# HALOWERK Nordic Land – Sweden Soil Coarse-Fragment Volume (0-5 cm)

> HALOWERK Nordic Land – Sweden Soil Coarse-Fragment Volume (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 coarse-fragment volume (%) for the 0–5 cm soil layer at a given WGS84 coordinate validated against the Sweden boundary.

## Facts

- Endpoint: POST https://nordland.halowerk.com/v1/se-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-nordic-land-sweden-soil-coarse-fragment-volume-0-5-cm-1cfd84a1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UoZYAVetdbdd2fbYR134e

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-sweden-soil-coarse-fragment-volume-0-5-cm-1cfd84a1 -d '<json body>'
```

Example prompt: What's the SoilGrids mean coarse-fragment volume in the 0-5 cm soil layer at latitude 59.33, longitude 18.07 in Sweden?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call lookup of SoilGrids coarse-fragment volume specifically within Sweden. It is preferable to a full SoilGrids API integration when you only need topsoil (0-5 cm) coarse-fragment data for Swedish coordinates, want boundary pre-validation so you are never charged for out-of-scope points, and need a simple POST interface with microtransaction pricing via x402.

## Known failure modes

- Coordinate outside Sweden boundary – request rejected before payment with a validation error
- Latitude or longitude out of the published European coverage range (lat 34–72.5, lon -31.5–40.5) – schema validation error
- Network timeout or upstream SoilGrids data unavailability – service error response
- Malformed or missing latitude/longitude fields – input validation error

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

## Output

A numeric value representing the mean volumetric coarse-fragment content (% by volume) of the 0–5 cm soil layer at the queried coordinate, derived from SoilGrids. Coordinates outside the Natural Earth boundary of Sweden 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-sweden-soil-coarse-fragment-volume-0-5-cm-1cfd84a1/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)