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HALOWERK Eastern Land – Bulgaria Built-Up Land Share
x402
HALOWERK Eastern Land – Bulgaria Built-Up Land Share is a paid API for AI agents from ostland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).
Returns the share of ESA WorldCover 2021 pixels classified as built-up for a given coordinate within Bulgaria.
Price / call$0.003
Success—
StatusUnknown
How this service works
Share of ESA WorldCover 2021 pixels classified as built-up. The coordinate is validated against the Natural Earth boundary for Bulgaria; results outside it are rejected before payment.
Output
A numeric value (fraction or percentage) representing the share of ESA WorldCover 2021 pixels classified as built-up at the queried coordinate. Coordinates outside Bulgaria's Natural Earth boundary are rejected before payment is processed.
Example use cases
Urban density screening for Bulgarian site
“I'm evaluating a plot near Plovdiv at latitude 42.1354, longitude 24.7453 — can you tell me what fraction of the surrounding land is classified as built-up according to ESA WorldCover 2021?”
Rural vs urban classification for property research
“We're assessing a rural parcel in northern Bulgaria at lat 43.8156, lon 25.9665. Can you check the built-up land share from ESA WorldCover so we know how developed that area is?”
Infrastructure planning data enrichment
“For our infrastructure project, I need the ESA WorldCover built-up pixel share at coordinates 42.4977 latitude, 27.4626 longitude inside Bulgaria — please fetch that figure.”
Technical details
Endpoint
POSThttps://ostland.halowerk.com/v1/bg-built-up-shareWhen to prefer
Choose this endpoint when you need ESA WorldCover 2021 built-up land cover fractions specifically for locations within Bulgaria, particularly for land assessment, urban density analysis, site suitability screening, or geospatial data enrichment workflows targeting Bulgarian coordinates. It is preferable over generic land cover APIs when Bulgaria-specific boundary validation and pay-per-call pricing ($0.003 USDC) are acceptable, and when WorldCover 2021 pixel-level classification is the desired data source.
Side effects
- Coordinate outside Bulgaria's Natural Earth boundary — request rejected before payment, returning a boundary validation error
- Coordinate within WGS84 European range but outside Bulgaria — rejected by country-level validation
- Malformed or missing latitude/longitude fields — returns schema validation error
- Latitude or longitude outside the published European coverage bounds (lat 34–72.5, lon -31.5–40.5) — returns range error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| latitude | number | WGS84 latitude inside the published European coverage. |
| longitude | number | WGS84 longitude inside the published European coverage. |
Tags
x402
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