# HALOWERK Eastern Land – Cyprus Soil Organic Carbon (0-5 cm)

> HALOWERK Eastern Land – Cyprus Soil Organic Carbon (0-5 cm) is a paid API for AI agents from ostland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns the mean SoilGrids organic carbon value for the 0-5 cm depth layer at a given coordinate within Cyprus, validated against Natural Earth boundaries.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/cy-soil-organic-carbon
- 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-eastern-land-cyprus-soil-organic-carbon-0-5-cm-2aec8777
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EYgvcGC-JDC6GKLSAo_kv

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-eastern-land-cyprus-soil-organic-carbon-0-5-cm-2aec8777 -d '<json body>'
```

Example prompt: What's the mean soil organic carbon in the 0-5 cm layer at latitude 34.92, longitude 33.05 in Cyprus?

## When to prefer this

Use this endpoint when you need precise, point-level SoilGrids organic carbon data specifically for locations within Cyprus and are willing to pay per-call. Prefer it over general soil APIs when you need Cyprus-boundary-validated results and SoilGrids-sourced mean values for the 0-5 cm layer specifically.

## Known failure modes

- Coordinate falls outside Cyprus Natural Earth boundary — request rejected with an out-of-bounds error
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Missing required latitude or longitude field — schema validation error
- Payment failure via x402 protocol — call not processed

## How this service works

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

## Output

A numeric mean soil organic carbon value for the 0-5 cm depth layer at the queried coordinate, sourced from SoilGrids. Coordinates outside the Natural Earth boundary for Cyprus are rejected before any result is returned.

## 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-eastern-land-cyprus-soil-organic-carbon-0-5-cm-2aec8777/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ostland.halowerk.com](https://www.zero.xyz/host/ostland.halowerk.com/llms.txt)