{"uid":"cap_KOtOdmkMiSH_P4_Ac0aMB","slug":"geo-midpoint-de4ead37","name":"geo-midpoint","description":"Geographic (great-circle) midpoint between two lat/lon points.","url":"https://x402.agentindex.world/geo/midpoint?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"lat1":{"type":"number","title":"Lat1","maximum":90,"minimum":-90},"lat2":{"type":"number","title":"Lat2","maximum":90,"minimum":-90},"lon1":{"type":"number","title":"Lon1","maximum":180,"minimum":-180},"lon2":{"type":"number","title":"Lon2","maximum":180,"minimum":-180}}},"responseSchema":{"type":"json","example":{"lat":50.1918,"lon":1.0999}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Q7Rov2KtExgygkTxPilGd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the geographic (great-circle) midpoint between two latitude/longitude coordinates.","exampleAgentPrompt":"What's the geographic midpoint between 40.7128° N, 74.0060° W (New York City) and 51.5074° N, 0.1278° W (London)?","exampleUseCases":[{"title":"Equidistant meeting location finder","prompt":"My colleague is in Tokyo at 35.6762° N, 139.6503° E and I'm in Sydney at 33.8688° S, 151.2093° E — what's the great-circle midpoint between us so we can think about a neutral meeting city?"},{"title":"Logistics hub placement","prompt":"We have warehouses at lat 41.8781, lon -87.6298 (Chicago) and lat 29.7604, lon -95.3698 (Houston). What's the geographic midpoint between them so we can evaluate it as a central distribution point?"},{"title":"Halfway campsite planning","prompt":"I'm starting a road trip from 34.0522° N, 118.2437° W in Los Angeles and ending at 47.6062° N, 122.3321° W in Seattle — can you find the geographic midpoint so I can plan a halfway overnight stop?"}],"resultDescription":"Returns the latitude and longitude of the great-circle midpoint between the two input coordinate pairs, representing the true spherical halfway point on the Earth's surface between the two locations.","failureModes":["Missing required parameters (lat1, lon1, lat2, lon2) result in a validation error","Latitude values outside -90 to 90 or longitude values outside -180 to 180 are rejected","Identical input points return the same point as the midpoint","Antipodal points (opposite sides of the Earth) may produce an undefined or arbitrary midpoint due to great-circle ambiguity","Payment failure via x402 protocol returns 402 status and no result"],"whenToPreferThis":"Use this endpoint when you need the true spherical (great-circle) midpoint between two geographic coordinates, especially over long distances where planar approximations fail. Prefer this over simple arithmetic averaging of lat/lon values, which introduces distortion at high latitudes or over large distances.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:37:39.686Z","isFirstParty":false,"canonicalSlug":"geo-midpoint-de4ead37"}