# HALOWERK Europe Land – Grassland Share (Point, 60m Grid)

> HALOWERK Europe Land – Grassland Share (Point, 60m Grid) is a paid API for AI agents from euroland.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 grassland within a 60-metre local analysis grid around a given European coordinate.

## Facts

- Endpoint: POST https://euroland.halowerk.com/v1/europe-grassland-share-point
- 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-europe-land-grassland-share-point-60m-grid-2bc0f6ae
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C-9KVlIk8YVRv2VgHFCf1

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-europe-land-grassland-share-point-60m-grid-2bc0f6ae -d '<json body>'
```

Example prompt: What share of the land within 60 metres of latitude 48.2 and longitude 16.4 in Europe is classified as grassland according to ESA WorldCover 2021?

## When to prefer this

Choose this endpoint when you need point-level grassland land cover fraction from a standardised 60-metre analysis grid for a specific WGS84 coordinate within Europe, backed by ESA WorldCover 2021 classification. Prefer it over polygon or circular-buffer variants when you have a precise coordinate and need a compact local estimate rather than area-based aggregation.

## Known failure modes

- Coordinates outside the European coverage bounding box (lat 34–72.5, lon -31.5–40.5) return an error or empty result
- Malformed or missing latitude/longitude fields cause a validation error
- Coastal or border coordinates may fall partially outside coverage, reducing pixel count
- Service unavailability or payment failure (x402) causes a non-200 response

## How this service works

Share of ESA WorldCover 2021 pixels classified as grassland. The service evaluates a 60 metre local analysis grid around one coordinate and returns standardized units across all 30 covered countries.

## Output

A standardized numeric value representing the fraction (share) of ESA WorldCover 2021 pixels classified as grassland within the 60-metre local analysis grid centred on the supplied coordinate, expressed in consistent units across all 30 covered European countries.

## 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-europe-land-grassland-share-point-60m-grid-2bc0f6ae/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from euroland.halowerk.com](https://www.zero.xyz/host/euroland.halowerk.com/llms.txt)