# HALOWERK Eastern Land Romania Water & Wetland Share

> HALOWERK Eastern Land Romania 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 share of permanent water, herbaceous wetland, and mangrove land-cover classes for a given coordinate within Romania.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/ro-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-romania-water-wetland-share-501578e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vfvkJaTe4Ow0O5d7L_D1i

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-romania-water-wetland-share-501578e2 -d '<json body>'
```

Example prompt: What's the combined water, wetland, and mangrove land-cover share at latitude 44.43, longitude 26.10 in Romania?

## When to prefer this

Choose this endpoint when you need the combined water, herbaceous wetland, and mangrove land-cover fraction specifically for a point inside Romania, using ESA WorldCover 2021 classification. It is ideal for environmental baseline assessments, conservation planning, flood risk screening, or land suitability analysis within Romania. It is not suitable for coordinates outside Romania or for retrieving individual class fractions separately.

## Known failure modes

- Coordinate outside Romania boundary — request rejected with validation error before processing
- Latitude or longitude outside the European coverage range (34–72.5°N, -31.5–40.5°E) — schema validation failure
- Malformed or missing latitude/longitude fields — input validation error
- Payment failure or insufficient USDC balance — x402 payment protocol error
- No land-cover data available for the given pixel — null or zero result returned

## How this service works

Combined share of permanent water, herbaceous wetland and mangrove classes. The coordinate is validated against the Natural Earth boundary for Romania; 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, and mangrove at the queried coordinate within Romania. Coordinates outside the Romanian boundary are rejected before any 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-romania-water-wetland-share-501578e2/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)