# HALOWERK Southern Land Italy Max Slope

> HALOWERK Southern Land Italy Max Slope is a paid API for AI agents from suedland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Returns the maximum adjacent-cell surface gradient (steepest slope) across the analysis grid for a coordinate within Italy

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/it-max-slope
- 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-southern-land-italy-max-slope-f7222f87
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5CxPg678kRFzAcYPKAS0o

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-max-slope-f7222f87 -d '<json body>'
```

Example prompt: What's the maximum surface slope gradient at latitude 40.85, longitude 14.27 in Italy? I need the steepest adjacent-cell gradient for that location.

## When to prefer this

Choose this endpoint when you specifically need maximum slope (steepest adjacent-cell gradient) for a point in Italy, especially for agricultural land assessment, construction suitability, or terrain analysis workflows. It is part of the HALOWERK Southern Land suite of Italy-specific geospatial indicators and pairs well with sibling endpoints for soil texture, land cover, and elevation statistics.

## Known failure modes

- Coordinate outside Italy boundary — request rejected before payment, no result returned
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Malformed or missing coordinate fields — schema validation error
- Payment failure via x402 protocol — request not processed

## How this service works

Maximum adjacent-cell surface gradient across the analysis grid. The coordinate is validated against the Natural Earth boundary for Italy; results outside it are rejected before payment.

## Output

A numeric value representing the maximum adjacent-cell surface gradient (steepest slope) computed across the analysis grid for the given coordinate inside Italy. Coordinates outside the Italy 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-southern-land-italy-max-slope-f7222f87/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)