# HALOWERK Southern Land Italy Elevation

> HALOWERK Southern Land Italy Elevation is a paid API for AI agents from suedland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns bilinear-interpolated surface elevation (metres) for a WGS84 coordinate in Italy using Copernicus DEM GLO-30, rejecting coordinates outside the Italian boundary before charging.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/it-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-southern-land-italy-elevation-ead5da0e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8l6bptJ0J3vnVuyNCrHZI

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-southern-land-italy-elevation-ead5da0e -d '<json body>'
```

Example prompt: What is the surface elevation at latitude 43.7696 and longitude 11.2558 in Italy according to the Copernicus DEM GLO-30?

## When to prefer this

Choose this endpoint when you need a single-point surface elevation reading specifically within Italy, backed by the high-resolution Copernicus GLO-30 DEM (approximately 30 m ground resolution), with built-in boundary validation ensuring you are only charged for valid Italian coordinates. Prefer it over generic elevation APIs when Italy-scoped accuracy and per-call micropayment pricing ($0.003 USDC) matter, or when integrating with other HALOWERK Southern Land endpoints for multi-variable Italian land analysis.

## Known failure modes

- Coordinate outside Italy boundary — rejected before payment with a validation error
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon −31.5–40.5) — rejected with schema validation error
- Malformed or missing latitude/longitude fields — returns 400 Bad Request
- Service unavailable or DEM data gap — returns 5xx error
- Payment failure via x402 protocol — call not processed

## How this service works

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

## Output

A numeric surface elevation value in metres derived from bilinear interpolation of the Copernicus DEM GLO-30 grid at the requested coordinate. The coordinate is first validated against the Natural Earth boundary for Italy; calls with coordinates outside Italy 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-southern-land-italy-elevation-ead5da0e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from suedland.halowerk.com](https://www.zero.xyz/host/suedland.halowerk.com/llms.txt)