# HALOWERK Central Land – Slovakia Water & Wetland Share

> HALOWERK Central Land – Slovakia Water & Wetland Share is a paid API for AI agents from mitteleuropa.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Returns the combined land-cover share of permanent water, herbaceous wetland, and mangrove classes for a coordinate within Slovakia, derived from ESA WorldCover 2021 data.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/sk-water-wetland-share
- 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-central-land-slovakia-water-wetland-share-2ca305c9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HitGWlFBHcOWmxRQVhdoR

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-central-land-slovakia-water-wetland-share-2ca305c9 -d '<json body>'
```

Example prompt: What's the combined water and wetland land-cover share at latitude 48.65, longitude 19.10 in Slovakia? I need to know how much of that area is classified as permanent water, herbaceous wetland, or mangrove.

## When to prefer this

Use this endpoint when you specifically need ESA WorldCover-based combined water and wetland coverage statistics for a point in Slovakia. It is the right choice for environmental screening, hydrological baseline studies, land-use analysis, or risk assessment pipelines that require a validated, pay-per-call lookup restricted to Slovak territory. Prefer it over generic GIS APIs when you need a low-cost, per-coordinate water/wetland share without maintaining your own raster processing infrastructure.

## Known failure modes

- Coordinate outside Slovakia boundary — rejected before processing with a geographic validation error
- Latitude or longitude out of the declared European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Malformed or missing latitude/longitude parameters — input validation error
- Temporary upstream data unavailability — server-side error response

## How this service works

Combined share of permanent water, herbaceous wetland and mangrove classes. The coordinate is validated against the Natural Earth boundary for Slovakia; results outside it are rejected before payment.

## Output

A numeric share (fraction or percentage) representing the combined proportion of ESA WorldCover 2021 pixels classified as permanent water, herbaceous wetland, or mangrove within the analysis grid centered on the provided coordinate. The coordinate is validated against the Natural Earth boundary of Slovakia before the result is returned; requests outside Slovakia are rejected.

## 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-central-land-slovakia-water-wetland-share-2ca305c9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mitteleuropa.halowerk.com](https://www.zero.xyz/host/mitteleuropa.halowerk.com/llms.txt)