# HALOWERK Central Land – Liechtenstein Soil Clay Fraction (0-5 cm)

> HALOWERK Central Land – Liechtenstein Soil Clay Fraction (0-5 cm) is a paid API for AI agents from mitteleuropa.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-13).

Returns the mean SoilGrids clay fraction for the 0-5 cm depth layer at a given WGS84 coordinate within Liechtenstein's boundary.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/li-soil-clay
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-central-land-liechtenstein-soil-clay-fraction-0-5-cm-3cbdcfe9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XiP8xjGmJzMKmRKKK4Z_I

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-central-land-liechtenstein-soil-clay-fraction-0-5-cm-3cbdcfe9 -d '<json body>'
```

Example prompt: What's the SoilGrids clay fraction in the top 5 centimeters of soil at latitude 47.14, longitude 9.52 in Liechtenstein?

## When to prefer this

Choose this endpoint when you specifically need SoilGrids-derived topsoil clay fraction data for a point within Liechtenstein and want boundary validation built in before payment. Prefer it over generic soil APIs when you need standardized 0-5 cm depth data tied to the SoilGrids dataset with per-call micro-pricing via x402.

## Known failure modes

- Coordinate outside Liechtenstein boundary — request rejected before payment with a boundary validation error
- Latitude or longitude outside European coverage range (34–72.5°N, -31.5–40.5°E) — schema validation error
- Missing required latitude or longitude parameter — 400-level error
- Network or upstream SoilGrids data unavailability — 5xx server error

## How this service works

Mean SoilGrids clay fraction for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Liechtenstein; results outside it are rejected before payment.

## Output

A numeric value representing the mean clay fraction (likely as a percentage or volumetric fraction) of the 0-5 cm soil layer at the queried coordinate, derived from SoilGrids data. The coordinate is validated against the Natural Earth boundary for Liechtenstein; out-of-bounds coordinates are rejected before any payment is processed.

## 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-central-land-liechtenstein-soil-clay-fraction-0-5-cm-3cbdcfe9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mitteleuropa.halowerk.com](https://www.zero.xyz/host/mitteleuropa.halowerk.com/llms.txt)