# HALOWERK Eastern Land – Hungary Cropland Share

> HALOWERK Eastern Land – Hungary 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 Hungary.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/hu-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-hungary-cropland-share-03c8bc3f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MPXfbJeaoQi9XY9KiMg_F

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-hungary-cropland-share-03c8bc3f -d '<json body>'
```

Example prompt: What share of the land around latitude 47.49 and longitude 19.04 in Hungary is classified as cropland according to ESA WorldCover 2021?

## When to prefer this

Use this endpoint when you specifically need ESA WorldCover 2021 cropland pixel share for a coordinate confirmed to be within Hungary. It is preferable when you need a validated, boundary-checked result and are willing to pay per-call via x402; it avoids you having to download and process the full WorldCover raster yourself. Choose it over generic land cover APIs when you need Hungary-specific validation and cropland-specific classification from the 2021 WorldCover dataset.

## Known failure modes

- Coordinate outside Hungary boundary – rejected before payment with a validation error
- Coordinate outside European coverage bounds (lat 34–72.5, lon -31.5–40.5) – rejected with out-of-range error
- Malformed input (missing or non-numeric latitude/longitude) – returns schema validation error
- Service unavailable – upstream data retrieval failure

## How this service works

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

## Output

A numeric share (fraction between 0 and 1, or percentage) indicating the proportion of ESA WorldCover 2021 pixels classified as cropland within the analysis window around the given coordinate inside Hungary. Coordinates outside Hungary's Natural Earth boundary are rejected before payment is processed.

## 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-hungary-cropland-share-03c8bc3f/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)