# HALOWERK Southern Land Italy Soil pH

> HALOWERK Southern Land Italy Soil pH is a paid API for AI agents from suedland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns mean SoilGrids pH (H2O) for the 0–5 cm depth layer at a given coordinate validated to fall within Italy's boundaries.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/it-soil-ph
- 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-southern-land-italy-soil-ph-6c647ecc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p-zgseLsZ8apATpjd283M

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-ph-6c647ecc -d '<json body>'
```

Example prompt: What's the soil pH in the top 5 centimeters at latitude 43.7696 longitude 11.2558 in Italy? I want the SoilGrids H2O measurement for that spot.

## When to prefer this

Choose this endpoint when you need a point-specific, validated soil pH reading for a location confirmed to be within Italy, backed by the SoilGrids dataset. It is preferable over generic soil APIs when Italian boundary enforcement is important (e.g. to avoid paying for out-of-territory coordinates), or when you need the 0-5 cm surface layer specifically. Pair with sibling endpoints on suedland.halowerk.com for sand fraction, CEC, texture class, and land cover data at the same coordinate.

## Known failure modes

- Coordinate outside Italy boundary — request rejected before payment, HTTP 422 or similar
- Latitude or longitude out of European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Missing latitude or longitude parameter — validation error
- SoilGrids upstream data unavailable for location — may return null or error
- Network timeout or service unavailability — HTTP 5xx

## How this service works

Mean SoilGrids pH in H2O 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 soil pH value (H2O method) for the 0–5 cm layer at the queried coordinate, sourced from the SoilGrids dataset. The coordinate must fall within the Natural Earth boundary polygon for Italy; requests outside this boundary are rejected before any charge is applied.

## 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-ph-6c647ecc/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)