# HALOWERK Baltic Land – USDA Soil Texture Class

> HALOWERK Baltic Land – USDA Soil Texture Class is a paid API for AI agents from baltikum.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).

Returns the USDA soil texture class (e.g. sandy loam, clay) for a WGS84 coordinate in Germany, computed from SoilGrids sand, silt, and clay fractions.

## Facts

- Endpoint: POST https://baltikum.halowerk.com/v1/de-soil-texture
- 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-baltic-land-usda-soil-texture-class-e98e4b6e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YHC-_aRDgTrRuzvlV_SSx

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-baltic-land-usda-soil-texture-class-e98e4b6e -d '<json body>'
```

Example prompt: What's the USDA soil texture class at latitude 51.8, longitude 10.5 in Germany? I need to know whether it's sandy loam, clay, or something else for a site assessment.

## When to prefer this

Choose this endpoint when you need USDA-standard soil texture classification for a specific point location within Germany, derived from globally consistent SoilGrids data. It is preferable over generic soil APIs when you need a standardised texture class (not raw fractions) and geographic validation is important. The sibling endpoints on the same platform cover raw sand/silt/clay fractions, bulk density, and terrain metrics if those are needed instead.

## Known failure modes

- Coordinate outside Germany boundary: request is rejected with a geographic validation error and no charge is applied
- Coordinate within Europe but outside Germany: rejected by Natural Earth boundary check
- Invalid latitude/longitude values outside allowed ranges (34–72.5°N, -31.5–40.5°E): schema validation error
- Network or upstream SoilGrids data unavailability: service error response

## How this service works

USDA texture class calculated from SoilGrids sand, silt and clay fractions. The coordinate is validated against the Natural Earth boundary for Germany; results outside it are rejected before payment.

## Output

Returns the USDA soil texture class label (e.g. 'Sandy loam', 'Clay', 'Silt loam') derived from SoilGrids sand, silt, and clay fractions for the 0–5 cm surface layer at the requested coordinate. Coordinates outside the German boundary are rejected before any charge is applied.

## 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-baltic-land-usda-soil-texture-class-e98e4b6e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from baltikum.halowerk.com](https://www.zero.xyz/host/baltikum.halowerk.com/llms.txt)