# HALOWERK Europe Land – Surface Elevation (Point)

> HALOWERK Europe Land – Surface Elevation (Point) 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 bilinear surface elevation in standardized units for a single WGS84 coordinate using Copernicus DEM GLO-30 data evaluated over a 60-metre local analysis grid.

## Facts

- Endpoint: POST https://euroland.halowerk.com/v1/europe-elevation-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-surface-elevation-point-e09198a8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yZwgsM4eYR-puGRfsIaGI

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-surface-elevation-point-e09198a8 -d '<json body>'
```

Example prompt: What is the surface elevation at latitude 47.37, longitude 8.54 in Switzerland? I need the Copernicus DEM GLO-30 value evaluated on a 60-metre grid.

## When to prefer this

Choose this endpoint when you need a single-point surface elevation value within Europe sourced from the high-quality Copernicus DEM GLO-30 dataset with 60-metre local grid evaluation. Prefer it over global elevation APIs when European coverage accuracy and standardized units are required, and when you are already using the HALOWERK Europe Land suite for other land-surface attributes.

## Known failure modes

- Coordinate outside the European coverage bounds (lat 34–72.5, lon −31.5–40.5) returns an error or empty result
- Missing or malformed latitude/longitude inputs cause validation errors
- Payment failure or insufficient USDC balance blocks the request via x402 protocol
- Network timeout or service unavailability returns a 5xx error

## How this service works

Bilinear surface elevation from Copernicus DEM GLO-30. The service evaluates a 60 metre local analysis grid around one coordinate and returns standardized units across all 30 covered countries.

## Output

A surface elevation value derived from Copernicus DEM GLO-30, computed using bilinear interpolation over a 60-metre local analysis grid centered on the supplied coordinate, returned in standardized units. Coverage spans 30 European countries within latitude 34–72.5°N and longitude −31.5–40.5°E.

## 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-surface-elevation-point-e09198a8/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)