{"uid":"cap_ovUqYF4h5Pp2nRsETKxYU","slug":"halowerk-eastern-land-hr-max-slope-c49fb64c","name":"HALOWERK Eastern Land – HR Max Slope","description":"Maximum adjacent-cell surface gradient across the analysis grid. 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-max-slope","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":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mfikkEnm2ZpzOUNf_sQM5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the maximum adjacent-cell surface gradient (steepest slope) across the analysis grid for a given coordinate within Croatia.","exampleAgentPrompt":"What's the maximum surface slope gradient at latitude 45.32, longitude 16.45 in Croatia? I need the steepest adjacent-cell terrain gradient for that point.","exampleUseCases":[{"title":"Agricultural land suitability check","prompt":"I'm evaluating a plot in Croatia at latitude 45.55, longitude 17.2 for vineyard development — can you tell me the maximum slope gradient there so I know if the terrain is too steep for machinery?"},{"title":"Construction site feasibility assessment","prompt":"We're planning a building project near latitude 44.1, longitude 15.8 in Croatia and need to know the steepest terrain slope at that location before we commission a full survey."},{"title":"Erosion risk pre-screening","prompt":"Can you get me the maximum surface slope at coordinates 45.8 latitude, 16.0 longitude in Croatia? We're screening sites for erosion risk and steepness is the first filter."}],"resultDescription":"A numeric value representing the maximum adjacent-cell surface gradient (steepest slope angle or ratio) computed across the analysis grid centered on the submitted coordinate. Coordinates outside Croatia's boundary are rejected before any computation or payment is processed.","failureModes":["Coordinate outside Croatia's Natural Earth boundary — request rejected before payment, returns validation error","Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — schema validation error","Malformed or missing coordinate fields — returns input validation error","Network or service timeout — no result returned","Ambiguous or borderline boundary coordinates may be rejected conservatively"],"whenToPreferThis":"Choose this endpoint when you need the steepest terrain slope metric for a specific point within Croatia and want boundary validation guaranteed before billing. It is purpose-built for Croatian land analysis with built-in coordinate rejection outside the national boundary, making it reliable for agricultural suitability, construction planning, or erosion risk workflows in Croatia specifically. Prefer alternatives if you need slope data outside Croatia or require mean/median slope rather than the maximum adjacent-cell gradient.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:41:28.291Z","isFirstParty":false}