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

> HALOWERK Baltic Land – Latvia Soil Silt 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 silt fraction for the 0–5 cm soil layer at a given WGS84 coordinate within Latvia.

## Facts

- Endpoint: POST https://baltikum.halowerk.com/v1/lv-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-baltic-land-latvia-soil-silt-fraction-0-5-cm-4d20a808
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_d56ltT9FhgMgHfa2tY6ft

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-silt-fraction-0-5-cm-4d20a808 -d '<json body>'
```

Example prompt: What's the SoilGrids silt fraction in the top 5 cm of soil at latitude 56.946 and longitude 24.105 in Latvia?

## When to prefer this

Choose this endpoint when you specifically need SoilGrids-derived silt fraction data for the topsoil layer (0–5 cm) at a coordinate confirmed to be within Latvia. It is optimized for single-point lookups with built-in boundary validation, making it reliable for per-query agentic workflows. Prefer this over generic soil APIs when you need Baltic/Latvian-specific coverage with pay-per-call pricing and guaranteed geographic scope enforcement.

## Known failure modes

- Coordinates outside Latvia's Natural Earth boundary are rejected with a validation error before payment is charged
- Coordinates outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) are rejected
- Missing or malformed latitude/longitude inputs return a validation error
- No-data areas within Latvia (e.g., water bodies) may return null or error
- Service unavailability or payment failure may result in a 402 or 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 Latvia; results outside it are rejected before payment.

## Output

A numeric value representing the mean silt fraction (likely as a percentage or volumetric proportion) for the 0–5 cm soil depth at the requested Latvian coordinate, sourced from SoilGrids. Coordinates outside Latvia's Natural Earth boundary are rejected before processing.

## 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-silt-fraction-0-5-cm-4d20a808/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)