{"uid":"cap_OqpY4jmPws74tPznf0I-A","slug":"halowerk-central-land-cz-maximum-surface-slope-207eb85a","name":"HALOWERK Central Land – CZ Maximum Surface Slope","description":"Maximum adjacent-cell surface gradient across the analysis grid. The coordinate is validated against the Natural Earth boundary for Czechia; results outside it are rejected before payment.","url":"https://mitteleuropa.halowerk.com/v1/cz-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_qWCEL74WORTNgVf4d7y5w","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 across the analysis grid for a given coordinate within Czechia.","exampleAgentPrompt":"What's the maximum surface slope gradient at coordinates 50.08 latitude, 14.42 longitude in Czechia — I need the steepest adjacent-cell gradient from the terrain grid there.","exampleUseCases":[{"title":"Assessing slope risk for construction","prompt":"I'm evaluating a construction site at 49.74° N, 13.37° E in Czechia — can you get me the maximum surface slope gradient there so I can check for terrain instability?"},{"title":"Trail difficulty classification","prompt":"For a hiking trail planning project, what's the maximum adjacent-cell slope gradient at 50.63° N, 15.71° E in the Czech Republic?"},{"title":"Agricultural suitability screening","prompt":"I need to know how steep the terrain gets at 48.91° N, 16.60° E in Czechia to assess whether that land parcel is suitable for mechanized farming — can you pull the maximum surface slope?"}],"resultDescription":"A numeric value representing the maximum adjacent-cell surface gradient (slope) across the analysis grid centered on the requested coordinate, computed from high-resolution DEM data. Coordinates outside the Natural Earth boundary for Czechia are rejected before any charge is applied.","failureModes":["Coordinate outside Czechia boundary — rejected before payment with a validation error","Latitude or longitude outside published European coverage range (34–72.5°N, -31.5–40.5°E) — schema validation failure","Invalid coordinate format or missing required fields — HTTP 400 bad request","Service unavailable or DEM data not accessible — HTTP 500 or timeout"],"whenToPreferThis":"Use this endpoint when you need the maximum surface slope gradient specifically for a point within Czechia and want boundary validation enforced before billing. Prefer this over generic elevation APIs when you require the steepest adjacent-cell gradient metric (not mean slope) from a Copernicus DEM GLO-30 based grid, and when you need guaranteed rejection of out-of-bounds coordinates at no cost.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T07:00:08.266Z","isFirstParty":false}