{"uid":"cap_K4X-1KBJOstHCFcZqb-rV","slug":"halowerk-nordic-land-iceland-surface-aspect-401e676b","name":"HALOWERK Nordic Land – Iceland Surface Aspect","description":"Circular direction of the dominant surface gradient, clockwise from north. The coordinate is validated against the Natural Earth boundary for Iceland; results outside it are rejected before payment.","url":"https://nordland.halowerk.com/v1/is-aspect","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_Pe-0iXHfddQ9F92zFYZkr","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 circular direction (clockwise from north) of the dominant surface gradient for a given coordinate within Iceland.","exampleAgentPrompt":"What direction does the slope face at latitude 64.9, longitude -19.1 in Iceland — give me the aspect angle clockwise from north.","exampleUseCases":[{"title":"Solar panel site suitability in Iceland","prompt":"I'm evaluating a site at latitude 65.3, longitude -18.7 in Iceland for solar panel installation — what direction does the slope face there? Give me the aspect clockwise from north so I can assess sun exposure."},{"title":"Glacier melt runoff modelling","prompt":"For a hydrology model I'm running, I need the surface aspect at latitude 64.1, longitude -21.3 in Iceland — which direction does the dominant slope gradient face, measured clockwise from north?"},{"title":"Agricultural field orientation assessment","prompt":"I'm advising a farm at latitude 65.6, longitude -17.9 in Iceland on crop row orientation — what's the aspect angle of that land surface, clockwise from north?"}],"resultDescription":"A numeric value representing the circular direction of the dominant surface gradient at the queried coordinate, measured in degrees clockwise from north (0–360°). Coordinates outside the Iceland boundary validated by Natural Earth are rejected before payment is processed.","failureModes":["Coordinate outside Iceland boundary: request rejected pre-payment with a boundary validation error","Latitude or longitude outside published European coverage range: schema validation error","Invalid coordinate format (non-numeric, null): input validation error","Network timeout or service unavailability: HTTP 5xx error"],"whenToPreferThis":"Choose this endpoint when you need terrain aspect data specifically for coordinates within Iceland, and you require pre-payment boundary validation to avoid wasteful charges for out-of-bounds points. Prefer it over generic terrain APIs when working within the HALOWERK Nordic Land ecosystem alongside sibling endpoints for slope, soil, and wetland data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:54:13.475Z","isFirstParty":false}