{"uid":"cap_w5YXMkdXp0PWqg1Yy189m","slug":"card-comps-x402-982762ad","name":"Card Comps — x402","description":"A pay per call service providing sports card market research data on the Base network.","url":"https://eager-marvel-a2g2.here.now/deals","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","properties":{"limit":{"type":"number","description":"Max deals to return, 1-40. Default 20."},"min_pct":{"type":"number","description":"Maximum vs_median_pct to include, -80 to 0. Default 0 (at or below median). Example -5 means at least 5% below median."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"paid":true,"items":[{"card":"Julio Rodriguez #222 [Rookie] 2022 Topps Chrome","alert":true,"player":"Julio Rodriguez","slab10":1750,"last_7d":0,"category":"baseball","last_raw":151.99,"flip_score":119.6,"raw_median":675,"mult_10_raw":2.59,"product_url":"https://www.pricecharting.com/game/baseball-cards-2022-topps-chrome/julio-rodriguez-222","last_raw_date":"2026-07-31","vs_median_pct":-77.5,"velocity_delta_7d":0}],"min_pct":-5,"returned":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_csof5XKsfqmGCxy9z6aEA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns sports card market deal alerts showing listings priced significantly below median market value, filterable by discount threshold and result count.","exampleAgentPrompt":"Show me up to 30 sports card deals where the listing price is at least 10% below the median market value — I'm looking for flip opportunities.","exampleUseCases":[{"title":"Flipping underpriced rookie cards","prompt":"Find me up to 20 sports cards that are priced at least 15% below their median market value — I want to focus on rookie cards worth flipping."},{"title":"Broad deal scan for card resellers","prompt":"Pull the top 40 sports card deals available right now regardless of discount depth, so I can browse everything currently below median pricing."},{"title":"Tight arbitrage threshold screening","prompt":"Show me any sports cards listed at least 25% below their median sale price — I only want the deepest discounts, limit results to 10."}],"resultDescription":"A JSON object with a list of deal items, each containing the card name, player, category, last raw sale price and date, 7-day sale count, raw median price, a flip score, the slab (PSA 10) price, a percentage discount vs median (vs_median_pct), velocity delta, an alert flag, and a link to the PriceCharting product page. Also returns the applied min_pct filter and total count returned.","failureModes":["Invalid limit value outside 1–40 range returns an error or default","Invalid min_pct value outside -80 to 0 range returns an error or default","Payment not processed (x402 payment failure) returns 402 with no data","No deals match the filter criteria — empty items array returned","Service temporarily unavailable returns 5xx error"],"whenToPreferThis":"Use this endpoint when you need real-time sports card deal discovery based on price-vs-median analysis, especially for identifying flip or arbitrage opportunities. It's ideal when you want ranked, filtered results with flip scores and slab prices rather than raw price history or general card lookup. Prefer this over general sports card search APIs when the goal is specifically identifying underpriced listings.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:41:44.659Z","isFirstParty":false}