# HALOWERK Central Land – Austria Soil Bulk Density (0-5 cm)

> HALOWERK Central Land – Austria Soil Bulk Density (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 2026-09-15).

Returns the mean SoilGrids bulk density for the 0–5 cm topsoil layer at a given WGS84 coordinate within Austria.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/at-soil-bulk-density
- 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-central-land-austria-soil-bulk-density-0-5-cm-bb587047
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xk5sG3Z0xYiaDd7OdyE-F

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-austria-soil-bulk-density-0-5-cm-bb587047 -d '<json body>'
```

Example prompt: What's the mean soil bulk density for the 0–5 cm topsoil layer at latitude 47.8 and longitude 13.05 in Austria?

## When to prefer this

Use this endpoint when you need topsoil (0–5 cm) bulk density data specifically for a location within Austria, sourced from the globally consistent SoilGrids dataset. Prefer this over general soil APIs when you need Austria-validated, pay-per-call access to a standardized SoilGrids metric without managing your own geospatial infrastructure. It is well-suited for agricultural analysis, environmental assessments, or land suitability studies where soil physical properties at the topsoil layer are required.

## Known failure modes

- Coordinate outside Austria boundary — request is rejected before payment with a boundary validation error
- Latitude or longitude out of the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Coordinates technically in Europe but not in Austria — rejected by Natural Earth boundary check
- SoilGrids data unavailable or no-data pixel at the given location — may return null or error response
- Malformed request body or missing required fields — returns input validation error

## How this service works

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

## Output

Returns the mean SoilGrids bulk density value for the 0–5 cm topsoil layer at the given coordinate. The coordinate is validated against Austria's Natural Earth boundary; requests falling outside Austria 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-austria-soil-bulk-density-0-5-cm-bb587047/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)