# HALOWERK Central Land – Liechtenstein Local Relief

> HALOWERK Central Land – Liechtenstein Local Relief is a paid API for AI agents from mitteleuropa.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns the local relief (difference between maximum and minimum sampled surface elevation) for a coordinate in Liechtenstein

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/li-local-relief
- 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-central-land-liechtenstein-local-relief-9610c5c9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9b4YBaTJsKgnd_-14F3Zd

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-central-land-liechtenstein-local-relief-9610c5c9 -d '<json body>'
```

Example prompt: What is the local relief — the difference between the highest and lowest surface elevation — at latitude 47.14 and longitude 9.52 in Liechtenstein?

## When to prefer this

Choose this endpoint when you need a quick, paid-per-call local relief metric specifically for a coordinate within Liechtenstein. It is ideal when you want a single scalar summarizing terrain roughness or elevation variability rather than a full DEM tile or elevation profile. Its built-in boundary validation ensures you won't be charged for out-of-scope coordinates.

## Known failure modes

- Coordinate outside Liechtenstein boundary — rejected before payment with an error indicating the point falls outside the validated region
- Coordinate outside the broader European coverage range (lat 34–72.5, lon -31.5–40.5) — rejected as invalid input
- Missing or malformed latitude/longitude — returns validation error
- Network timeout or service unavailability — generic HTTP 5xx error

## How this service works

Difference between maximum and minimum sampled surface elevation. The coordinate is validated against the Natural Earth boundary for Liechtenstein; results outside it are rejected before payment.

## Output

A numeric value representing the local relief in meters — the difference between the maximum and minimum sampled surface elevation in the analysis neighborhood around the given coordinate. Coordinates outside Liechtenstein's Natural Earth boundary are rejected before payment is charged.

## 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-central-land-liechtenstein-local-relief-9610c5c9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mitteleuropa.halowerk.com](https://www.zero.xyz/host/mitteleuropa.halowerk.com/llms.txt)