# HALOWERK Nordic Land – SoilGrids Silt Fraction (0–5 cm) for Norway

> HALOWERK Nordic Land – SoilGrids Silt Fraction (0–5 cm) for Norway 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 silt fraction (%) from SoilGrids for the 0–5 cm soil layer at a given coordinate within Norway, validated against the Natural Earth Norway boundary.

## Facts

- Endpoint: POST https://nordland.halowerk.com/v1/no-soil-silt
- 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-soilgrids-silt-fraction-0-5-cm-for-norway-6369051c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f-vqBcxccRrJf_y1Fwdyr

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-soilgrids-silt-fraction-0-5-cm-for-norway-6369051c -d '<json body>'
```

Example prompt: What's the mean silt fraction in the top 5 cm of soil at latitude 59.91 and longitude 10.75 in Norway? I need the SoilGrids silt percentage for that location.

## When to prefer this

Choose this endpoint when you need point-level SoilGrids silt fraction data specifically within Norway and want built-in boundary validation to avoid wasted calls. It is more appropriate than general SoilGrids API access when working within an agentic, pay-per-call workflow requiring micro-payment support. Prefer sibling endpoints on the same host when you also need clay, sand, pH, or organic carbon to build a full soil profile.

## Known failure modes

- Coordinate outside Norway boundary: request is rejected before payment with a boundary validation error
- Coordinate within European coverage bounds but outside Norway: rejected by Natural Earth polygon check
- Invalid latitude or longitude values outside the published European coverage range: schema validation error
- Service unavailable or upstream SoilGrids data gap: 5xx error returned

## How this service works

Mean SoilGrids silt fraction 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 a numeric value representing the mean silt fraction (g/kg or %) in the 0–5 cm topsoil layer at the given coordinate, sourced from SoilGrids. The coordinate is first validated against Norway's Natural Earth boundary; requests 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-soilgrids-silt-fraction-0-5-cm-for-norway-6369051c/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)