{"uid":"cap_2occ3YulAr7ha1dF-daT8","slug":"halowerk-atlantic-land-france-drainage-tendency-b2f9f687","name":"HALOWERK Atlantic Land – France Drainage Tendency","description":"Relative runoff tendency derived from slope and ruggedness. The coordinate is validated against the Natural Earth boundary for France; results outside it are rejected before payment.","url":"https://atlantikland.halowerk.com/v1/fr-drainage-tendency","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_ZL1VAJpktkR2pRCG6OkrU","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 a relative runoff tendency score derived from terrain slope and surface ruggedness for a given coordinate within France.","exampleAgentPrompt":"What's the relative runoff tendency for the terrain at latitude 45.76, longitude 4.83 in France — I need to understand how prone that slope is to surface drainage.","exampleUseCases":[{"title":"Agricultural site drainage assessment","prompt":"I'm evaluating a farm plot near Bordeaux at latitude 44.85, longitude -0.57 — can you tell me the relative runoff tendency so I know how much slope-driven drainage risk there is?"},{"title":"Urban planning terrain risk check","prompt":"We're planning a development in the Loire Valley at around 47.39 latitude, 0.69 longitude — what's the terrain's runoff tendency score based on slope and ruggedness?"},{"title":"Environmental flood risk screening","prompt":"Can you pull the drainage tendency index for coordinates 43.60 latitude, 1.44 longitude near Toulouse? I need it to assess surface water runoff risk for an environmental report."}],"resultDescription":"A numeric relative runoff tendency value derived from terrain slope and ruggedness, indicating how strongly a location within France favors surface water drainage; coordinates outside the Natural Earth France boundary are rejected before any charge is applied.","failureModes":["Coordinate outside France boundary → request rejected before payment, error response indicating invalid location","Latitude or longitude outside published European coverage range → validation error","Malformed input JSON or missing required fields → 400-level error","Service unavailability or upstream terrain data issues → 5xx error"],"whenToPreferThis":"Choose this endpoint when you need a terrain-derived runoff or drainage tendency metric specifically for locations within France, particularly when slope and ruggedness are the relevant hydrological signals. It is well-suited for land assessment, agricultural planning, environmental screening, or flood risk workflows where a lightweight per-coordinate score is needed rather than a full hydrological model. The pre-payment boundary validation makes it cost-efficient by rejecting out-of-bounds coordinates before charging.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T19:01:25.250Z","isFirstParty":false}