# HALOWERK Central Land – Liechtenstein Soil pH (0-5 cm)

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

Returns the mean SoilGrids pH in H2O for the 0-5 cm soil layer at a given coordinate within Liechtenstein, validated against Natural Earth boundaries.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/li-soil-ph
- 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-central-land-liechtenstein-soil-ph-0-5-cm-615c67cc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TxhoZaaJAlIQbH5tEPn_d

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-central-land-liechtenstein-soil-ph-0-5-cm-615c67cc -d '<json body>'
```

Example prompt: What's the mean topsoil pH (0 to 5 cm depth) at latitude 47.14 and longitude 9.52 in Liechtenstein? I need the SoilGrids H2O pH value for that point.

## When to prefer this

Choose this endpoint when you need point-level topsoil pH data specifically for a location within Liechtenstein, sourced from SoilGrids global soil property maps. It is ideal for agricultural planning, environmental monitoring, and site assessment workflows that require a low-cost, per-call soil chemistry lookup with built-in geographic boundary validation.

## Known failure modes

- Coordinate outside Liechtenstein boundary — rejected before processing and payment
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Missing required latitude or longitude parameter — request error
- No SoilGrids data available for the given coordinate — null or error response

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

## Output

A numeric mean pH value (pH in H2O scale) representing the soil acidity at the 0–5 cm depth layer for the requested coordinate, sourced from SoilGrids data. The coordinate is validated against Liechtenstein's Natural Earth boundary before the result is returned; out-of-boundary coordinates are 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-central-land-liechtenstein-soil-ph-0-5-cm-615c67cc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mitteleuropa.halowerk.com](https://www.zero.xyz/host/mitteleuropa.halowerk.com/llms.txt)