# HALOWERK Central Land – Slovenia Soil Coarse-Fragment Volume (0-5 cm)

> HALOWERK Central Land – Slovenia Soil Coarse-Fragment Volume (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 coarse-fragment volume (volumetric %) for the 0–5 cm soil layer at a given WGS84 coordinate within Slovenia.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/si-soil-coarse-fragments
- 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-slovenia-soil-coarse-fragment-volume-0-5-cm-101cba51
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_luVo-N3guopaxaCQqMXnc

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-slovenia-soil-coarse-fragment-volume-0-5-cm-101cba51 -d '<json body>'
```

Example prompt: What's the mean coarse-fragment volume of the topsoil (0-5 cm layer) at latitude 46.12, longitude 14.81 in Slovenia? I need the SoilGrids figure for that specific point.

## When to prefer this

Choose this endpoint when you need point-level SoilGrids coarse-fragment volume specifically for a location within Slovenia and want boundary pre-validation to avoid wasted payments. Prefer it over general SoilGrids API access when operating in a pay-per-call agent workflow and when Slovenia-scoped coverage is sufficient.

## Known failure modes

- Coordinate outside Slovenia boundary: request rejected before payment with an error indicating the point is outside the supported region
- Coordinate within European coverage but outside Slovenia: rejected by country-level boundary validation
- Missing or malformed latitude/longitude: schema validation error returned
- Latitude or longitude outside the broad European coverage bounds (34–72.5 N, -31.5–40.5 E): rejected
- Service or upstream SoilGrids data unavailable: server error response

## How this service works

Mean SoilGrids coarse-fragment volume for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Slovenia; results outside it are rejected before payment.

## Output

A numeric value representing the mean volumetric coarse-fragment content (%) of the 0–5 cm soil layer at the queried coordinate, sourced from SoilGrids. Coordinates outside the Natural Earth boundary of Slovenia are rejected before any charge is applied.

## 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-slovenia-soil-coarse-fragment-volume-0-5-cm-101cba51/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)