{"uid":"cap_AiPeLY2Z9WH6yAAKRYfSe","slug":"halowerk-eastern-land-croatia-soil-nitrogen-0-5-cm-963c61f3","name":"HALOWERK Eastern Land – Croatia Soil 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 Croatia; results outside it are rejected before payment.","url":"https://ostland.halowerk.com/v1/hr-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_VqNLViEJTEFf8otjJmC41","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 Croatia, validated against Natural Earth boundaries.","exampleAgentPrompt":"What is the mean total nitrogen in the top 0-5 cm of soil at latitude 45.81 and longitude 15.98 in Croatia?","exampleUseCases":[{"title":"Crop suitability assessment for Croatian farmland","prompt":"I'm evaluating a plot near Osijek, Croatia at roughly 45.55 latitude and 18.69 longitude — can you tell me the total nitrogen in the top 5 cm of soil there so I can decide if it needs fertilization?"},{"title":"Environmental baseline for land acquisition","prompt":"Before we finalise purchasing land near Split, Croatia at coordinates 43.51 latitude, 16.44 longitude, can you pull the SoilGrids nitrogen reading for the 0-5 cm topsoil layer?"},{"title":"Research data collection for soil quality mapping","prompt":"I need the mean soil nitrogen for the 0-5 cm depth at 46.00 latitude and 16.50 longitude in Croatia to add to our regional soil quality dataset."}],"resultDescription":"A numeric value representing the mean SoilGrids total nitrogen for the 0-5 cm soil layer at the queried coordinate within Croatia, expressed in standard SoilGrids units (typically g/kg). Coordinates outside Croatian territory are rejected before processing.","failureModes":["Coordinate outside Croatia boundary — rejected before payment with a validation error","Coordinate within European bounding box but outside Croatia — boundary check fails and request is refused","Latitude or longitude outside allowed European range (lat 34–72.5, lon -31.5–40.5) — schema validation error","Network timeout or upstream SoilGrids data unavailability — service error returned","Malformed or missing coordinate values — schema validation error"],"whenToPreferThis":"Use this endpoint when you need soil nitrogen data specifically for a point location within Croatia and want automatic boundary enforcement so out-of-country coordinates are rejected without incurring costs. Prefer this over general SoilGrids API calls when you need a pay-per-query micropayment model and Croatian-scoped validation built in.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:54:07.798Z","isFirstParty":false}