# HALOWERK Eastern Land – Romania Soil Texture Class

> HALOWERK Eastern Land – Romania Soil Texture Class 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. clay loam, sandy loam) for a WGS84 coordinate inside Romania, derived from SoilGrids sand, silt, and clay fractions.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/ro-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-romania-soil-texture-class-9a7d6103
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vCCQL-7hc1MfW0zJ5eIXG

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-romania-soil-texture-class-9a7d6103 -d '<json body>'
```

Example prompt: What's the USDA soil texture class at latitude 45.75, longitude 24.50 in Romania? I need to know whether it's sandy loam, clay loam, or something else based on the SoilGrids fractions.

## When to prefer this

Choose this endpoint when you need the USDA-classified soil texture (not raw fractions) for a specific point within Romania, especially when the coordinate boundary pre-validation is important to avoid unnecessary charges. Prefer it over generic SoilGrids queries when you need a classified output rather than raw percentages, and when you are operating in an agentic payment workflow using the x402 micropayment protocol.

## Known failure modes

- Coordinate outside Romania boundary: request rejected before payment, returns an error indicating the point is outside valid coverage
- Latitude or longitude outside the declared European range (34–72.5°N, -31.5–40.5°E): schema validation error
- Missing required latitude or longitude field: 400-level validation error
- SoilGrids upstream data unavailable for the queried cell: may return null or a service error
- Payment failure via x402 protocol: request not processed

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

## Output

The endpoint returns the USDA soil texture class (e.g. sandy loam, clay, silty clay loam) computed from SoilGrids sand, silt, and clay percentage fractions for the 0–5 cm layer at the given coordinate. Coordinates outside Romania's Natural Earth boundary are rejected before any charge is incurred.

## 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-romania-soil-texture-class-9a7d6103/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)