# HALOWERK Land Dossiers – School Site Screening

> HALOWERK Land Dossiers – School Site Screening 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 balanced evidence dossier with six disclosed measurements and a deterministic score to support school site screening decisions in Europe.

## Facts

- Endpoint: POST https://landdossier.halowerk.com/v1/dossier-school-balanced
- 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-screening-cd8b4a98
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__oOXAQ-x8nKm2hRLHdPw0

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-screening-cd8b4a98 -d '<json body>'
```

Example prompt: Can you run a school site screening dossier for the coordinates 51.5074° N, 0.1278° W using a 300-metre radius and give me the balanced evidence score?

## When to prefer this

Use this endpoint when you need a fast, deterministic, cost-effective pre-screening score for a specific European location being considered for school development. It is ideal for early-stage site filtering before committing to expensive surveys or planning consultations. Choose this over generic geospatial or property APIs when you specifically need education-sector land suitability evidence with a transparent, balanced scoring methodology.

## Known failure modes

- Coordinates outside European coverage (latitude 34–72.5, longitude -31.5–40.5) will be rejected
- radius_m below 50 or above 2000 will fail validation
- Missing latitude or longitude returns a 400-level error
- Payment failure via x402 protocol blocks the request
- Ambiguous or malformed coordinate values cause input errors

## How this service works

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

## Output

A structured decision-support dossier containing six disclosed measurement values and a single deterministic balanced evidence score indicating how suitable the queried location is for a school site. The dossier is screening evidence only and does not constitute a permit, legal determination, or valuation.

## 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-screening-cd8b4a98/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)