# HALOWERK Eastern Land – Cyprus Water & Wetland Share

> HALOWERK Eastern Land – Cyprus Water & Wetland Share is a paid API for AI agents from ostland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

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

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/cy-water-wetland-share
- 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-eastern-land-cyprus-water-wetland-share-545efa63
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M5fpkjVA1-O0LiSJoQ6HP

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-eastern-land-cyprus-water-wetland-share-545efa63 -d '<json body>'
```

Example prompt: What's the combined water, wetland, and mangrove land-cover share at latitude 34.85, longitude 33.05 in Cyprus? I need it for an environmental site assessment.

## When to prefer this

Use this endpoint when you need a precise, pay-per-query fractional land-cover statistic specifically for Cyprus locations, combining permanent water, herbaceous wetland, and mangrove classes from ESA WorldCover 2021. Prefer it over generic GIS raster services when you need pre-computed, boundary-validated pixel shares for Cyprus without managing your own satellite data pipelines. Choose it over broader European land-cover endpoints when only Cyprus coverage is needed and per-call cost efficiency matters.

## Known failure modes

- Coordinate outside Cyprus boundary: request rejected before payment is processed
- Latitude or longitude out of published European coverage range (lat 34–72.5, lon -31.5–40.5): validation error
- Malformed or missing latitude/longitude fields: schema validation failure
- No WorldCover pixels available for the grid cell: null or zero-value result
- Network or service timeout: HTTP 5xx error

## How this service works

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

## Output

A fractional share (proportion between 0 and 1, or as a percentage) representing the combined ESA WorldCover 2021 pixels classified as permanent water, herbaceous wetland, and mangrove within the analysis grid cell surrounding the submitted coordinate. The coordinate is validated against the Natural Earth boundary of Cyprus before the result is returned.

## 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-eastern-land-cyprus-water-wetland-share-545efa63/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ostland.halowerk.com](https://www.zero.xyz/host/ostland.halowerk.com/llms.txt)