# HALOWERK Baltic Land – Lithuania Soil pH (0-5 cm)

> HALOWERK Baltic Land – Lithuania Soil pH (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 pH in H2O for the 0–5 cm topsoil layer at a given coordinate within Lithuania.

## Facts

- Endpoint: POST https://baltikum.halowerk.com/v1/lt-soil-ph
- 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-lithuania-soil-ph-0-5-cm-38437381
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1hfZd0ODy7orlRRZHzMxM

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-lithuania-soil-ph-0-5-cm-38437381 -d '<json body>'
```

Example prompt: What's the SoilGrids topsoil pH (H2O, 0–5 cm layer) at latitude 54.6872 and longitude 25.2797 in Lithuania?

## When to prefer this

Choose this endpoint when you need point-level SoilGrids pH in H2O data specifically for locations within Lithuania and want automatic boundary validation to avoid charges for out-of-area queries. Prefer this over generic SoilGrids API access when operating in a micro-payment x402 workflow and targeting the 0–5 cm topsoil depth specifically.

## Known failure modes

- Coordinate outside Lithuania boundary — request rejected before payment with a geographic validation error
- Coordinate within European coverage bounds but outside Lithuania — boundary check fails
- Invalid latitude or longitude values outside the published European range — schema validation error
- Network or upstream SoilGrids data unavailability — service error

## How this service works

Mean SoilGrids pH in H2O for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Lithuania; results outside it are rejected before payment.

## Output

Returns the mean SoilGrids pH in H2O value for the 0–5 cm topsoil layer at the requested coordinate. Coordinates outside Lithuania's Natural Earth boundary are rejected before any payment is charged.

## 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-lithuania-soil-ph-0-5-cm-38437381/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)