# HALOWERK Atlantic Land – Belgium Soil pH (0-5 cm)

> HALOWERK Atlantic Land – Belgium Soil pH (0-5 cm) is a paid API for AI agents from atlantikland.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 Belgium, validated against Natural Earth boundaries.

## Facts

- Endpoint: POST https://atlantikland.halowerk.com/v1/be-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-atlantic-land-belgium-soil-ph-0-5-cm-b50d984d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KeBmeowDltavSjlBN95GR

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-atlantic-land-belgium-soil-ph-0-5-cm-b50d984d -d '<json body>'
```

Example prompt: What's the topsoil pH (0–5 cm, H2O method) at latitude 50.85 and longitude 4.35 in Belgium? I need the SoilGrids value for that location.

## When to prefer this

Choose this endpoint when you need authoritative SoilGrids topsoil pH data specifically for Belgian locations, with built-in boundary validation ensuring you only pay for valid in-country queries. Prefer it over generic soil APIs when Belgium-specific coverage, SoilGrids provenance, and per-call micro-pricing via x402 are required.

## Known failure modes

- Coordinate outside Belgium boundary — request rejected with validation error before payment
- Coordinate within European coverage range but outside Belgium polygon — rejected
- Latitude or longitude outside the published European coverage bounds (lat 34–72.5, lon -31.5–40.5) — schema validation failure
- Missing latitude or longitude parameter — request fails with input error
- No SoilGrids data available for the queried cell — may return null or no-data response

## 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 Belgium; results outside it are rejected before payment.

## Output

A numeric mean soil pH value (H2O method) for the 0–5 cm topsoil layer at the queried Belgian coordinate, sourced from the SoilGrids dataset. Coordinates outside Belgium's Natural Earth boundary 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-atlantic-land-belgium-soil-ph-0-5-cm-b50d984d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from atlantikland.halowerk.com](https://www.zero.xyz/host/atlantikland.halowerk.com/llms.txt)