{"uid":"cap_LdLnHP98SdJ7MtyFc8QYL","slug":"halowerk-land-compare-maximum-slope-comparison-ee139541","name":"HALOWERK Land Compare – Maximum Slope Comparison","description":"Measures maximum slope for exactly two European coordinates with one method and reports the signed difference and winner where meaningful.","url":"https://landvergleich.halowerk.com/v1/compare-two-max-slope","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"locations":{"type":"array","items":{"type":"object","required":["longitude","latitude"],"properties":{"name":{"type":"string","maxLength":60,"minLength":1},"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."}},"additionalProperties":false},"maxItems":2,"minItems":2}}},"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_9EJ-sagc9w5shzbuHpQfL","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":"Measures and compares maximum terrain slope at exactly two European coordinates, returning the signed difference and identifying the steeper location.","exampleAgentPrompt":"Compare the maximum terrain slope between these two locations in Europe: one at latitude 47.5, longitude 11.2 (named 'Bavaria Alps') and one at latitude 48.8, longitude 2.3 (named 'Paris'), and tell me which site is steeper and by how much.","exampleUseCases":[{"title":"Hiking route steepness suitability check","prompt":"I'm planning a hike and want to know which spot is steeper — coordinates 45.9, 7.9 in the Alps (call it 'Cervinia') versus 47.1, 15.4 in Austria ('Schöckel'). Which has the higher maximum slope and what's the difference?"},{"title":"Construction site terrain feasibility","prompt":"We're evaluating two potential building sites in Europe. Can you measure the maximum slope at latitude 51.5 longitude -0.1 ('London Site') and latitude 52.5 longitude 13.4 ('Berlin Site') and tell me which is flatter and by how much?"},{"title":"Agricultural land steepness ranking","prompt":"For a farming suitability report, compare the maximum slope at these two European fields: latitude 43.6, longitude 1.4 ('Toulouse Field') and latitude 44.8, longitude 0.6 ('Bordeaux Field') — which one is less steep?"}],"resultDescription":"Returns the maximum slope value measured at each of the two input coordinates, the signed numerical difference between them, and indicates which location has the steeper slope (the 'winner') where the difference is meaningful.","failureModes":["Coordinates outside European coverage bounds (lat 34–72.5, lon -31.5–40.5) return a coverage error","Fewer or more than exactly two locations in the input array returns a validation error","Malformed coordinate values (non-numeric, out-of-range) return a schema validation error","Payment failure or insufficient funds returns a 402 Payment Required error","Unavailable elevation/slope data for a specific coordinate may return a data gap error"],"whenToPreferThis":"Use this endpoint when you need a direct pairwise comparison of maximum terrain slope between exactly two European locations, with a clear signed difference and winner — rather than ranking multiple sites or retrieving raw slope data without comparison. Prefer this over generic elevation APIs when you specifically need slope steepness (not just altitude) and want a structured comparative result for European coordinates.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:09:13.947Z","isFirstParty":false}