{"uid":"cap__qkNUK1deisrmaBgWbEwJ","slug":"halowerk-eastern-land-bulgaria-terrain-aspect-b4aa5539","name":"HALOWERK Eastern Land – Bulgaria Terrain Aspect","description":"Circular direction of the dominant surface gradient, clockwise from north. The coordinate is validated against the Natural Earth boundary for Bulgaria; results outside it are rejected before payment.","url":"https://ostland.halowerk.com/v1/bg-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_em5wgMQw8XbaU7lAByI2M","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 of the dominant surface gradient (aspect) at a given coordinate, clockwise from north, validated against Bulgaria's boundary.","exampleAgentPrompt":"What direction does the terrain face at latitude 42.15, longitude 24.75 in Bulgaria — give me the aspect angle clockwise from north.","exampleUseCases":[{"title":"Solar panel site suitability assessment","prompt":"I'm evaluating a plot of land in Bulgaria at 42.45 latitude, 25.10 longitude for solar panel installation — can you tell me what direction the slope faces so I know if it gets good southern exposure?"},{"title":"Agricultural terracing slope orientation","prompt":"For a farm parcel in Bulgaria at coordinates 41.88 north, 23.60 east, what is the aspect of the dominant slope? I need to know which way the land faces to plan irrigation and crop rows."},{"title":"Hiking trail slope direction analysis","prompt":"I'm planning a hiking route through the Rhodope Mountains in Bulgaria — what is the terrain aspect at 41.65 latitude, 24.35 longitude, measured clockwise from north?"}],"resultDescription":"A numeric value representing the clockwise angle in degrees from north (0–360) indicating the direction of the dominant surface gradient at the queried coordinate. Points outside Bulgaria's Natural Earth boundary are rejected before any charge is applied.","failureModes":["Coordinate outside Bulgaria's Natural Earth boundary — request rejected with error before payment","Latitude or longitude out of the accepted European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error","Invalid or missing coordinate fields — schema validation failure","No terrain data available for the given coordinate — possible no-data response"],"whenToPreferThis":"Choose this endpoint when you need terrain aspect (slope-facing direction) specifically for coordinates within Bulgaria, and want boundary validation before incurring payment. Prefer this over generic DEM APIs when you need a lightweight, pay-per-call micro-service focused on Bulgarian land coverage with built-in coordinate validation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:42:56.432Z","isFirstParty":false}