# HALOWERK Europe Land – Soil Clay Fraction (Point, 60m)

> HALOWERK Europe Land – Soil Clay Fraction (Point, 60m) is a paid API for AI agents from euroland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns the mean SoilGrids clay fraction (%) for the 0–5 cm depth layer at a given European coordinate, evaluated over a 60-metre local analysis grid.

## Facts

- Endpoint: POST https://euroland.halowerk.com/v1/europe-soil-clay-point
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-europe-land-soil-clay-fraction-point-60m-0c7463ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5-DP38DUtTWynQmFMjxFL

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability halowerk-europe-land-soil-clay-fraction-point-60m-0c7463ca -d '<json body>'
```

Example prompt: What's the mean clay fraction in the top 5 cm of soil at latitude 48.85 and longitude 2.35 in Europe? I need the SoilGrids value for that exact point using a 60-metre analysis grid.

## When to prefer this

Use this endpoint when you need point-level topsoil clay fraction data within Europe and want a standardised SoilGrids-derived value over a defined 60-metre neighbourhood — ideal for precision agriculture, land suitability assessments, environmental impact studies, and construction site evaluations where sub-100m spatial resolution matters. Prefer this over generic soil databases when you need consistent, machine-readable values across all 30 covered European countries.

## Known failure modes

- Coordinate outside European coverage bounds (latitude 34–72.5, longitude -31.5–40.5) returns an error
- Missing or invalid latitude/longitude fields cause a validation error
- Payment failure via x402 protocol prevents endpoint access
- No-data result if the SoilGrids raster has a gap at the queried location

## How this service works

Mean SoilGrids clay fraction for the 0-5 cm layer. The service evaluates a 60 metre local analysis grid around one coordinate and returns standardized units across all 30 covered countries.

## Output

A standardized numeric value representing the mean clay fraction (in g/kg or percentage as per SoilGrids convention) for the 0–5 cm soil depth layer, derived from SoilGrids data and averaged over a 60-metre analysis grid centred on the supplied coordinate.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "latitude": {
   "type": "number",
   "maximum": 72.5,
   "minimum": 34,
   "description": "WGS84 latitude inside the published European coverage."
  },
  "longitude": {
   "type": "number",
   "maximum": 40.5,
   "minimum": -31.5,
   "description": "WGS84 longitude inside the published European coverage."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-europe-land-soil-clay-fraction-point-60m-0c7463ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from euroland.halowerk.com](https://www.zero.xyz/host/euroland.halowerk.com/llms.txt)