# HALOWERK Atlantic Land – Netherlands Soil Bulk Density (0-5 cm)

> HALOWERK Atlantic Land – Netherlands Soil Bulk Density (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 bulk density for the 0-5 cm topsoil layer at a given WGS84 coordinate within the Netherlands boundary.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/nl-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-atlantic-land-netherlands-soil-bulk-density-0-5-cm-8b7a5c02
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p0dEVIeYC7vKzpjandXJ2

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-netherlands-soil-bulk-density-0-5-cm-8b7a5c02 -d '<json body>'
```

Example prompt: What is the mean SoilGrids bulk density of the top 5 cm of soil at latitude 52.37 and longitude 4.89 in the Netherlands?

## When to prefer this

Use this endpoint when you need authoritative SoilGrids-sourced topsoil bulk density data for a specific point location within the Netherlands, especially for land assessment, agricultural planning, environmental baseline studies, or construction site surveys. It is preferable over generic soil APIs when Netherlands-specific boundary validation and SoilGrids methodology are required. Choose sibling endpoints on the same host for other soil properties (organic carbon, CEC) or terrain indices at the same location.

## Known failure modes

- Coordinate outside the Netherlands boundary — request rejected before payment, no charge incurred
- Latitude or longitude outside European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Missing latitude or longitude parameters — bad request error
- SoilGrids data unavailable for the given location — empty or null result

## How this service works

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

## Output

A numeric value representing the mean SoilGrids bulk density (typically in kg/dm³ or g/cm³) for the 0–5 cm topsoil layer at the requested coordinate, derived from the SoilGrids dataset, provided the coordinate falls within the Netherlands boundary. Requests outside the boundary are rejected before 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-atlantic-land-netherlands-soil-bulk-density-0-5-cm-8b7a5c02/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)