# HALOWERK Central Land – Austria Tree Cover Share

> HALOWERK Central Land – Austria 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 2026-09-13).

Returns the share of ESA WorldCover 2021 pixels classified as tree cover for a given coordinate within Austria.

## Facts

- Endpoint: POST https://mitteleuropa.halowerk.com/v1/at-tree-cover-share
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-central-land-austria-tree-cover-share-6aa23723
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ziqr3N-Nlv5y96xGh0URH

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-austria-tree-cover-share-6aa23723 -d '<json body>'
```

Example prompt: What share of the land around latitude 47.5, longitude 14.1 in Austria is classified as tree cover according to ESA WorldCover 2021?

## When to prefer this

Use this endpoint when you need satellite-derived tree cover land classification data specifically for locations within Austria, sourced from the authoritative ESA WorldCover 2021 dataset. Prefer this over generic land cover APIs when Austrian geographic scope and boundary validation are required, and when per-call micropayment pricing ($0.003 USDC) fits the use case. Ideal for environmental monitoring, forestry assessments, site surveys, and spatial analytics workflows targeting Austria.

## Known failure modes

- Coordinate outside Austria's Natural Earth boundary — request rejected before payment is processed
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Malformed or missing coordinate fields — schema validation failure
- Network or service timeout — retry recommended

## How this service works

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

## Output

A numeric value (share/fraction or percentage) indicating what proportion of ESA WorldCover 2021 pixels in the vicinity of the given coordinate are classified as tree cover, specific to locations within Austria'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-austria-tree-cover-share-6aa23723/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)