# HALOWERK Eastern Land – Croatia Cropland Share

> HALOWERK Eastern Land – Croatia Cropland 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 share of ESA WorldCover 2021 pixels classified as cropland for a given coordinate within Croatia.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/hr-cropland-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-croatia-cropland-share-e117553e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h2onjiIxJWVs8NbXah2mM

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-croatia-cropland-share-e117553e -d '<json body>'
```

Example prompt: What share of the land around latitude 45.81, longitude 15.97 in Croatia is classified as cropland according to ESA WorldCover 2021?

## When to prefer this

Use this endpoint when you need point-level cropland land-cover fractions specifically within Croatia, derived from the ESA WorldCover 2021 dataset. It is ideal for agricultural analysis, land suitability assessments, environmental baselines, or geospatial enrichment pipelines targeting Croatian locations. Prefer it over general-purpose land cover APIs when you need guaranteed Croatian boundary validation and a low-cost per-call pricing model.

## Known failure modes

- Coordinate outside Croatia's Natural Earth boundary — request rejected before payment
- Latitude or longitude out of published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Malformed or missing coordinate fields — input schema error
- Service unavailable or timeout — HTTP 5xx error

## How this service works

Share of ESA WorldCover 2021 pixels classified as cropland. The coordinate is validated against the Natural Earth boundary for Croatia; results outside it are rejected before payment.

## Output

A numeric value representing the share (fraction or percentage) of ESA WorldCover 2021 pixels classified as cropland within the analysis window around the given Croatian coordinate. Coordinates outside Croatia's Natural Earth boundary are rejected before processing.

## 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-croatia-cropland-share-e117553e/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)