{"uid":"cap_q_RPRtfgP-rr0Wvx2WUf0","slug":"parallax-basket-x402-buyer-overlap-analytics-407adde3","name":"Parallax Basket — x402 Buyer Overlap Analytics","description":"Not quoted. Not estimated. Read from the settlement graph, stamped with frame and coverage, priced per fact for people and their agents.","url":"https://parallax402.com/v1/basket/%7BaddressOrHost%7D","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"json","format":"application/json","example":{"fact":{"buyers":96,"co_sellers":[{"lift":3.4,"seller":"0xcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd","shared_buyers":21}],"multi_seller_share":0.4375},"tier":"full","as_of":"2026-09-01","frame":"settler-eip3009-base"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_7IVnhRB7IGQ1EDoK5n3tb","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns co-purchase overlap statistics for a seller address or host on the x402 settlement graph, including buyer count, co-sellers, and multi-seller share.","exampleAgentPrompt":"Pull the basket overlap data for the x402 seller at 0xcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd — I want to see how many buyers they have, which co-sellers share their buyers, the lift scores, and what share of their buyers pay multiple sellers.","exampleUseCases":[{"title":"Competitive co-seller intelligence for merchant","prompt":"Look up the basket overlap for my x402 seller address 0xabababababababababababababababababababababab — who else are my buyers paying, and what's the lift score on those co-sellers?"},{"title":"Multi-seller share benchmark for a host","prompt":"What fraction of buyers on my x402 storefront at api.myshop.com are also paying other sellers? Pull the basket data so I can see the multi-seller share."},{"title":"Partner discovery via shared buyer analysis","prompt":"I want to find potential partner sellers in the x402 ecosystem who share the most buyers with 0x1234567890abcdef1234567890abcdef12345678 — give me the co-seller list with shared buyer counts and lift scores."}],"resultDescription":"A JSON object containing: the number of distinct buyers for the seller, a list of co-sellers each with a lift score and count of shared buyers, the multi-seller share ratio (fraction of buyers who also pay others), plus metadata including the data tier (e.g. 'full'), the as_of date, and the settler frame identifier (e.g. 'settler-eip3009-base').","failureModes":["Unknown or unindexed address/host returns empty or 404 response","Malformed address format causes parameter parsing error","Address with zero settlements returns zero-buyer result","Data freshness lag — as_of date may trail real-time by hours","Low-tier response returned if coverage is partial for the queried address"],"whenToPreferThis":"Use this endpoint when you need co-purchase overlap analytics for a specific x402 seller — specifically buyer counts, co-seller lift scores, shared buyer counts, and multi-seller share ratios drawn directly from the x402 settlement graph. Prefer this over generic blockchain analytics when you need x402-native data stamped with settler frame and coverage metadata. This is the right endpoint for competitive intelligence, partner discovery, or market share analysis within the x402 micropayment ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:33:13.616Z","isFirstParty":false}