# HALOWERK Eastern Land – Romania Soil Silt Fraction (0-5 cm)

> HALOWERK Eastern Land – Romania Soil Silt Fraction (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 silt fraction for the 0-5 cm soil layer at a given WGS84 coordinate within Romania's boundary.

## Facts

- Endpoint: POST https://ostland.halowerk.com/v1/ro-soil-silt
- 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-romania-soil-silt-fraction-0-5-cm-6e6cd28d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aGRZlxD-WyK-eRQoFgeW9

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-romania-soil-silt-fraction-0-5-cm-6e6cd28d -d '<json body>'
```

Example prompt: What's the silt fraction of the topsoil (0-5 cm layer) at latitude 45.75, longitude 24.83 in Romania?

## When to prefer this

Choose this endpoint when you need point-level soil silt fraction data specifically within Romania and want boundary-validated, pay-per-call access to SoilGrids topsoil texture values. It is ideal for agricultural planning, land assessment, or environmental analysis workflows scoped to Romania. Use alternatives if you need silt data for other countries, other soil depth layers, or other soil texture fractions (e.g. clay, sand).

## Known failure modes

- Coordinate outside Romania boundary: request is rejected before payment with a validation error
- Latitude or longitude outside European coverage range (lat 34–72.5, lon -31.5–40.5): rejected with schema validation error
- Malformed request body or missing required fields: HTTP 400 or equivalent error
- Service unavailability or upstream SoilGrids data issue: HTTP 5xx error

## How this service works

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

## Output

A numeric value representing the mean silt fraction (as a proportion or percentage) for the 0-5 cm soil depth at the queried coordinate, derived from SoilGrids data. Coordinates outside Romania's Natural Earth boundary are rejected and return an error 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-eastern-land-romania-soil-silt-fraction-0-5-cm-6e6cd28d/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)