# HALOWERK Atlantic Land – Ireland Terrain Ruggedness Index

> HALOWERK Atlantic Land – Ireland Terrain Ruggedness Index is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns the standard deviation of sampled surface elevations (terrain ruggedness index) for a given coordinate within Ireland, validated against the Natural Earth Ireland boundary.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/ie-ruggedness
- Price: $0.003/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-terrain-ruggedness-index-ffd85da0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4_7DjFZS9w5UwXe0-KW31

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-terrain-ruggedness-index-ffd85da0 -d '<json body>'
```

Example prompt: What's the terrain ruggedness index at latitude 52.1, longitude -9.4 in Ireland — I need the standard deviation of surface elevations for that spot.

## When to prefer this

Choose this endpoint when you need a precise, per-point terrain ruggedness metric (elevation standard deviation) for a specific location within Ireland. It is well-suited for land analysis pipelines, site feasibility checks, or geographic enrichment workflows where Irish terrain complexity is a key variable. Prefer it over general DEM APIs when you need Ireland-specific boundary validation and a pay-per-call model with no subscription overhead.

## Known failure modes

- Coordinate outside Ireland boundary — rejected before payment with a validation error
- Latitude or longitude out of the published European coverage range (34–72.5°N, 31.5°W–40.5°E) — schema validation failure
- Missing or malformed latitude/longitude fields — request rejected with input error
- Temporary data source unavailability — may return a 5xx error

## How this service works

Standard deviation of sampled surface elevations. The coordinate is validated against the Natural Earth boundary for Ireland; results outside it are rejected before payment.

## Output

A numeric value representing the standard deviation of sampled surface elevations at the requested coordinate, expressed as the terrain ruggedness index. Coordinates outside the Natural Earth boundary for Ireland are rejected before the result is returned or payment is processed.

## 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-terrain-ruggedness-index-ffd85da0/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)