# HALOWERK Atlantic Land – Ireland Soil Cation Exchange Capacity (0–5 cm)

> HALOWERK Atlantic Land – Ireland Soil Cation Exchange Capacity (0–5 cm) is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns the mean SoilGrids cation exchange capacity (CEC) for the 0–5 cm topsoil layer at a given coordinate within Ireland.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/ie-soil-cec
- 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-atlantic-land-ireland-soil-cation-exchange-capacity-0-5-cm-06949b0f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YzM8LGp09fLvgaRIybg0h

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-atlantic-land-ireland-soil-cation-exchange-capacity-0-5-cm-06949b0f -d '<json body>'
```

Example prompt: What's the topsoil cation exchange capacity for the 0–5 cm layer at latitude 53.35, longitude -6.26 in Ireland? I need the SoilGrids CEC value for that spot.

## When to prefer this

Choose this endpoint when you need point-level soil CEC data specifically for locations within Ireland, backed by SoilGrids (ISRIC) methodology, with built-in geographic boundary enforcement so out-of-scope coordinates are rejected before billing. Prefer it over generic SoilGrids API calls when you want a pay-per-query microservice with no subscription overhead and guaranteed Ireland-scoped validation.

## Known failure modes

- Coordinate outside Ireland boundary – request rejected before payment with a boundary validation error
- Latitude or longitude outside the European coverage bounds (lat 34–72.5, lon -31.5–40.5) – schema validation error
- Missing or malformed latitude/longitude – 400-level error
- Payment failure via x402 protocol – request not processed
- SoilGrids upstream data unavailable – service may return 503 or equivalent error

## How this service works

Mean SoilGrids cation exchange capacity for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Ireland; results outside it are rejected before payment.

## Output

A numeric mean cation exchange capacity value (cmolc/kg) for the 0–5 cm topsoil layer at the queried coordinate, derived from SoilGrids data, validated to fall within the Ireland boundary. Coordinates outside Ireland 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-atlantic-land-ireland-soil-cation-exchange-capacity-0-5-cm-06949b0f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from atlantikland.halowerk.com](https://www.zero.xyz/host/atlantikland.halowerk.com/llms.txt)