# HALOWERK Southern Land – Italy Local Relief

> HALOWERK Southern Land – Italy Local Relief 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 the local topographic relief (max minus min sampled surface elevation) for a given coordinate in Italy, validated against Natural Earth Italy boundaries.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/it-local-relief
- 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-local-relief-8978ba77
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_b_IDwgF4r6gxggOB0f84q

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-local-relief-8978ba77 -d '<json body>'
```

Example prompt: What's the local relief — the difference between the highest and lowest surface elevations — at latitude 43.7 and longitude 11.25 in Italy?

## When to prefer this

Use this endpoint when you specifically need local topographic relief (max–min elevation spread) for a point within Italy, and want boundary validation built in before payment. Prefer it over generic DEM APIs when working within an Italy-scoped workflow or alongside other HALOWERK Southern Land Italy-validated terrain metrics (slope, gradient, texture, land cover).

## Known failure modes

- Coordinate outside Italy boundary — rejected with validation error before payment is charged
- Latitude or longitude outside published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Malformed or missing input coordinates — 400-level error
- Service unavailable or timeout — 5xx error

## How this service works

Difference between maximum and minimum sampled surface elevation. The coordinate is validated against the Natural Earth boundary for Italy; results outside it are rejected before payment.

## Output

A numeric value representing the local topographic relief in meters — the difference between the maximum and minimum sampled surface elevations within the analysis area around the given coordinate. Returns an error if the coordinate falls outside Italy's Natural Earth boundary.

## 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-local-relief-8978ba77/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)