# HALOWERK Southern Land – Portugal Cropland Share

> HALOWERK Southern Land – Portugal 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 Portugal.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/pt-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-portugal-cropland-share-63c4c9f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ofnirl9RsQAyRy-MlXlRG

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-portugal-cropland-share-63c4c9f0 -d '<json body>'
```

Example prompt: What share of the land around coordinates 38.55°N, 8.00°W in Portugal is classified as cropland according to ESA WorldCover 2021?

## When to prefer this

Choose this endpoint when you need a precise, satellite-derived cropland coverage fraction for a specific point in Portugal, validated against official boundaries. It is ideal for agricultural due diligence, land classification, environmental baseline studies, or any workflow requiring ESA WorldCover 2021 land cover data for Portuguese coordinates. Prefer it over generic land cover APIs when Portugal-specific boundary validation and the x402 micropayment model are acceptable.

## Known failure modes

- Coordinate outside Portugal boundary — rejected before payment with an error indicating the point is outside the validated region
- Latitude or longitude out of the supported European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Invalid or missing coordinate fields — schema validation error
- Microservice unavailability or upstream ESA data access failure — server error response

## How this service works

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

## Output

A numeric share (fraction between 0 and 1, or percentage) of ESA WorldCover 2021 pixels in the analysis grid around the provided coordinate that are classified as cropland. The coordinate is validated against Portugal's Natural Earth boundary; requests outside Portugal 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-southern-land-portugal-cropland-share-63c4c9f0/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)