# HALOWERK Atlantic Land – Ireland Soil Total Nitrogen (0-5 cm)

> HALOWERK Atlantic Land – Ireland Soil Total Nitrogen (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 mean SoilGrids total nitrogen for the 0-5 cm soil layer at a given coordinate within Ireland, validated against the Natural Earth Ireland boundary.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/ie-soil-nitrogen
- 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-total-nitrogen-0-5-cm-c0af9947
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YwbeKc31dlkvWOAhQPwe1

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-total-nitrogen-0-5-cm-c0af9947 -d '<json body>'
```

Example prompt: What's the mean total nitrogen in the top 5 cm of soil at latitude 53.3498 longitude -6.2603 in Ireland?

## When to prefer this

Choose this endpoint when you need topsoil total nitrogen data specifically for a location within Ireland, and want coordinate validation against the Natural Earth Ireland boundary before incurring any cost. Prefer this over generic SoilGrids API calls when you need a pay-per-use, agent-ready micro-endpoint with built-in boundary enforcement and a fixed low per-call price.

## Known failure modes

- Coordinate outside Ireland boundary — rejected before payment, returns a validation error
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Invalid or missing coordinate values — request rejected with input error
- Upstream SoilGrids data unavailable for the queried point — may return null or service error

## How this service works

Mean SoilGrids total nitrogen 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

Returns the mean total nitrogen value (from SoilGrids) for the 0-5 cm soil depth layer at the specified coordinate, provided the point falls within the validated 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-total-nitrogen-0-5-cm-c0af9947/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)