# HALOWERK Atlantic Land – Netherlands Solar Orientation Index

> HALOWERK Atlantic Land – Netherlands Solar Orientation Index is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Returns a south-facing slope orientation index derived from aspect and slope for a given coordinate within the Netherlands.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/nl-solar-orientation
- 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-atlantic-land-netherlands-solar-orientation-index-1cb27758
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WMBA5t6Vn2yCiUzebVcBa

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-netherlands-solar-orientation-index-1cb27758 -d '<json body>'
```

Example prompt: What's the south-facing solar orientation index for the location at latitude 52.35, longitude 4.91 in the Netherlands? I'm evaluating terrain suitability for solar panels.

## When to prefer this

Choose this endpoint when you need a pre-computed, terrain-derived solar orientation score specifically for coordinates within the Netherlands, particularly for site suitability screening, solar energy prospecting, or land assessment workflows where aspect-slope composite indexing is required without running a full GIS pipeline.

## Known failure modes

- Coordinate outside Netherlands boundary (validated against Natural Earth boundary) — request rejected without charge
- Latitude or longitude outside European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Missing required latitude or longitude field — request error
- Payment failure via x402 protocol — request not processed

## How this service works

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

## Output

A numeric south-facing slope orientation index derived from terrain aspect and slope data for the queried coordinate. Higher values indicate stronger south-facing exposure, useful for solar energy suitability assessment. Coordinates outside the Netherlands 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-netherlands-solar-orientation-index-1cb27758/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)