# HALOWERK Central Land – Liechtenstein Soil Organic Carbon (0–5 cm)

> HALOWERK Central Land – Liechtenstein Soil Organic Carbon (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 organic carbon content for the 0–5 cm soil layer at a given WGS84 coordinate, validated against Liechtenstein's Natural Earth boundary.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/li-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-central-land-liechtenstein-soil-organic-carbon-0-5-cm-eeb8149f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iHifv_qnpQ7MzzON7APbg

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-organic-carbon-0-5-cm-eeb8149f -d '<json body>'
```

Example prompt: What's the mean organic carbon content in the top 5 cm of soil at latitude 47.14 and longitude 9.52 in Liechtenstein?

## When to prefer this

Use this endpoint when you need point-level SoilGrids organic carbon data specifically for Liechtenstein, with built-in boundary validation ensuring you only pay for valid results. It is ideal for land assessment, environmental monitoring, or agricultural analysis workflows where Liechtenstein coverage is required and you want automated rejection of out-of-bounds queries. Prefer sibling endpoints on the same host for co-located soil properties (pH, silt, CEC) to build a multi-variable soil profile cheaply.

## Known failure modes

- Coordinate outside Liechtenstein boundary — rejected before payment with a boundary validation error
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Missing latitude or longitude in request body — 400 bad request
- SoilGrids upstream data unavailable — service error or degraded response
- Coordinate on the exact boundary edge — may be rejected depending on boundary precision

## How this service works

Mean SoilGrids organic carbon 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 value representing the mean SoilGrids organic carbon content (g/kg or dg/kg depending on SoilGrids convention) for the 0–5 cm depth layer at the queried coordinate, returned only if the coordinate falls within the validated Natural Earth boundary for Liechtenstein. Requests outside that 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-central-land-liechtenstein-soil-organic-carbon-0-5-cm-eeb8149f/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)