{"uid":"cap_I9_qAhucG-68lU9xKZoEl","slug":"halowerk-baltic-land-estonia-maximum-surface-slope-f79dc240","name":"HALOWERK Baltic Land – Estonia Maximum Surface Slope","description":"Maximum adjacent-cell surface gradient across the analysis grid. The coordinate is validated against the Natural Earth boundary for Estonia; results outside it are rejected before payment.","url":"https://baltikum.halowerk.com/v1/ee-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_Px-yj45ELtGj3dA3Xie_y","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) at a given coordinate within Estonia's boundaries.","exampleAgentPrompt":"What's the maximum terrain slope at latitude 58.3780, longitude 26.7290 in Estonia? I need the steepest surface gradient for that point.","exampleUseCases":[{"title":"Construction site slope feasibility check","prompt":"Can you get me the maximum terrain slope at latitude 59.4370, longitude 24.7536 in Estonia? I need to know how steep the land is before we plan a building foundation there."},{"title":"Flood risk terrain assessment","prompt":"What's the steepest surface gradient at coordinates 57.8489, 27.0170 in Estonia? We're evaluating how quickly water would run off at this location."},{"title":"Agricultural land suitability screening","prompt":"Check the maximum slope at latitude 58.9500, longitude 25.5500 in Estonia — we need to know if the terrain is too steep for mechanized farming equipment."}],"resultDescription":"A numeric value representing the maximum adjacent-cell surface slope gradient (steepest local terrain angle or rise-over-run) at the queried coordinate within Estonia. Coordinates outside Estonia's Natural Earth boundary are rejected before any charge is made.","failureModes":["Coordinate outside Estonia's Natural Earth boundary — request rejected with validation error before payment","Latitude or longitude outside the published European coverage bounds (lat 34–72.5, lon -31.5–40.5) — schema validation error","Missing required latitude or longitude field — request returns validation/bad request error","Network or service timeout — transient error, retry recommended","Payment failure via x402 protocol — request not processed"],"whenToPreferThis":"Use this endpoint when you need point-level maximum terrain slope data specifically within Estonia. It is ideal for geospatial enrichment pipelines, site feasibility studies, agricultural suitability assessments, or hydrological modeling where Estonia-validated slope data is required. Prefer it over generic DEM APIs when boundary validation and per-query micropayment pricing are acceptable and Estonia coverage is sufficient.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:12:21.587Z","isFirstParty":false}