# HALOWERK Land Dossiers – Housing (Balanced Score)

> HALOWERK Land Dossiers – Housing (Balanced Score) 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 six-factor balanced evidence dossier for screening a European land parcel's suitability for housing development.

## Facts

- Endpoint: POST https://landdossier.halowerk.com/v1/dossier-housing-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-housing-balanced-score-a4ccf2d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PKloorqUcLXWRTTCuHzdO

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-housing-balanced-score-a4ccf2d3 -d '<json body>'
```

Example prompt: Can you run a housing land screening dossier on the parcel at 51.5074° N, -0.1278° E with a 300-metre search radius and give me the balanced evidence score and all six measurements?

## When to prefer this

Choose this endpoint when you need a fast, low-cost, deterministic evidence score for housing land suitability at a specific European location. It is ideal for early-stage site screening and shortlisting before committing to expensive surveys or planning consultants. Prefer this over generic geospatial APIs when you specifically need a housing-focused multi-factor balanced score with transparent disclosed measurements rather than raw geodata.

## Known failure modes

- Coordinates outside European coverage bounds (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 bad request error
- Network or service unavailability returns a 5xx error
- Payment failure or insufficient USDC balance prevents call from completing

## How this service works

Decision-support dossier for housing land 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 housing land dossier containing six disclosed measurements and a deterministic balanced evidence score indicating the site's suitability for housing development. This is screening evidence only — not a permit, 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-housing-balanced-score-a4ccf2d3/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)