# HALOWERK Atlantic Land – Belgium Tree Cover Share

> HALOWERK Atlantic Land – Belgium Tree Cover Share is a paid API for AI agents from atlantikland.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 coordinate within Belgium.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/be-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-atlantic-land-belgium-tree-cover-share-1d5b6c40
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KXVtpnCvCta5OudP--l01

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-atlantic-land-belgium-tree-cover-share-1d5b6c40 -d '<json body>'
```

Example prompt: What share of the land around latitude 50.85, longitude 4.35 in Belgium is classified as tree cover according to ESA WorldCover 2021?

## When to prefer this

Use this endpoint when you specifically need ESA WorldCover 2021 tree cover data for a point location within Belgium, particularly for land assessment, environmental due diligence, ecological reporting, or real estate analysis. It is ideal when boundary-validated, pay-per-call geospatial lookups are preferred over subscription GIS services. Prefer sibling endpoints on the same platform when you also need complementary metrics like built-up share, grassland cover, soil properties, or slope data for the same Belgian coordinate.

## Known failure modes

- Coordinate outside Belgium boundary → rejected before payment, error indicating location is out of coverage area
- Coordinate within European input range but outside Belgium → boundary validation failure
- Latitude or longitude out of stated European range (lat 34–72.5, lon -31.5–40.5) → schema validation error
- Malformed or missing coordinate fields → input validation error
- Service unavailability → HTTP 5xx error

## How this service works

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

## Output

A numeric value representing the share (fraction or percentage) of ESA WorldCover 2021 pixels classified as tree cover within the analysis grid centered on the provided coordinate. The coordinate is pre-validated against Belgium's Natural Earth boundary; requests outside Belgium 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-atlantic-land-belgium-tree-cover-share-1d5b6c40/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from atlantikland.halowerk.com](https://www.zero.xyz/host/atlantikland.halowerk.com/llms.txt)