# HALOWERK Land Dossiers – Solar Farm Land-Cover-First Screening

> HALOWERK Land Dossiers – Solar Farm Land-Cover-First 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 deterministic land-cover-priority evidence score and six supporting measurements to help screen a European location for solar farm suitability.

## Facts

- Endpoint: POST https://landdossier.halowerk.com/v1/dossier-solar-farm-landcover-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-solar-farm-land-cover-first-screening-9d241789
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r4a_Rkpt5ZQB42M2CaNUT

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-solar-farm-land-cover-first-screening-9d241789 -d '<json body>'
```

Example prompt: Can you run a solar farm land-cover screening dossier for the site at 48.8566°N, 2.3522°E using a 500-metre radius and tell me if the land cover looks favourable?

## When to prefer this

Choose this endpoint when you need a fast, low-cost, deterministic land-cover-priority screen for a specific European location before committing to expensive ground surveys or full feasibility studies. It is purpose-built for solar farm screening (not housing, hotels, or offices — use sibling endpoints for those). Prefer it when you need reproducible, evidence-based scoring at scale across many candidate coordinates within the European coverage area.

## Known failure modes

- Coordinates outside European coverage bounds (lat 34–72.5°N, lon −31.5–40.5°E) will return an error
- radius_m below 50 or above 2000 will be rejected as out of range
- Missing latitude or longitude fields will cause a validation error
- Payment failure via x402 protocol will block the call
- Server-side land-cover data gaps for very remote or sparse regions may reduce result quality

## How this service works

Decision-support dossier for solar farm screening using six disclosed measurements and a deterministic land-cover-priority evidence score. It is screening evidence, not a permit, valuation or legal determination.

## Output

A structured screening dossier containing a deterministic land-cover-priority evidence score plus six disclosed land measurements for the specified European location and radius. The result is decision-support evidence for early-stage solar farm site screening — 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-solar-farm-land-cover-first-screening-9d241789/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)