# HALOWERK Southern Land – Spain Tree Cover Share

> HALOWERK Southern Land – Spain Tree Cover 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 tree cover for a given coordinate within Spain.

## Facts

- Endpoint: POST https://suedland.halowerk.com/v1/es-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-southern-land-spain-tree-cover-share-df8222dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KSAEY5e1s05Zw6ET26PwO

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-spain-tree-cover-share-df8222dc -d '<json body>'
```

Example prompt: What share of ESA WorldCover 2021 pixels around latitude 40.4168, longitude -3.7038 in Spain are classified as tree cover?

## When to prefer this

Choose this endpoint when you need a satellite-derived, pixel-level tree cover share specifically for a point location within Spain, based on the authoritative ESA WorldCover 2021 dataset. It is ideal for land assessment, environmental reporting, agricultural suitability analysis, or any workflow requiring a lightweight, pay-per-call geospatial lookup without spinning up a full GIS stack. Prefer sibling endpoints on the same provider for cropland share, grassland share, or soil properties at the same location.

## Known failure modes

- Coordinate outside Spain boundary — rejected before payment with a validation error
- Latitude or longitude outside published European coverage bounds (lat 34–72.5, lon -31.5–40.5) — schema validation error
- Malformed or missing coordinate fields — input schema error
- Network timeout or 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 Spain; 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 area around the submitted coordinate. The coordinate is validated against the Natural Earth boundary for Spain; requests outside Spain are rejected before any payment is charged.

## 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-spain-tree-cover-share-df8222dc/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)