# HALOWERK Atlantic Land – Luxembourg Soil Coarse Fragment Volume (0-5 cm)

> HALOWERK Atlantic Land – Luxembourg Soil Coarse Fragment Volume (0-5 cm) is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns the mean SoilGrids coarse-fragment volume (%) for the 0-5 cm soil layer at a given WGS84 coordinate validated against Luxembourg's national boundary.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/lu-soil-coarse-fragments
- 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-atlantic-land-luxembourg-soil-coarse-fragment-volume-0-5-cm-86f652be
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5YlohUbV4n5t_ifUMKE-h

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-atlantic-land-luxembourg-soil-coarse-fragment-volume-0-5-cm-86f652be -d '<json body>'
```

Example prompt: What's the coarse fragment volume in the top 5 cm of soil at latitude 49.6116, longitude 6.1319 in Luxembourg — I need the SoilGrids figure for a land suitability study.

## When to prefer this

Choose this endpoint when you need point-level topsoil coarse-fragment data specifically within Luxembourg and want a pre-validated, pay-per-call API rather than self-hosting SoilGrids queries. It is ideal for agents performing automated land parcel assessments, soil suitability scoring, or environmental reporting workflows that require Luxembourg-specific data with geographic boundary enforcement built in.

## Known failure modes

- Coordinate outside Luxembourg boundary — request rejected with a geographic validation error, no charge applied
- Latitude or longitude outside the European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Missing latitude or longitude field — bad request / validation error
- SoilGrids upstream data unavailable — service error or timeout
- Payment failure (x402 micropayment not completed) — request not fulfilled

## 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 Luxembourg; results outside it are rejected before payment.

## Output

A numeric value representing the mean volumetric coarse-fragment content (percentage) of the 0-5 cm topsoil layer at the queried coordinate, sourced from the SoilGrids dataset. The coordinate must fall within the Luxembourg national boundary; requests outside it are rejected before any charge is incurred.

## 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-atlantic-land-luxembourg-soil-coarse-fragment-volume-0-5-cm-86f652be/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from atlantikland.halowerk.com](https://www.zero.xyz/host/atlantikland.halowerk.com/llms.txt)