# HALOWERK Atlantic Land – Luxembourg Surface Elevation (Copernicus DEM GLO-30)

> HALOWERK Atlantic Land – Luxembourg Surface Elevation (Copernicus DEM GLO-30) is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns bilinear-interpolated surface elevation in metres for a WGS84 coordinate within Luxembourg, derived from the Copernicus DEM GLO-30 dataset.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/lu-elevation
- 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-atlantic-land-luxembourg-surface-elevation-copernicus-dem-fb3ec0d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_m0_BzFuOEdbAGTZqr0Auy

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-luxembourg-surface-elevation-copernicus-dem-fb3ec0d0 -d '<json body>'
```

Example prompt: What's the surface elevation at latitude 49.6117, longitude 6.1319 inside Luxembourg — can you pull it from the Copernicus GLO-30 DEM?

## When to prefer this

Choose this endpoint when you need high-resolution (GLO-30, ~30 m) surface elevation specifically for a coordinate within Luxembourg, especially if you are already using other HALOWERK Atlantic Land endpoints (soil, slope, runoff) for multi-variable land analysis in Luxembourg. It is preferable over generic global DEM APIs when Luxembourg boundary validation and per-query micropayment pricing are acceptable constraints.

## Known failure modes

- Coordinate outside Luxembourg boundary — request rejected, no charge incurred
- Latitude or longitude outside the European coverage bounds (34–72.5°N, -31.5–40.5°E) — validation error
- Malformed or missing latitude/longitude fields — schema validation error
- Payment failure via x402 protocol — request not processed

## How this service works

Bilinear surface elevation from Copernicus DEM GLO-30. The coordinate is validated against the Natural Earth boundary for Luxembourg; results outside it are rejected before payment.

## Output

A surface elevation value in metres derived via bilinear interpolation from the Copernicus DEM GLO-30 30-metre resolution dataset for the requested WGS84 coordinate within Luxembourg. Coordinates outside the Luxembourg 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-luxembourg-surface-elevation-copernicus-dem-fb3ec0d0/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)