# HALOWERK Nordic Land – Norway Soil Bulk Density (0-5 cm)

> HALOWERK Nordic Land – Norway Soil Bulk Density (0-5 cm) is a paid API for AI agents from nordland.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 Norway.

## Facts

- Endpoint: POST https://nordland.halowerk.com/v1/no-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-nordic-land-norway-soil-bulk-density-0-5-cm-5c94f24b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KxDykJduAaXTCPfhsN0iX

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-nordic-land-norway-soil-bulk-density-0-5-cm-5c94f24b -d '<json body>'
```

Example prompt: What's the mean soil bulk density for the top 5 cm at latitude 59.91 and longitude 10.75 in Norway? I need the SoilGrids figure for that point.

## When to prefer this

Use this endpoint when you specifically need SoilGrids mean bulk density for the 0-5 cm topsoil layer at a point coordinate within Norway. It is ideal when working on Norwegian land assessment, precision agriculture, environmental modeling, or construction site characterization where topsoil physical density is required. Prefer this over generic SoilGrids API wrappers when you need Norway-validated, pay-per-call access without provisioning your own SoilGrids account. If you need other soil properties (pH, organic carbon, texture), sibling endpoints on the same provider cover those.

## Known failure modes

- Coordinate outside Norway boundary — rejected pre-payment with an error indicating the point is not within the Norway polygon
- Latitude or longitude out of the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- SoilGrids data unavailable or no-data pixel at the queried location — may return null or an error response
- Payment failure via x402 protocol — call not processed
- Malformed request body — missing or non-numeric latitude/longitude fields

## How this service works

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

## Output

Returns the mean SoilGrids bulk density value (typically in kg/dm³ or g/cm³) for the 0-5 cm topsoil layer at the queried coordinate. The coordinate is first validated against Norway's Natural Earth boundary; coordinates outside Norway 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-nordic-land-norway-soil-bulk-density-0-5-cm-5c94f24b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nordland.halowerk.com](https://www.zero.xyz/host/nordland.halowerk.com/llms.txt)