{"uid":"cap_GP0Ybe_nSs7wlb9j99l2i","slug":"collectible-arbitrage-scanner-ebay-7388184c","name":"Collectible Arbitrage Scanner (eBay)","description":"Cross-exchange + cross-DEX arbitrage scanner for crypto tokens AND physical collectibles. For crypto: resolves a coin (e.g. BTC/ETH/USDC), compares DEX Screener prices across Base/Arbitrum/Ethereum/Optimism DEXes against CoinGecko CEX spot, computes net-of-gas spread signals (dex-vs-dex, dex-vs-cex, triangular). For collectibles: eBay Browse API listings (PROD eBay key required). x402 pay-per-call on Base USDC.","url":"https://apiwitchcraft.duckdns.org/collect-arb","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["item"],"properties":{"item":{"type":"string"},"market":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sqg-zm7gw0wJVoTTaxqvk","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Scans eBay to identify arbitrage opportunities for collectible items by comparing prices across listings","exampleAgentPrompt":"Can you scan eBay for arbitrage opportunities on first-edition Charizard Pokemon cards and tell me where I can buy low and flip for profit?","exampleUseCases":[{"title":"Flip vintage Star Wars figures","prompt":"Can you check eBay for any arbitrage opportunities on vintage Star Wars action figures? I want to know if there are underpriced listings I could buy and resell for a profit."},{"title":"Find mispriced sports card deals","prompt":"Scan eBay for buy-low sell-high opportunities on 1986 Fleer Michael Jordan rookie cards — are there any listings priced significantly below what others are selling for?"},{"title":"Spot undervalued Pokemon card listings","prompt":"I'm looking to flip some Pokemon cards — can you scan eBay for price discrepancies on holographic first-edition Blastoise and tell me if there's a real arbitrage opportunity right now?"}],"resultDescription":"Returns price comparison data and arbitrage opportunities for the specified collectible on eBay, including price spreads between listings that indicate potential buy-low-sell-high opportunities across the market.","failureModes":["Item not found on eBay — returns empty or null results","Invalid or overly generic item query yields noisy or irrelevant listings","eBay rate limiting or downtime causes upstream failure","Market parameter not recognized returns default or error","Insufficient listing volume for meaningful arbitrage signal"],"whenToPreferThis":"Use this endpoint when you need real-time eBay-specific arbitrage signals for a named collectible item. Prefer it over generic price-lookup APIs when the goal is identifying buy-low/sell-high opportunities rather than just current market price. Best suited for collectibles (cards, toys, memorabilia) where eBay is the dominant resale marketplace.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:47:32.673Z","isFirstParty":false}