{"uid":"cap_3oIhCt8Nd3ONmNLXJim7Y","slug":"local-rank-tracker-grid-coordinate-calculator-dd68fff9","name":"Local Rank Tracker Grid Coordinate Calculator","description":"40+ public web-data, SERP, e-commerce, real-estate, finance and AI-search APIs, payable per call over x402 (USDC on Base, Polygon, Arbitrum). No account or API key required. Most endpoints $0.003; AI-model endpoints $0.005.","url":"https://x402.openwebninja.com/realtime-local-and-maps-data/local-rank-tracker/calculate-grid-coordinates","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{}},"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_QW9cnJ96kaVXBfnn4SJM4","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":"Generates a grid of geographic coordinate points centered on a given lat/lng, for use in local SEO rank tracking across a spatial grid","exampleAgentPrompt":"Calculate a 5x5 rank tracking grid centered on latitude 37.341759, longitude -121.938314 with a 2km radius, so I can see the coordinate points to check local search rankings across that area.","exampleUseCases":null,"resultDescription":"Returns an array of coordinate objects, each with a lat/lng pair and a row/column index [rc], along with the input parameters echoed back and a unique request ID. The grid is evenly distributed across the specified radius around the center point.","failureModes":["Missing required query params (lat, lng, grid_size, radius) returns an error","grid_size value outside allowed enum (3,5,7,9,11,13,15) returns validation error","Invalid numeric values for lat/lng return a bad request error","Payment not included or insufficient USDC results in 402 Payment Required","Network timeout if the coordinate calculation service is slow"],"whenToPreferThis":"Use this endpoint when you need to programmatically generate a spatial grid of lat/lng points around a business location for local SEO rank tracking — specifically when you want to audit search rankings across a geographic area by checking multiple grid points rather than a single location. Prefer this over manual coordinate calculation or geospatial libraries when you need a structured, rank-tracker-compatible output with row/column indexing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:13:16.524Z","isFirstParty":false}