{"uid":"cap_SbTEFQObbsIVFYTpoLBQo","slug":"halowerk-europe-land-bilinear-surface-elevation-polygon-048ddbf8","name":"HALOWERK Europe Land – Bilinear Surface Elevation (Polygon)","description":"Bilinear surface elevation from Copernicus DEM GLO-30. 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-elevation-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_ykUAERm0p2qKsX7nVHNkw","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 bilinear-interpolated surface elevation statistics from Copernicus DEM GLO-30 for a user-supplied WGS84 polygon across 30 European countries.","exampleAgentPrompt":"What is the surface elevation for this parcel in France — the polygon corners are at [2.35, 48.85], [2.36, 48.85], [2.36, 48.86], [2.35, 48.86]?","exampleUseCases":[{"title":"Farm parcel elevation assessment","prompt":"I need the surface elevation for a farmland parcel in the Netherlands — the boundary points are [5.10, 52.10], [5.12, 52.10], [5.12, 52.12], [5.10, 52.12]. Can you get that from the Copernicus DEM?"},{"title":"Construction site terrain height check","prompt":"We're planning a building project near Munich. Can you look up the elevation from the Copernicus GLO-30 dataset for this site polygon: [11.57, 48.13], [11.59, 48.13], [11.59, 48.14], [11.57, 48.14]?"},{"title":"Renewable energy site suitability screening","prompt":"I'm evaluating a wind farm location in southern Spain and need the surface elevation for this land area — polygon vertices are [-3.70, 37.20], [-3.68, 37.20], [-3.68, 37.22], [-3.70, 37.22]."}],"resultDescription":"A standardized elevation value (in metres) derived via bilinear interpolation from Copernicus DEM GLO-30 for the area enclosed by the submitted polygon. The response reflects the surface elevation across the parcel geometry.","failureModes":["Polygon outside the 30 covered European countries — service returns an error or no data","Polygon span exceeds 0.25 degrees — request rejected","Fewer than 3 coordinate pairs supplied — invalid polygon error","Coordinates outside WGS84 bounds (lon -31.5 to 40.5, lat 34 to 72.5) — out-of-range error","Payment not processed — x402 payment required response","Malformed coordinate array — schema validation failure"],"whenToPreferThis":"Choose this endpoint when you need Copernicus GLO-30 bilinear elevation for a specific polygon boundary in Europe (up to 0.25° span) rather than a circular buffer or point lookup. It is the right choice for parcel-level, property, or site-boundary elevation queries across the 30 supported European countries where standardized DEM data is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:12:21.588Z","isFirstParty":false}