{"uid":"cap_Lv-VYQcNsEPXe4NwA7xsj","slug":"halowerk-nordic-land-iceland-surface-clay-fraction-0-5-cm-7b451ce9","name":"HALOWERK Nordic Land – Iceland Surface Clay Fraction (0-5 cm)","description":"Mean SoilGrids clay fraction for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Iceland; results outside it are rejected before payment.","url":"https://nordland.halowerk.com/v1/is-soil-clay","method":"POST","headers":{},"bodySchema":{"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."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ry0ccTRg1gHt0mWJIcXLv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","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 clay fraction (%) for the 0-5 cm depth layer at a given WGS84 coordinate within Iceland, validated against Natural Earth boundaries.","exampleAgentPrompt":"What is the mean clay fraction in the top 5 cm of soil at latitude 64.13, longitude -21.93 in Iceland? I need the SoilGrids value for that surface layer.","exampleUseCases":[{"title":"Agricultural land suitability assessment","prompt":"I'm evaluating a potential farming site in Iceland at coordinates 65.2°N, -18.6°E — can you look up the mean clay fraction in the topsoil (0-5 cm) there so I can assess drainage and tillage suitability?"},{"title":"Environmental baseline survey","prompt":"For my environmental impact report, I need the SoilGrids clay content for the top 5 cm of soil at lat 63.8, lon -22.1 in Iceland — can you pull that for me?"},{"title":"Geospatial soil data enrichment pipeline","prompt":"I'm building a soil property dataset for Iceland and need the mean clay fraction at the 0-5 cm depth for the coordinate at 66.05 latitude, -18.75 longitude — can you fetch that value?"}],"resultDescription":"A numeric value representing the mean clay fraction (as a percentage or volumetric fraction) in the 0-5 cm topsoil layer at the requested coordinate, sourced from SoilGrids. Requests with coordinates outside Iceland's Natural Earth boundary are rejected before billing.","failureModes":["Coordinate outside Iceland Natural Earth boundary — request rejected with a boundary validation error, no charge","Latitude or longitude outside the declared European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error","Invalid or missing coordinate fields — 400-level error","SoilGrids data unavailable for the exact cell — possible null or no-data response"],"whenToPreferThis":"Use this endpoint when you need topsoil clay fraction data specifically for Iceland and want a pay-per-call, boundary-validated lookup without managing a full SoilGrids API integration. Prefer it over raw SoilGrids when Iceland-specific coordinate gating and per-query micropayment billing are desired. For other soil properties (sand, pH, organic carbon) or other Nordic countries, use the sibling endpoints on the same provider.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:55:37.423Z","isFirstParty":false}