# HALOWERK Southern Land – Italy Soil Silt Fraction (0-5 cm)

> HALOWERK Southern Land – Italy Soil Silt Fraction (0-5 cm) is a paid API for AI agents from suedland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-13).

Returns the mean SoilGrids silt fraction for the 0-5 cm soil layer at a given coordinate within Italy, validated against the Natural Earth Italy boundary.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/it-soil-silt
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-southern-land-italy-soil-silt-fraction-0-5-cm-853a12ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TDVnsGNbu301vyFE0eux3

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-southern-land-italy-soil-silt-fraction-0-5-cm-853a12ce -d '<json body>'
```

Example prompt: What's the mean silt fraction in the top 5 cm of soil at latitude 40.85, longitude 14.27 in Italy? I need it for a site assessment.

## When to prefer this

Choose this endpoint when you specifically need SoilGrids silt fraction data for the 0-5 cm topsoil layer at a point location within Italy. It is ideal for precision agriculture, land suitability analysis, viticulture, or environmental assessments requiring fine-grained soil texture data. Pair it with the sibling sand and clay fraction endpoints (also on suedland.halowerk.com) to derive full texture profiles or USDA texture class. Prefer this over general soil APIs when you need Italy-specific boundary-validated lookups with per-call micropayment pricing.

## Known failure modes

- Coordinate outside Italy boundary: request rejected before payment, no result returned
- Coordinate within European input bounds but outside Italy polygon: rejected by boundary validation
- Invalid latitude/longitude values outside the stated European coverage range (lat 34–72.5, lon -31.5–40.5): schema validation error
- Network or service unavailability: HTTP 5xx error
- Missing required parameters: HTTP 4xx validation error

## How this service works

Mean SoilGrids silt fraction for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Italy; results outside it are rejected before payment.

## Output

A numeric mean silt fraction value (likely as a percentage or ratio) from the SoilGrids dataset for the 0-5 cm soil depth at the queried coordinate, provided the point falls within the validated Natural Earth boundary for Italy. Coordinates outside Italy are rejected before payment is processed.

## 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-southern-land-italy-soil-silt-fraction-0-5-cm-853a12ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from suedland.halowerk.com](https://www.zero.xyz/host/suedland.halowerk.com/llms.txt)