# HALOWERK Central Land – Slovakia Tree Cover Share

> HALOWERK Central Land – Slovakia Tree Cover 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 tree cover for a given WGS84 coordinate within Slovakia.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/sk-tree-cover-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-slovakia-tree-cover-share-bf419379
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bDsRSmJgPDLOQAtgiXErO

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-slovakia-tree-cover-share-bf419379 -d '<json body>'
```

Example prompt: What share of the land around 48.7163° N, 19.1530° E in Slovakia is classified as tree cover according to ESA WorldCover 2021?

## When to prefer this

Choose this endpoint when you need satellite-derived tree cover fraction specifically for a point location in Slovakia, sourced from ESA WorldCover 2021. It is ideal for environmental analysis, land assessment, forestry planning, or ecological research workflows scoped to Slovakia. Prefer sibling endpoints on the same platform for other land cover classes (e.g. grassland) or for terrain metrics like elevation or slope.

## Known failure modes

- Coordinate outside Slovakia boundary — rejected before payment with a validation error
- Coordinate outside the published European coverage range (lat 34–72.5, lon −31.5–40.5) — rejected with a range error
- Missing or malformed latitude/longitude — returns a schema validation error
- Payment failure — x402 payment not completed, request not processed

## How this service works

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

## Output

A numeric share (fraction or percentage) indicating what proportion of ESA WorldCover 2021 pixels in the analysis area around the given coordinate are classified as tree cover. Results are only returned for coordinates validated within Slovakia's Natural Earth boundary.

## 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-slovakia-tree-cover-share-bf419379/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)