{"uid":"cap_WflvYzHHQwU81fqWt2kKQ","slug":"halowerk-europe-land-built-up-share-polygon-b63f81cf","name":"HALOWERK Europe Land – Built-Up Share (Polygon)","description":"Share of ESA WorldCover 2021 pixels classified as built-up. The service evaluates the bounded polygon supplied by the caller and returns standardized units across all 30 covered countries.","url":"https://euroland.halowerk.com/v1/europe-built-up-share-parcel","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"polygon":{"type":"array","items":{"type":"array","items":[{"type":"number","maximum":40.5,"minimum":-31.5},{"type":"number","maximum":72.5,"minimum":34}],"maxItems":2,"minItems":2,"additionalItems":false},"maxItems":100,"minItems":3,"description":"WGS84 polygon ring. The closing coordinate is optional; maximum span is 0.25 degrees."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WOIM3hAOZgTZ19PLO7YZ-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the share of ESA WorldCover 2021 pixels classified as built-up within a user-supplied WGS84 polygon across 30 European countries.","exampleAgentPrompt":"What share of this parcel is classified as built-up according to ESA WorldCover? The area is bounded by coordinates [[-0.12, 51.50], [-0.11, 51.50], [-0.11, 51.51], [-0.12, 51.51]] in London.","exampleUseCases":[{"title":"Urban density check for site acquisition","prompt":"Can you tell me what fraction of this potential development site is already built-up? The polygon corners are at [2.35, 48.85], [2.36, 48.85], [2.36, 48.86], [2.35, 48.86] in Paris."},{"title":"Environmental impact baseline for planning","prompt":"I need the built-up land cover share for this polygon in Munich — corners at [11.57, 48.13], [11.58, 48.13], [11.58, 48.14], [11.57, 48.14] — to include in our planning report."},{"title":"Portfolio land use audit across European properties","prompt":"For our property at the edge of Barcelona with boundary points [2.15, 41.38], [2.16, 41.38], [2.16, 41.39], [2.15, 41.39], what percentage of the area is classified as built-up under ESA WorldCover 2021?"}],"resultDescription":"A standardized numerical value representing the share (fraction or percentage) of pixels within the provided polygon classified as built-up by ESA WorldCover 2021, covering all 30 supported European countries.","failureModes":["Polygon spans more than 0.25 degrees — request rejected","Polygon has fewer than 3 coordinate pairs — invalid geometry error","Coordinates fall outside the supported European bounding box (longitude -31.5 to 40.5, latitude 34 to 72.5) — out-of-coverage error","Polygon has more than 100 vertices — input validation failure","Malformed coordinate pairs (wrong data type or order) — schema validation error","Payment not attached or insufficient — 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need the precise built-up land cover share for a custom polygon boundary within Europe, using the authoritative ESA WorldCover 2021 dataset. Prefer it over raster download approaches when you need a single standardized scalar result without handling raw satellite imagery. Use when the analysis area can be expressed as a polygon with up to 100 vertices and a maximum span of 0.25 degrees, and when coverage of any of the 30 supported European countries is sufficient.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:12:53.916Z","isFirstParty":false}