# HALOWERK Central Land – Slovenia Built-Up Share

> HALOWERK Central Land – Slovenia Built-Up Share is a paid API for AI agents from mitteleuropa.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 built-up land for a given coordinate within Slovenia.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/si-built-up-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-central-land-slovenia-built-up-share-5779cb41
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fsKwpSi2tOZ1kjvuZkvxq

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-central-land-slovenia-built-up-share-5779cb41 -d '<json body>'
```

Example prompt: What share of the land around latitude 46.0569, longitude 14.5058 in Slovenia is classified as built-up according to ESA WorldCover 2021?

## When to prefer this

Choose this endpoint when you need the built-up land cover fraction specifically for a point in Slovenia using ESA WorldCover 2021 classification. It is ideal for urban density analysis, site suitability assessment, or land use enrichment workflows where the coordinate is known to be within Slovenia. Use sibling endpoints for other land cover classes (grassland, dominant class) or terrain metrics.

## Known failure modes

- Coordinate outside Slovenia's Natural Earth boundary — request rejected before payment
- Latitude or longitude out of European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Invalid or missing coordinate fields — schema validation failure
- Service unavailable or upstream ESA data error — server error response

## How this service works

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

## Output

A numeric share (fraction or percentage) of ESA WorldCover 2021 pixels in the analysis area around the given coordinate that are classified as built-up land. The coordinate must fall within Slovenia's Natural Earth boundary or the request is rejected.

## 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-central-land-slovenia-built-up-share-5779cb41/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mitteleuropa.halowerk.com](https://www.zero.xyz/host/mitteleuropa.halowerk.com/llms.txt)