# HALOWERK Atlantic Land – Luxembourg Drainage Tendency

> HALOWERK Atlantic Land – Luxembourg Drainage Tendency 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 a relative runoff tendency score for a given WGS84 coordinate inside Luxembourg, derived from terrain slope and ruggedness metrics.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/lu-drainage-tendency
- 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-luxembourg-drainage-tendency-57f467f4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zU27RHmBpP4bqWu2pabXh

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-luxembourg-drainage-tendency-57f467f4 -d '<json body>'
```

Example prompt: What's the relative runoff tendency for the point at latitude 49.75, longitude 6.15 in Luxembourg — I need to know how prone to surface drainage that terrain is.

## When to prefer this

Choose this endpoint when you specifically need terrain-derived runoff or drainage tendency for a point location within Luxembourg, especially when integrating with land assessment, flood risk, or environmental due-diligence workflows. It is particularly useful when you need a lightweight, per-point score without spinning up a full GIS pipeline. Prefer it over generic GIS services when Luxembourg-specific boundary validation and pay-per-query pricing (x402 micropayment) are acceptable.

## Known failure modes

- Coordinate outside Luxembourg boundary — rejected with a validation error before payment is processed
- Coordinate outside the broader European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation failure
- Missing or malformed latitude/longitude values — request rejected with a parameter error
- Network timeout or service unavailability — HTTP 5xx response

## How this service works

Relative runoff tendency derived from slope and ruggedness. The coordinate is validated against the Natural Earth boundary for Luxembourg; results outside it are rejected before payment.

## Output

A numeric relative runoff tendency score for the queried WGS84 coordinate, derived from slope and terrain ruggedness within Luxembourg's boundary. Coordinates outside Luxembourg 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-luxembourg-drainage-tendency-57f467f4/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)