# HALOWERK Baltic Land – Latvia Water & Wetland Share

> HALOWERK Baltic Land – Latvia Water & Wetland Share is a paid API for AI agents from baltikum.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Returns the combined land-cover share of permanent water, herbaceous wetland, and mangrove classes for a given coordinate within Latvia.

## Facts

- Endpoint: POST https://baltikum.halowerk.com/v1/lv-water-wetland-share
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-baltic-land-latvia-water-wetland-share-81e27230
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MsLUhZ2UjVm8qYSCAJkO5

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-baltic-land-latvia-water-wetland-share-81e27230 -d '<json body>'
```

Example prompt: What's the combined water and wetland land-cover share at latitude 56.95, longitude 23.77 in Latvia? I need the permanent water, herbaceous wetland, and mangrove fractions for that point.

## When to prefer this

Use this endpoint when you need hydrological or wetland land-cover statistics specifically for a point coordinate within Latvia, particularly when building environmental assessments, site suitability analyses, or flood-risk models. It is preferable to a generic global land-cover API when you want pre-validated, Latvia-scoped results with boundary enforcement before payment.

## Known failure modes

- Coordinate outside Latvia boundary – request rejected before payment, validation error returned
- Latitude or longitude outside the published European coverage bounds (lat 34–72.5, lon -31.5–40.5) – validation error
- Malformed or missing latitude/longitude fields – schema validation error
- Service unavailable or timeout – HTTP 5xx error

## How this service works

Combined share of permanent water, herbaceous wetland and mangrove classes. The coordinate is validated against the Natural Earth boundary for Latvia; results outside it are rejected before payment.

## Output

A numeric fraction or percentage representing the combined share of ESA WorldCover pixels classified as permanent water, herbaceous wetland, and mangrove within the analysis grid cell around the provided Latvia coordinate. Coordinates outside the Latvia boundary are rejected before any payment is processed.

## 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-baltic-land-latvia-water-wetland-share-81e27230/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from baltikum.halowerk.com](https://www.zero.xyz/host/baltikum.halowerk.com/llms.txt)