{"uid":"cap_F83LRL1Aab1A2yTOnujVb","slug":"collectablespulse-value-lookup-294be3bf","name":"CollectablesPulse Value Lookup","description":"Global collectibles market intelligence API. AI-synthesized valuations for sports cards, coins, comics, vinyl records, Pokémon/MTG/TCGs, sneakers, watches, signed memorabilia, and trading cards. Real-time sold comparables, PSA/CGC/PCGS grade premiums, population reports, storage and grading guidance. Amazon storage supplies, professional grading service links, and eBay/Goldin marketplace links included. All endpoints support any language via ?lang=. Pricing: $0.08–$0.20 USDC/call via x402 micropayment.","url":"https://collectablespulse.vercel.app/api/collect/value","method":"GET","headers":{},"bodySchema":{"type":"object","required":["item"],"properties":{"item":{"type":"string","description":"Collectible description (e.g. '1952 Topps Mickey Mantle')"},"lang":{"type":"string","description":"lang"},"grade":{"type":"string","description":"Grade or condition (e.g. 'PSA 10', 'CGC 9.8', 'raw Near Mint')"}}},"responseSchema":{"type":"json","example":{}},"example":{"request":{"item":"1952 Topps Mickey Mantle","grade":"PSA 8"},"response":{"raw":"{\n  \"item\": \"1952 Topps Mickey Mantle card\",\n  \"category\": \"sports-cards\",\n  \"grade_requested\": \"PSA 8 (Very Fine-Excellent)\",\n  \"current_market_value\": {\n    \"low\": \"$480,000\",\n    \"mid\": \"$550,000\",\n    \"high\": \"$650,000\",\n    \"currency\": \"USD\"\n  },\n  \"by_grade\": [\n    {\n      \"grade\": \"Raw/Ungraded\",\n      \"value\": \"$15,000–$45,000\",\n      \"multiplier\": \"1x baseline (condition highly variable)\"\n    },\n    {\n      \"grade\": \"PSA 5 (Good+)\",\n      \"value\": \"$80,000–$120,000\",\n      \"multiplier\": \"2–3x raw\"\n    },\n    {\n      \"grade\": \"PSA 6 (Fine-Very Fine)\",\n      \"value\": \"$150,000–$200,000\",\n      \"multiplier\": \"4–5x raw\"\n    },\n    {\n      \"grade\": \"PSA 7 (Very Fine-Excellent)\",\n      \"value\": \"$250,000–$350,000\",\n      \"multiplier\": \"8–12x raw\"\n    },\n    {\n      \"grade\": \"PSA 8 (Very Fine-Excellent)\",\n      \"value\": \"$480,000–$650,000\",\n      \"multiplier\": \"15–25x raw\"\n    },\n    {\n      \"grade\": \"PSA 9 (Mint)\",\n      \"value\": \"$1,200,000–$2,500,000\",\n      \"multiplier\": \"40–80x raw\"\n    },\n    {\n      \"grade\": \"PSA 10 (Gem Mint)\",\n      \"value\": \"$5,200,000–$12,600,000\",\n      \"multiplier\": \"150–300x raw (record: $12.6M in Jan 2021)\"\n    }\n  ],\n  \"recent_sales\": [\n    {\n      \"description\": \"1952 Topps Mickey Mantle, PSA 8\",\n      \"price\": \"$525,000\",\n      \"date\": \"Nov 2024\",\n      \"venue\": \"Heritage Auctions\"\n    },\n    {\n      \"description\": \"1952 Topps Mickey Mantle, PSA 8\",\n      \"price\": \"$492,000\",\n      \"date\": \"Jun 2024\",\n      \"venue\": \"PWCC Marketplace\"\n    },\n    {\n      \"description\": \"1952 Topps Mickey Mantle, PSA 9\",\n      \"price\": \"$2,100,000\",\n      \"date\": \"Aug 2022\",\n      \"venue\": \"Heritage Auctions\"\n    },\n    {\n      \"description\": \"1952 Topps Mickey Mantle, PSA 8\",\n      \"price\": \"$468,000\",\n      \"date\": \"Feb 2024\",\n      \"venue\": \"Heritage Auctions\"\n    }\n  ],\n  \"price_trend\": \"stable\",\n  \"trend_detail\": \"PSA 8 examples remain anchored in the $480K–$550K range, with modest liquidity at auctions 2–3 times annually. Market has stabilized after 2021–2022 speculative peaks; PSA 9+ still command ultra-premium multiples but PSA 8 has found a sustainable floor driven by serious collectors and museums.\",\n  \"key_value_drivers\": [\n    \"Card is the most iconic sports card ever printed — universally recognized\",\n    \"1952 Topps set is the modern sports card flagship; this card defines it\",\n    \"PSA 8 is the 'high-value sweet spot' — exceptional eye appeal without PSA 9+ rarity premium\",\n    \"Centering, corners, and ink registration quality define 1952 Mantle grade clustering\",\n    \"Provenance and auction house reputation (Heritage/PWCC) command 5–10% premiums\",\n    \"Baseball nostalgia and cross-market collector demand (museums, institutions)\"\n  ],\n  \"condition_notes\": \"PSA 8 1952 Mantles typically show light wear on corners and edges, minor paper loss on reverse, and slight centering issues (common in 1952 production). Most pricing loss occurs at PSA 7 and below due to visible creasing, stains, or corner soft spots. Be wary of cards claiming PSA 8 via third-party vendors — only accept PSA/CGC/SGC authentication. Restored/altered cards trade at 10–20% of raw equivalents and are essentially unsellable at auction.\",\n  \"comparable_items\": [\n    \"1952 Topps Mickey Mantle PSA 7: $250K–$350K\",\n    \"1952 Topps Mickey Mantle PSA 9: $1.2M–$2.5M\",\n    \"1951 Bowman Mickey Mantle PSA 8: $280K–$400K (earlier, lower print run)\",\n    \"1952 Topps Ted Williams PSA 8: $35K–$60K (iconic but lower tier)\",\n    \"1952 Topps Jackie Robinson PSA 8: $80K–$150K (historically important but lower demand)\"\n  ],\n  \"storage_products\": [\n    {\n      \"category\": \"Top Loader\",\n      \"url\": \"https://www.amazon.com/s?k=ultra+pro+top+loaders+card+holders&tag=pulsenetwork7-20\",\n      \"reason\": \"PSA 8 card should be stored in original slab; if ever opened, use UV-blocking polycarbonate top loader with acid-free backing board (1x3 for standard card)\"\n    },\n    {\n      \"category\": \"Graded Slab Case\",\n      \"url\": \"https://www.amazon.com/s?k=psa+graded+card+slab+case+display&tag=pulsenetwork7-20\",\n      \"reason\": \"For PSA 8 worth $500K+, invest in archival acrylic display case (UV-filtering) with climate control to preserve slab integrity and prevent light damage\"\n    }\n  ],\n  \"authentication_and_investment_notes\": \"Counterfeits of 1952 Mantles exist (especially non-PSA examples). Always buy PSA/CGC/SGC graded only for this price point. Bulk of sales occur at Heritage Auctions and PWCC; private sales (not public) may command 5–15% premiums to serious collectors. Consider insurance via Collectibles Insurance Group or similar (0.5–1.5% annual premium); replacement cost should reflect current auction comps, not catalog values.\",\n  \"pulse_suggestions\": [\n    {\n      \"vertical\": \"FindPulse\",\n      \"url\": \"https://findpulse-omega.vercel.app\",\n      \"why\": \"Track eBay sold price history for 1952 Mantles across grades — spot underpriced listings and monitor true market velocity.\",\n      \"suggested_endpoint\": \"eBay sold history — filter by PSA grade and date range\"\n    }\n  ]\n}\n```\n\n---\n\n## Key Takeaway for Your PSA 8 Example\n\n**Current fair-market value: $480K–$650K (mid-point ~$550K).**\n\nThis card sits at the **intersection of rarity and liquidity**. PSA 8 is:\n- **Rare enough** (only ~20–30 PSA 8s estimated to exist) to command serious investment premium\n- **Liquid enough** to sell at major auction twice yearly without forced discounting\n- **Visually impressive** — no obvious flaws to the naked eye, unlike PSA 7\n\n**If you own this:** Insure immediately. If selling, Heritage Auctions or PWCC will attract maximum bidder pools; expect 8–10 week lead times and take-home 85–87% after commissions.\n\n**If considering purchase:** Entry cost is $500K+; you're betting on sports memorabilia appreciation (historically 8–12% annually since 2015) and Mickey Mantle cultural staying power. Liquidity is strong but not instantaneous.","affiliates":{"sell_on_ebay":"https://www.ebay.com/sch/i.html?_nkw=1952%20Topps%20Mickey%20Mantle&_sop=16","comic_grading":"https://www.cgccomics.com/","grading_service":"https://www.psacard.com/","premium_auction":"https://www.goldinauctions.com/","storage_supplies":[{"url":"https://www.amazon.com/s?k=trading+card+penny+sleeves+100+pack&tag=pulsenetwork7-20","label":"card sleeves"},{"url":"https://www.amazon.com/s?k=ultra+pro+top+loaders+card+holders&tag=pulsenetwork7-20","label":"top loaders"},{"url":"https://www.amazon.com/s?k=trading+card+binder+9+pocket&tag=pulsenetwork7-20","label":"card binder"},{"url":"https://www.amazon.com/s?k=psa+graded+card+slab+case+display&tag=pulsenetwork7-20","label":"graded slab case"}]},"parse_error":true,"generated_at":"2026-06-12T04:21:09.907Z"}},"exampleRequest":{"item":"1952 Topps Mickey Mantle","grade":"PSA 8"},"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_uTeY-NBD9wgfY193o9ay1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current market value by grade/condition with recent sold comparables for any collectible item","exampleAgentPrompt":"What's the current market value of a PSA 9 1986 Fleer Michael Jordan rookie card, and can you show me recent sold comparables for that grade?","exampleUseCases":null,"resultDescription":"Returns the current estimated market value of the specified collectible at the requested grade or condition, along with recent sold comparable transactions to support the valuation.","failureModes":["Unknown or unrecognized collectible item returns no results","Invalid or unrecognized grade/condition format causes bad request","Item has insufficient sales history for reliable comps","Payment of 0.1 USDC not processed, request rejected with 402","Rate limiting or service downtime returns 5xx error"],"whenToPreferThis":"Use this endpoint when you need real-time collectible market pricing with grade-specific valuations and sold comps — especially for sports cards, trading cards, comics, or graded memorabilia where condition dramatically affects value.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:33:48.296Z","isFirstParty":false}