# HALOWERK Land Dossiers – School Site Terrain-Priority Screener

> HALOWERK Land Dossiers – School Site Terrain-Priority Screener is a paid API for AI agents from landdossier.halowerk.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-15).

Returns a terrain-priority evidence dossier with six disclosed measurements and a deterministic scoring for screening candidate school sites in Europe.

## Facts

- Endpoint: POST https://landdossier.halowerk.com/v1/dossier-school-terrain-first
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-land-dossiers-school-site-terrain-priority-screener-174ec635
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VCt8q1qdPWfIrqJF_3knJ

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-land-dossiers-school-site-terrain-priority-screener-174ec635 -d '<json body>'
```

Example prompt: Can you run a HALOWERK school site terrain screening for the coordinates 51.5074° N, 0.1278° W with a 300-metre search radius and tell me the terrain-priority evidence score and measurements?

## When to prefer this

Use this endpoint when you need a fast, deterministic, evidence-based terrain screening specifically for school site selection within the European geographic coverage area. Prefer it over generic GIS or mapping APIs when you need pre-composed, use-case-specific scoring with six disclosed measurements tailored to educational facility siting criteria. Choose this over sibling endpoints (housing, hospital, hotel, solar, office) specifically when the intended land use is a school or educational institution.

## Known failure modes

- Coordinates outside European coverage area (latitude 34–72.5°N, longitude 31.5°W–40.5°E) return a coverage error
- Radius below 50m or above 2000m returns a validation error
- Missing required latitude or longitude fields returns a bad request error
- Payment failure via x402 protocol returns a 402 Payment Required response
- Malformed JSON body returns a parse error

## How this service works

Decision-support dossier for school site screening using six disclosed measurements and a deterministic terrain-priority evidence score. It is screening evidence, not a permit, valuation or legal determination.

## Output

A structured decision-support dossier containing six disclosed terrain measurements and a deterministic terrain-priority evidence score for the specified location and radius. The dossier is intended for school site screening purposes and is explicitly not a permit, property valuation, or legal determination.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "latitude": {
   "type": "number",
   "maximum": 72.5,
   "minimum": 34,
   "description": "WGS84 latitude inside the published European coverage."
  },
  "radius_m": {
   "type": "integer",
   "default": 250,
   "maximum": 2000,
   "minimum": 50
  },
  "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-land-dossiers-school-site-terrain-priority-screener-174ec635/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from landdossier.halowerk.com](https://www.zero.xyz/host/landdossier.halowerk.com/llms.txt)