# HALOWERK Southern Land – South-Facing Slope Orientation Index (Malta)

> HALOWERK Southern Land – South-Facing Slope Orientation Index (Malta) 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 a south-facing slope orientation index derived from aspect and slope data for a given coordinate within Malta.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/mt-solar-orientation
- 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-south-facing-slope-orientation-index-malta-b5ac40d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_k8Q9nwx9Bjc0RJ2g6jxDs

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-south-facing-slope-orientation-index-malta-b5ac40d4 -d '<json body>'
```

Example prompt: What's the south-facing slope orientation index for the coordinates 35.9 latitude, 14.4 longitude in Malta — I need to know how well that slope faces south for solar potential.

## When to prefer this

Use this endpoint when you need a precise, computed south-facing slope orientation index for a specific coordinate within Malta — particularly for solar site assessment, agricultural planning, or land suitability analysis. Prefer it over generic terrain APIs when you need the combined aspect-slope index specifically calibrated for south-facing orientation and validated against Maltese boundaries.

## Known failure modes

- Coordinate outside Malta's Natural Earth boundary — request rejected with a geographic validation error before payment
- Latitude or longitude outside the accepted European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Missing required latitude or longitude fields — request rejected with a parameter error
- Network timeout or service unavailability — HTTP 5xx error

## How this service works

South-facing slope orientation index derived from aspect and slope. The coordinate is validated against the Natural Earth boundary for Malta; results outside it are rejected before payment.

## Output

A numeric south-facing slope orientation index value derived from the terrain's aspect and slope at the queried coordinate. Higher values indicate stronger south-facing orientation, useful for assessing solar exposure potential. Coordinates outside Malta's Natural Earth boundary are rejected before any charge is incurred.

## 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-south-facing-slope-orientation-index-malta-b5ac40d4/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)