{"uid":"cap_3bJ-kh1lYuk1iEOzPPFS2","slug":"halowerk-land-compare-multi-site-depression-depth-ranking-6e009198","name":"HALOWERK Land Compare – Multi-Site Depression Depth Ranking","description":"Measures local depression depth for two to ten named European sites and ranks the observed values with ties preserved.","url":"https://landvergleich.halowerk.com/v1/rank-sites-depression-depth","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":10,"minItems":2}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LOQWgc0hR7taBux4BPoK5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Measures local depression depth for two to ten named European sites and returns a ranked list with ties preserved.","exampleAgentPrompt":"Rank these five European sites by local depression depth for me — Paris (48.8566, 2.3522), Madrid (40.4168, -3.7038), Rome (41.9028, 12.4964), Warsaw (52.2297, 21.0122), and Budapest (47.4979, 19.0402) — and make sure ties are kept together in the ranking.","exampleUseCases":[{"title":"Agricultural drainage site selection","prompt":"I'm evaluating six candidate farm plots in France and Germany for drainage suitability — can you measure and rank them by local depression depth? Coordinates: Bordeaux (44.8378, -0.5792), Lyon (45.7640, 4.8357), Strasbourg (48.5734, 7.7521), Munich (48.1351, 11.5820), Cologne (50.9333, 6.9500), and Frankfurt (50.1109, 8.6821)."},{"title":"Flood-risk triage across candidate sites","prompt":"We're assessing flood risk potential for four sites in the Netherlands and Belgium — rank them by local depression depth so we know which are most at risk. Sites: Amsterdam (52.3676, 4.9041), Rotterdam (51.9244, 4.4777), Brussels (50.8503, 4.3517), and Ghent (51.0543, 3.7174)."},{"title":"Environmental restoration site prioritization","prompt":"Can you rank these seven European wetland restoration candidate sites by depression depth, preserving any ties? Sites: Stockholm (59.3293, 18.0686), Copenhagen (55.6761, 12.5683), Helsinki (60.1699, 24.9384), Oslo (59.9139, 10.7522), Tallinn (59.4370, 24.7536), Riga (56.9496, 24.1052), and Vilnius (54.6872, 25.2797)."}],"resultDescription":"A ranked list of the submitted named European sites ordered by their measured local depression depth values, with rank positions assigned and ties preserved — allowing direct identification of the deepest and shallowest depressions across the input set.","failureModes":["Coordinates outside European coverage bounds (lat 34–72.5, lon -31.5–40.5) result in validation error","Fewer than 2 or more than 10 locations triggers schema validation failure","Missing required latitude or longitude fields returns a 400 error","Site name exceeding 60 characters rejected","Payment failure or insufficient USDC balance prevents request processing"],"whenToPreferThis":"Use this endpoint when you need to compare depression depth across more than two European sites simultaneously and want a ranked output with ties preserved. For a simple two-site signed difference, use the sibling two-site depression depth comparison endpoint instead. Choose this ranking endpoint when selecting among multiple candidate land parcels or when a prioritized ordering of sites is needed rather than a pairwise delta.","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}