CollectablesPulse Value Lookup is a paid API for AI agents from collectablespulse.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Returns current market value by grade/condition with recent sold comparables for any collectible item
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.
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.
GEThttps://collectablespulse.vercel.app/api/collect/valueUse 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.
{
"item": "1952 Topps Mickey Mantle",
"grade": "PSA 8"
}| Field | Type | Description |
|---|---|---|
| itemrequired | string | Collectible description (e.g. '1952 Topps Mickey Mantle') |
| lang | string | lang |
| grade | string | Grade or condition (e.g. 'PSA 10', 'CGC 9.8', 'raw Near Mint') |
{
"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"
}{
"type": "json",
"example": {}
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