# HALOWERK Land Compare – Local Background Deviation Ruggedness

> HALOWERK Land Compare – Local Background Deviation Ruggedness is a paid API for AI agents from landvergleich.halowerk.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-15).

Compares the 60-metre site terrain ruggedness measurement against the 1,000-metre local background ruggedness at the same European coordinate and returns the deviation between the two scales.

## Facts

- Endpoint: POST https://landvergleich.halowerk.com/v1/local-background-deviation-ruggedness
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-land-compare-local-background-deviation-ruggedness-21527622
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_X03kg-eFXqCaHGmx1AwJz

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-land-compare-local-background-deviation-ruggedness-21527622 -d '<json body>'
```

Example prompt: What is the terrain ruggedness deviation between the 60-metre site scale and the 1,000-metre local background at latitude 47.23, longitude 11.45 in the Austrian Alps?

## When to prefer this

Choose this endpoint when you need a dual-scale terrain ruggedness analysis for a single European point — specifically the contrast between fine-scale (60 m) site ruggedness and the broader (1,000 m) local background. Prefer it over generic DEM or slope APIs when the deviation metric itself is the target, e.g. for site screening, land classification, or ecological niche analysis within Europe.

## Known failure modes

- Coordinates outside European coverage bounds (latitude 34–72.5, longitude −31.5–40.5) will result in an out-of-range error
- Missing latitude or longitude parameters causes a validation error
- Coordinates on the boundary or in ocean areas with no terrain data may return null or error
- Service unavailability may result in HTTP 5xx errors

## How this service works

Compares the 60 metre site measurement for terrain ruggedness with a 1,000 metre local background measured from the same source and reports the deviation.

## Output

Returns the terrain ruggedness value at 60-metre resolution for the given coordinate, the corresponding 1,000-metre local background ruggedness derived from the same data source, and the numerical deviation (difference) between the two, indicating whether the site is more or less rugged than its broader landscape context.

## 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-land-compare-local-background-deviation-ruggedness-21527622/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from landvergleich.halowerk.com](https://www.zero.xyz/host/landvergleich.halowerk.com/llms.txt)