{"uid":"cap_tdwqYqph85AdQLQdeqAVR","slug":"halowerk-nordic-land-terrain-ruggedness-iceland-586601cf","name":"HALOWERK Nordic Land – Terrain Ruggedness (Iceland)","description":"Standard deviation of sampled surface elevations. 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-ruggedness","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_QospaSYExQSXnvNGTI5YE","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 standard deviation of sampled surface elevations as a terrain ruggedness index for a WGS84 coordinate within Iceland's boundary.","exampleAgentPrompt":"What's the terrain ruggedness score for the point at latitude 64.9, longitude -18.1 in Iceland? I need the elevation standard deviation from the surface sampling.","exampleUseCases":[{"title":"Hiking route terrain assessment","prompt":"I'm planning a hiking route across Iceland near latitude 65.2, longitude -16.8 — can you tell me how rugged the terrain is there? I need the elevation standard deviation to gauge how challenging it'll be."},{"title":"Drone flight path safety check","prompt":"Before we fly a drone survey mission over Iceland at coordinates 63.9 latitude, -22.4 longitude, can you check how variable the surface elevation is there so we know if the terrain is too rough?"},{"title":"Infrastructure site suitability analysis","prompt":"We're evaluating a site in Iceland at latitude 66.1, longitude -23.0 for placing a communications tower — can you pull the terrain ruggedness index so we know how uneven the ground is?"}],"resultDescription":"A numeric value representing the standard deviation of sampled surface elevations at the given coordinate, serving as a terrain ruggedness index. Coordinates outside Iceland's Natural Earth boundary are rejected before the computation and payment is not charged.","failureModes":["Coordinate outside Iceland's Natural Earth boundary — request rejected before payment, error returned","Latitude or longitude out of the accepted European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error","Malformed input (missing or non-numeric coordinates) — schema validation error","Service unavailable or timeout — HTTP 5xx response"],"whenToPreferThis":"Choose this endpoint when you need a precise, pay-per-call terrain ruggedness metric (elevation standard deviation) for a specific point within Iceland, especially when working within an agentic pipeline that already handles x402 micropayments. It is purpose-built for Iceland coordinates with boundary validation, making it more reliable than general-purpose DEM APIs that may not enforce geographic scope or charge only for valid results.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:09:30.932Z","isFirstParty":false}