# HALOWERK Baltic Land – Latvia Soil Bulk Density

> HALOWERK Baltic Land – Latvia Soil Bulk Density 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 bulk density for the 0–5 cm topsoil layer at a given coordinate within Latvia.

## Facts

- Endpoint: POST https://baltikum.halowerk.com/v1/lv-soil-bulk-density
- 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-bulk-density-9225ff81
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iZeq1oPY-_OSLLyGwzjsD

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-bulk-density-9225ff81 -d '<json body>'
```

Example prompt: What is the mean soil bulk density for the 0–5 cm topsoil layer at latitude 56.946 and longitude 24.105 in Latvia?

## When to prefer this

Choose this endpoint when you specifically need SoilGrids-derived soil bulk density for the 0–5 cm topsoil layer at a point location within Latvia. It is purpose-built for Latvia with boundary validation, making it more reliable than generic global soil APIs for Latvian coordinates. Prefer it for precision agriculture, environmental assessments, land management, or soil modeling workflows targeting Latvian sites.

## Known failure modes

- Coordinate outside Latvia boundary: request rejected with a boundary validation error before payment
- Coordinate outside European coverage range (lat 34–72.5, lon -31.5–40.5): schema validation failure
- Missing latitude or longitude: request rejected with a parameter error
- SoilGrids data unavailable for the given point: empty or null result returned
- Payment failure: x402 payment not completed, request not processed

## How this service works

Mean SoilGrids bulk density 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 SoilGrids bulk density (in kg/dm³ or g/cm³) for the 0–5 cm topsoil layer at the queried coordinate, restricted to points within the Natural Earth boundary of Latvia. Coordinates outside Latvia 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-latvia-soil-bulk-density-9225ff81/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)