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

> HALOWERK Baltic Land – Estonia 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 coordinate within Estonia, validated against Natural Earth boundaries.

## Facts

- Endpoint: POST https://baltikum.halowerk.com/v1/ee-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-estonia-soil-silt-fraction-0-5-cm-d269f670
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_x3upTJZxLg6UdH5kqMtxG

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-estonia-soil-silt-fraction-0-5-cm-d269f670 -d '<json body>'
```

Example prompt: What's the mean silt fraction in the top 5 cm of soil at latitude 58.38, longitude 26.72 in Estonia? I need the SoilGrids value for that point.

## When to prefer this

Use this endpoint when you need SoilGrids-derived silt fraction data specifically for the 0–5 cm topsoil layer at a point location within Estonia. It is ideal for soil texture analysis, agricultural planning, environmental assessments, or construction site surveys in Estonia. Prefer this over generic soil APIs when you need validated, boundary-checked results for the Estonian territory with per-call micropayment pricing.

## Known failure modes

- Coordinate outside Estonia's Natural Earth boundary → request rejected before payment, likely 400 or 422 error
- Latitude or longitude outside European coverage bounds (lat 34–72.5, lon -31.5–40.5) → validation failure
- Missing required latitude or longitude parameter → 400 Bad Request
- Service unavailability or upstream SoilGrids data gap → 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 Estonia; results outside it are rejected before payment.

## Output

A numeric value representing the mean silt fraction (likely as a percentage or mass fraction) for the 0–5 cm soil layer at the queried coordinate, sourced from SoilGrids. Requests with coordinates outside Estonia's Natural Earth boundary are rejected without charge.

## 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-estonia-soil-silt-fraction-0-5-cm-d269f670/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)