# HALOWERK Europe Land – Terrain Aspect (Point, 60m)

> HALOWERK Europe Land – Terrain Aspect (Point, 60m) is a paid API for AI agents from euroland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns the circular direction of the dominant surface gradient (terrain aspect, clockwise from north) for a WGS84 coordinate using a 60-metre analysis grid across 30 European countries.

## Facts

- Endpoint: POST https://euroland.halowerk.com/v1/europe-aspect-point
- 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-europe-land-terrain-aspect-point-60m-b51d991b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_96YKGfALRfBxxNBi3exps

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-europe-land-terrain-aspect-point-60m-b51d991b -d '<json body>'
```

Example prompt: What direction does the terrain face — in degrees clockwise from north — at latitude 46.85, longitude 9.53 in the Swiss Alps? Use the 60-metre local analysis grid.

## When to prefer this

Choose this endpoint when you need a precise, point-level terrain aspect value for any land location within Europe using a fine 60-metre analysis window. It is ideal for site-specific assessments (solar, agriculture, ecology, construction) where local slope orientation matters and you have a single coordinate. Prefer sibling endpoints for polygon inputs, broader radius analysis, or when other land surface variables (land cover, soil pH, wetness) are needed instead.

## Known failure modes

- Coordinate outside European coverage bounds (lat 34–72.5, lon -31.5–40.5) returns an error or null result
- Coordinate over open sea or non-land area may yield no meaningful aspect value
- Payment failure or insufficient USDC balance blocks the request
- Flat terrain with no dominant gradient may return undefined or a special null-aspect indicator
- Malformed or missing latitude/longitude fields return a validation error

## How this service works

Circular direction of the dominant surface gradient, clockwise from north. The service evaluates a 60 metre local analysis grid around one coordinate and returns standardized units across all 30 covered countries.

## Output

Returns a standardized numeric value representing the circular direction of the dominant surface gradient in degrees clockwise from north (0–360°), computed over a 60-metre circular analysis grid centred on the supplied coordinate. Coverage spans 30 European countries within the bounds latitude 34–72.5°N, longitude 31.5°W–40.5°E.

## 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-europe-land-terrain-aspect-point-60m-b51d991b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from euroland.halowerk.com](https://www.zero.xyz/host/euroland.halowerk.com/llms.txt)