# HALOWERK Eastern Land – Croatia Soil Texture Classifier

> HALOWERK Eastern Land – Croatia Soil Texture Classifier is a paid API for AI agents from ostland.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. sandy loam, clay) for a WGS84 coordinate in Croatia, derived from SoilGrids sand, silt, and clay fractions.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/hr-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-eastern-land-croatia-soil-texture-classifier-f43689d2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bELiIIkuQxsJtNAzKYIgc

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-eastern-land-croatia-soil-texture-classifier-f43689d2 -d '<json body>'
```

Example prompt: What's the USDA soil texture class at latitude 45.55, longitude 18.12 in Croatia? I need to know if it's sandy loam, clay, or something else for a planting decision.

## When to prefer this

Choose this endpoint when you need USDA soil texture classification specifically for a location in Croatia and want a low-latency, per-call paid lookup without managing SoilGrids API credentials yourself. It is purpose-built for Croatian coordinates with boundary validation included, making it suitable for agricultural planning, land assessment, or environmental workflows in Croatia.

## Known failure modes

- Coordinate outside Croatia's Natural Earth boundary — request rejected before payment is charged
- Latitude or longitude outside the published European coverage range — validation error
- SoilGrids upstream data unavailable for the queried cell — service error returned
- Malformed input (non-numeric coordinates) — schema validation failure
- Payment not completed via x402 — unauthorized response

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

## Output

Returns the USDA soil texture class (e.g. 'Sandy Loam', 'Clay Loam', 'Silt') for the queried coordinate, computed from SoilGrids sand, silt, and clay fraction data for the 0–5 cm layer, along with the underlying fraction values. The coordinate must fall within Croatia's Natural Earth boundary or the request is rejected.

## 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-eastern-land-croatia-soil-texture-classifier-f43689d2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ostland.halowerk.com](https://www.zero.xyz/host/ostland.halowerk.com/llms.txt)