# HALOWERK Atlantic Land – Belgium Local Relief

> HALOWERK Atlantic Land – Belgium Local Relief is a paid API for AI agents from atlantikland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns the local relief (difference between maximum and minimum sampled surface elevation) for a given WGS84 coordinate within Belgium.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/be-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-atlantic-land-belgium-local-relief-c056b79e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kd8ga3_NqDJPq3uK1YzWa

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-belgium-local-relief-c056b79e -d '<json body>'
```

Example prompt: What's the local relief — the difference between the highest and lowest surface elevations — at latitude 50.85 and longitude 4.35 in Belgium?

## When to prefer this

Use this endpoint when you need a precise local relief metric (elevation range) for a specific point in Belgium, particularly for land assessment, terrain analysis, agricultural suitability, flood risk screening, or real estate due diligence workflows. Prefer this over general DEM APIs when you need Belgium-validated, pay-per-query access without managing raster datasets yourself.

## Known failure modes

- Coordinate outside Belgium boundary: rejected with an error before payment, no charge applied
- Latitude or longitude outside the broader European coverage range (lat 34–72.5, lon -31.5–40.5): validation error
- Missing required latitude or longitude parameter: schema validation error
- Ambiguous or malformed numeric inputs: parsing error

## How this service works

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

## Output

A numeric value representing the local relief in meters — specifically the difference between the maximum and minimum sampled surface elevation across the analysis grid cell centered on the provided coordinate. Coordinates outside Belgium's Natural Earth 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-belgium-local-relief-c056b79e/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)