# HALOWERK Central Land – Liechtenstein Aspect Direction

> HALOWERK Central Land – Liechtenstein Aspect Direction is a paid API for AI agents from mitteleuropa.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-16).

Returns the circular direction (in degrees, clockwise from north) of the dominant surface gradient at a given coordinate within Liechtenstein.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/li-aspect
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-central-land-liechtenstein-aspect-direction-1c3a5354
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1jY9k3RFBbe2ym2AKBxD3

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-aspect-direction-1c3a5354 -d '<json body>'
```

Example prompt: What is the dominant surface aspect direction (clockwise from north) at latitude 47.14 and longitude 9.52 in Liechtenstein?

## When to prefer this

Choose this endpoint when you need terrain aspect (slope-facing direction) specifically for a coordinate within Liechtenstein, and require boundary-validated results that are rejected before billing if out of scope. It is part of a suite of land-surface metrics for central European terrain and is ideal for geospatial enrichment workflows, solar analysis, agriculture, or outdoor/environmental applications scoped to Liechtenstein.

## Known failure modes

- Coordinate outside Liechtenstein boundary — request rejected before payment
- Latitude or longitude outside European coverage range (34–72.5°N, 31.5°W–40.5°E) — validation error
- Missing or malformed latitude/longitude fields — schema validation error
- No valid elevation data available for the coordinate — possible null or error response

## How this service works

Circular direction of the dominant surface gradient, clockwise from north. The coordinate is validated against the Natural Earth boundary for Liechtenstein; results outside it are rejected before payment.

## Output

Returns a numeric value in degrees representing the circular direction of the dominant surface gradient at the queried coordinate, measured clockwise from north. Coordinates outside the Liechtenstein Natural Earth boundary are rejected before any 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-central-land-liechtenstein-aspect-direction-1c3a5354/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)