# HALOWERK Nordic Land – Iceland Soil Texture Class

> HALOWERK Nordic Land – Iceland Soil Texture Class 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 USDA soil texture class (e.g. loam, sandy clay) for a given coordinate in Iceland, derived from SoilGrids sand, silt, and clay fractions, with boundary validation against Iceland's Natural Earth polygon.

## Facts

- Endpoint: POST https://nordland.halowerk.com/v1/is-soil-texture
- 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-iceland-soil-texture-class-7754b04d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6qVC7D4JKDg1ugWNXWu_X

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-iceland-soil-texture-class-7754b04d -d '<json body>'
```

Example prompt: What's the USDA soil texture class at latitude 65.2 and longitude -19.0 in Iceland — is it sandy, loamy, or something else?

## When to prefer this

Use this endpoint when you need a categorical USDA soil texture classification (rather than raw numeric fractions) for a point specifically within Iceland. It is preferable to fetching raw SoilGrids sand/silt/clay fractions separately and computing the texture yourself, as the classification logic is pre-applied. Choose sibling endpoints for raw fractions (sand, silt, clay), pH, organic carbon, or coarse fragment data.

## Known failure modes

- Coordinate outside Iceland boundary — rejected before payment with a boundary validation error
- Latitude or longitude out of the accepted European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation failure
- SoilGrids upstream data unavailable — service error response
- Malformed or missing coordinate fields — input validation error

## How this service works

USDA texture class calculated from SoilGrids sand, silt and clay fractions. The coordinate is validated against the Natural Earth boundary for Iceland; results outside it are rejected before payment.

## Output

Returns the USDA soil texture class (e.g. 'Sandy loam', 'Clay', 'Silt loam') derived from SoilGrids sand, silt, and clay fractions for the queried Icelandic coordinate. Coordinates outside the Iceland Natural Earth boundary are rejected before any charge is made.

## 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-iceland-soil-texture-class-7754b04d/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)