{"uid":"cap_BgxPe-2zTmxQO-XGiM_Xm","slug":"halowerk-southern-land-portugal-soil-total-nitrogen-0-5-cm-55dfc7d0","name":"HALOWERK Southern Land – Portugal Soil Total Nitrogen (0-5 cm)","description":"Mean SoilGrids total nitrogen for the 0-5 cm layer. The coordinate is validated against the Natural Earth boundary for Portugal; results outside it are rejected before payment.","url":"https://suedland.halowerk.com/v1/pt-soil-nitrogen","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_nFfEKhdR8z5N5nAOwiqUo","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 total nitrogen content for the 0-5 cm soil layer at a given coordinate within Portugal, validated against Natural Earth boundaries.","exampleAgentPrompt":"What's the mean total nitrogen in the top 5 cm of soil at latitude 38.72, longitude -9.14 in Portugal?","exampleUseCases":[{"title":"Vineyard soil fertility assessment","prompt":"Can you pull the total nitrogen content in the top 5 cm of soil for my vineyard plot near Évora — coordinates are latitude 38.57, longitude -7.91?"},{"title":"Agricultural land suitability screening","prompt":"I'm evaluating farmland in the Algarve region. What's the SoilGrids total nitrogen level at latitude 37.20, longitude -8.40 in the 0-5 cm layer?"},{"title":"Environmental baseline for land survey","prompt":"For an environmental study in northern Portugal, I need the mean topsoil nitrogen reading at latitude 41.55, longitude -8.43 — can you get that from SoilGrids?"}],"resultDescription":"A numeric value representing the mean SoilGrids total nitrogen content (cg/kg or equivalent unit) for the 0-5 cm soil layer at the queried coordinate. Returns an error or rejection if the coordinate falls outside the Natural Earth boundary for Portugal.","failureModes":["Coordinate outside Portugal boundary — request rejected before payment is processed","Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5)","Invalid or missing coordinate parameters in request body","Service unavailable or upstream SoilGrids data unreachable"],"whenToPreferThis":"Use this endpoint when you need topsoil nitrogen data specifically for a point location within Portugal and want automatic boundary validation to avoid out-of-scope queries. Prefer this over generic SoilGrids API access when you need a simple, pay-per-call lookup with built-in geographic filtering for Portuguese territory.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:02:46.967Z","isFirstParty":false}