{"uid":"cap_nEwaWT4b9QakYNYxPDHTk","slug":"halowerk-europe-land-max-slope-250m-buffer-e6ee9450","name":"HALOWERK Europe Land – Max Slope 250m Buffer","description":"Maximum adjacent-cell surface gradient across the analysis grid. The service evaluates a circular 250 metre neighborhood around one coordinate and returns standardized units across all 30 covered countries.","url":"https://euroland.halowerk.com/v1/europe-max-slope-buffer-250m","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":"0.006","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":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8g2PR8PO05hAS_cgIHgSS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","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 within a 250-metre circular neighborhood around a given European coordinate, covering 30 countries.","exampleAgentPrompt":"What's the maximum slope within 250 metres of latitude 48.8566, longitude 2.3522 in Europe — I need the steepest terrain gradient value for that area.","exampleUseCases":[{"title":"Construction site slope risk check","prompt":"Can you check the maximum terrain slope within 250 metres of 51.5074 latitude and -0.1278 longitude in London? I need to know how steep the gradient is before we start planning groundworks."},{"title":"Solar farm land suitability screening","prompt":"I'm evaluating a site in southern Spain at latitude 37.3891, longitude -5.9845 for a solar installation — what's the maximum slope in the 250-metre buffer around that point?"},{"title":"Hiking trail difficulty assessment","prompt":"For a trail planning project near the Alps at latitude 46.8182, longitude 8.2275 in Switzerland, can you get me the maximum surface gradient within 250 metres of that coordinate?"}],"resultDescription":"A single standardized numeric value representing the maximum adjacent-cell surface gradient (slope) detected within the 250-metre circular analysis buffer around the supplied coordinate, expressed in consistent units across all 30 covered European countries.","failureModes":["Coordinate outside European coverage bounds (latitude not in 34–72.5, longitude not in -31.5–40.5) returns an error or empty result","Missing or malformed latitude/longitude input causes a validation error","Payment failure or insufficient USDC balance blocks the request","Service unavailability or internal server error returns a 5xx response","Coordinate in a country not among the 30 covered nations may return no data"],"whenToPreferThis":"Choose this endpoint when you need a quick, standardized maximum slope value for a single point within European territory using a 250-metre neighborhood — ideal for site screening, land suitability checks, and terrain risk assessments where local peak steepness matters more than average slope. Prefer this over larger buffer variants (1,000m) when you need fine-grained, localized terrain characterization, and over polygon-based endpoints when you only have a coordinate rather than a defined boundary.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T06:58:02.835Z","isFirstParty":false}