# HALOWERK Southern Land Greece Cropland Share

> HALOWERK Southern Land Greece Cropland Share is a paid API for AI agents from suedland.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 Greece.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/gr-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-southern-land-greece-cropland-share-e05cacb4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fc16W-kNenE9eNN9kx3ir

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-southern-land-greece-cropland-share-e05cacb4 -d '<json body>'
```

Example prompt: What share of the land around latitude 37.98, longitude 23.73 in Greece is classified as cropland according to ESA WorldCover 2021?

## When to prefer this

Use this endpoint when you need a precise, data-backed measure of agricultural land cover at a specific point in Greece, derived from the authoritative ESA WorldCover 2021 dataset. Prefer it over generic land cover APIs when the target country is definitively Greece and you need a cropland-specific metric rather than a full land cover classification. It is especially useful for agricultural due diligence, site suitability assessments, and environmental research workflows that require pay-per-query pricing with no subscription overhead.

## Known failure modes

- Coordinate outside Greece boundary — request rejected before payment, coordinate validation error returned
- Coordinate outside the European coverage bounding box (lat 34–72.5, lon -31.5–40.5) — schema validation failure
- Malformed latitude or longitude values — input validation error
- Service unavailability or upstream ESA data access failure — 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 Greece; results outside it are rejected before payment.

## Output

A numeric share (fraction or percentage) representing how much of the ESA WorldCover 2021 pixel grid in the analysis area around the given coordinate is classified as cropland. The coordinate must fall within the validated boundary of Greece; requests outside that boundary are rejected before any charge is incurred.

## 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-southern-land-greece-cropland-share-e05cacb4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from suedland.halowerk.com](https://www.zero.xyz/host/suedland.halowerk.com/llms.txt)