{"uid":"cap_o_u9_ZRsZwp5rGBlFJGxV","slug":"boring-api-geo-polygon-area-calculator-ae6ed4bd","name":"boring-api · geo — Polygon Area Calculator","description":"Pure-library spatial math and timezone lookup. Distance, bearing, polygons, point-in-polygon, timezone-by-coords. No external API calls — all computed in-Worker.","url":"https://geo.boring-api.com/polygon-area","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"polygon":{"type":"object","description":"GeoJSON Polygon Feature/Geometry"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0005","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":"$0.0005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_SXuTo9q8iJd66Muerl126","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the area of a GeoJSON polygon using pure in-Worker spatial math, with no external API calls.","exampleAgentPrompt":"What's the area of this polygon? Here's the GeoJSON: {\"type\":\"Polygon\",\"coordinates\":[[[-73.9857,40.7484],[-73.9857,40.7580],[-73.9720,40.7580],[-73.9720,40.7484],[-73.9857,40.7484]]]}","exampleUseCases":null,"resultDescription":"Returns an object containing the computed area of the provided GeoJSON polygon, calculated entirely in-Worker without external API dependencies.","failureModes":["Invalid or malformed GeoJSON polygon input returns an error","Missing polygon property in request body","Unclosed polygon ring (first and last coordinate not matching) may cause errors","Self-intersecting polygon may produce incorrect results","Non-polygon GeoJSON types (Point, LineString) may be rejected"],"whenToPreferThis":"Choose this endpoint when you need fast, cheap, serverless polygon area computation from a GeoJSON geometry with no external API dependency. Ideal for GIS workflows, land measurement, geofencing analysis, or any scenario requiring area calculation without a full mapping platform subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:33:16.918Z","isFirstParty":false}