{"uid":"cap_oIPdKRSSlQDLNR9MfxXW_","slug":"halowerk-europe-land-soil-sand-fraction-parcel-polygon-79dfcee9","name":"HALOWERK Europe Land – Soil Sand Fraction (Parcel Polygon)","description":"Mean SoilGrids sand fraction for the 0-5 cm layer. 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-soil-sand-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_wOgQXqkRByhnDDYTU9J9C","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 mean SoilGrids sand fraction for the 0–5 cm soil layer within a caller-supplied WGS84 polygon, covering 30 European countries.","exampleAgentPrompt":"What's the mean sand fraction in the top 5 cm of soil for this plot? The parcel corners are at roughly [[-0.12, 51.50], [-0.11, 51.50], [-0.11, 51.51], [-0.12, 51.51]].","exampleUseCases":[{"title":"Topsoil sand assessment for farm acquisition","prompt":"I'm evaluating a farmland plot in northern France before purchase. Can you get me the mean sand fraction in the top 5 cm of soil for this parcel? Polygon vertices are: [[2.31, 48.85], [2.32, 48.85], [2.32, 48.86], [2.31, 48.86]]."},{"title":"Crop suitability screening in Spain","prompt":"We're deciding whether to grow drought-tolerant crops on a plot in Andalusia — can you check the topsoil sand fraction for this polygon: [[-4.42, 37.88], [-4.41, 37.88], [-4.41, 37.89], [-4.42, 37.89]]? Sandy soils drain fast so it matters for our irrigation planning."},{"title":"Soil texture data enrichment for land registry","prompt":"I'm building a soil quality dataset for parcels in the Netherlands and need the SoilGrids sand fraction for the 0–5 cm layer for this polygon: [[4.90, 52.37], [4.91, 52.37], [4.91, 52.38], [4.90, 52.38]]."}],"resultDescription":"A standardized mean sand fraction value (likely as a percentage or volumetric fraction) for the 0–5 cm topsoil layer within the supplied polygon, derived from SoilGrids global soil data, covering any of 30 European countries.","failureModes":["Polygon spans more than 0.25 degrees — request rejected with validation error","Fewer than 3 coordinate pairs supplied — invalid polygon error","Coordinates fall outside the 30-country European coverage area — out-of-bounds error","Polygon self-intersects or is malformed — geometry validation failure","Payment not attached or insufficient — HTTP 402 payment required"],"whenToPreferThis":"Choose this endpoint when you need parcel-level mean topsoil sand fraction for a custom polygon boundary in Europe, particularly when working with SoilGrids-standardized data across multiple countries. Prefer this over point-based or fixed-radius variants when you have an exact land parcel geometry and need an area-aggregated result rather than a local buffer estimate.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:05:03.648Z","isFirstParty":false}