# HALOWERK Baltic Land – Latvia Soil Sand Fraction (0-5 cm)

> HALOWERK Baltic Land – Latvia Soil Sand Fraction (0-5 cm) 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 mean SoilGrids sand fraction for the 0–5 cm topsoil layer at a given WGS84 coordinate within Latvia.

## Facts

- Endpoint: POST https://baltikum.halowerk.com/v1/lv-soil-sand
- 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-latvia-soil-sand-fraction-0-5-cm-65c37756
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Yj52o7YiddEaMFGjrQU3e

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-latvia-soil-sand-fraction-0-5-cm-65c37756 -d '<json body>'
```

Example prompt: What's the mean sand fraction in the top 5 cm of soil at latitude 56.946 and longitude 24.105 in Latvia? I need the SoilGrids value for that location.

## When to prefer this

Choose this endpoint when you specifically need the SoilGrids sand fraction for the topsoil (0–5 cm) at a point location within Latvia. It is ideal for per-location lookups in agricultural assessment, environmental modeling, or land-use planning workflows focused on Latvia. If you need sand fraction for other countries or other soil depth intervals, look for sibling endpoints. If you need clay or bulk density instead, use the corresponding HALOWERK Baltic Land endpoints for those soil properties.

## Known failure modes

- Coordinate outside Latvia boundary — rejected before payment with a boundary validation error
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation failure
- Malformed or missing latitude/longitude fields — input validation error
- SoilGrids data unavailable for the specified location — no-data response
- Network or upstream provider timeout

## How this service works

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

## Output

A numeric value representing the mean sand fraction (as a percentage or proportion) for the 0–5 cm soil layer at the specified Latvian coordinate, sourced from SoilGrids. The response is only returned if the coordinate passes validation against the Natural Earth boundary for Latvia; out-of-bounds coordinates are rejected before the payment is processed.

## 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-latvia-soil-sand-fraction-0-5-cm-65c37756/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)