavaria? The polygon coordinates are [11.50,48.20],[11.51,48.20],[11.51,48.21],[11.50,48.21].”
Carbon sequestration baseline mapping
“We're building a soil carbon model and need the topsoil clay percentage for several parcels in the Po Valley, Italy. Start with the polygon [10.20,45.05],[10.21,45.05],[10.21,45.06],[10.20,45.06] and give me the mean clay fraction at 0–5 cm depth.”
Technical details
Endpoint
POSThttps://euroland.halowerk.com/v1/europe-soil-clay-parcelWhen to prefer
Choose this endpoint when you need parcel-level (polygon-bounded) mean clay fraction data for the 0–5 cm topsoil layer within the 30 European countries covered by HALOWERK. It is ideal when precise parcel boundaries are known and standardized SoilGrids-sourced clay values are required. Prefer this over point-based lookups when the spatial aggregation across a field or plot boundary matters for decisions like crop planning, land valuation, or environmental modelling.
Side effects
- Polygon spans more than 0.25 degrees — request rejected with validation error
- Fewer than 3 coordinate pairs supplied — invalid polygon error
- Coordinates fall outside the 30-country European coverage area — out-of-bounds error
- Polygon self-intersects or is malformed — geometry error
- Payment not included or insufficient — HTTP 402 payment required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| polygon | array | WGS84 polygon ring. The closing coordinate is optional; maximum span is 0.25 degrees. |
Tags
x402
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