# HALOWERK Southern Land – Italy Soil Organic Carbon (0-5 cm)

> HALOWERK Southern Land – Italy Soil Organic Carbon (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 organic carbon content for the 0-5 cm soil layer at a given coordinate within Italy, validated against Natural Earth boundaries.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/it-soil-organic-carbon
- 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-organic-carbon-0-5-cm-6a9b8e62
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5SaZscEEEU6RUONx6kcX7

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-organic-carbon-0-5-cm-6a9b8e62 -d '<json body>'
```

Example prompt: What's the mean soil organic carbon content in the top 5 cm at latitude 44.5, longitude 11.3 in Italy — I need the SoilGrids value for that point.

## When to prefer this

Choose this endpoint when you need point-level mean soil organic carbon data for a location within Italy, specifically sourced from the SoilGrids dataset at the 0-5 cm depth layer. It is ideal for agricultural site assessment, land carbon accounting, and environmental monitoring workflows where precise topsoil carbon values are needed and the target location is confirmed to be in Italy. The boundary pre-validation ensures you are not charged for out-of-scope coordinates.

## Known failure modes

- Coordinate outside Italy boundary — request rejected before charge, returns validation error
- Latitude or longitude out of published European range (34–72.5°N, -31.5–40.5°E) — schema validation error
- Missing latitude or longitude parameter — returns 400 bad request
- Payment failure via x402 — request not processed
- Network timeout or service unavailability — returns 5xx error

## How this service works

Mean SoilGrids organic carbon 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 value representing the mean SoilGrids organic carbon content (g/kg or dg/kg) for the 0-5 cm topsoil layer at the requested coordinate, derived from the SoilGrids dataset. Coordinates outside Italy's Natural Earth boundary are rejected before the 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-organic-carbon-0-5-cm-6a9b8e62/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)