# HALOWERK Eastern Land – Hungary Soil Bulk Density (0-5 cm)

> HALOWERK Eastern Land – Hungary Soil Bulk Density (0-5 cm) is a paid API for AI agents from ostland.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns the mean SoilGrids bulk density for the 0-5 cm soil layer at a given WGS84 coordinate within Hungary.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/hu-soil-bulk-density
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-eastern-land-hungary-soil-bulk-density-0-5-cm-562a9408
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Fh9RbTXYeiIiqWQKkq324

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-eastern-land-hungary-soil-bulk-density-0-5-cm-562a9408 -d '<json body>'
```

Example prompt: What's the mean soil bulk density for the top 5 centimeters at latitude 47.49, longitude 19.04 in Hungary?

## When to prefer this

Choose this endpoint when you specifically need SoilGrids mean bulk density for the 0-5 cm soil layer at a point location within Hungary. It is purpose-built for Hungarian coordinates, enforces boundary validation before billing, and is priced per-call at a low unit cost — ideal for agentic workflows that need to enrich land parcels or farm coordinates with topsoil physical properties without building custom SoilGrids integrations.

## Known failure modes

- Coordinate outside Hungary boundary: request is rejected with a validation error before payment is processed
- Coordinate within the broader European coverage bounding box but outside Hungary: rejected by Natural Earth boundary check
- Missing or malformed latitude/longitude input: returns schema validation error
- Coordinate in the sea or otherwise outside any valid land area: may return a rejection or null value
- Service unavailable or upstream SoilGrids data not accessible: returns a 5xx error

## How this service works

Mean SoilGrids bulk density for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Hungary; results outside it are rejected before payment.

## Output

Returns the mean SoilGrids bulk density value (g/cm³ or cg/cm³ depending on SoilGrids convention) for the 0-5 cm topsoil layer at the specified coordinate, provided the coordinate falls within Hungary's boundary. Coordinates outside Hungary are rejected before any data is returned.

## 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-eastern-land-hungary-soil-bulk-density-0-5-cm-562a9408/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ostland.halowerk.com](https://www.zero.xyz/host/ostland.halowerk.com/llms.txt)