# HALOWERK Atlantic Land – France Aspect Direction

> HALOWERK Atlantic Land – France Aspect Direction is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Returns the circular direction of the dominant surface aspect (slope-facing direction), clockwise from north, for a given coordinate within France.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/fr-aspect
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-atlantic-land-france-aspect-direction-55ee90b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NDVZ-UECmtBtCHKxCKymW

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-france-aspect-direction-55ee90b0 -d '<json body>'
```

Example prompt: What direction does the terrain slope toward at latitude 44.8, longitude 2.1 in France — give me the aspect bearing clockwise from north.

## When to prefer this

Use this endpoint when you need the terrain aspect (slope-facing direction) specifically for a point within France, and you want a validated, boundary-checked result with pay-per-call pricing. Prefer this over generic elevation or slope APIs when you need the circular directional component of terrain orientation (not just slope magnitude) and when France coverage with boundary validation is required.

## Known failure modes

- Coordinate outside France boundary — request rejected before payment, returning a validation error
- Latitude or longitude outside the allowed European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation failure
- Invalid coordinate format or missing required fields — returns input validation error
- Service unavailable or upstream DEM data issue — may return a 5xx error

## How this service works

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

## Output

A numeric value representing the circular direction (in degrees, clockwise from north) of the dominant surface slope gradient at the queried location within France. Coordinates outside the France boundary 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-france-aspect-direction-55ee90b0/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)