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CollectablesPulse Provenance Research
x402
CollectablesPulse Provenance Research is a paid API for AI agents from collectablespulse.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).
Returns ownership history, Art Loss Register checks, and authenticity documentation for a collectible item
Price / call$0.1
Success—
StatusUnknown
How this service works
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.
Output
A structured report containing the item's ownership history (chain of custody), Art Loss Register check results indicating whether the item has been flagged as stolen or missing, and any available authenticity documentation supporting the item's legitimacy
Example use cases
Example prompt
“Can you pull the full provenance report for a 1952 Topps Mickey Mantle baseball card — I need the ownership history, any Art Loss Register flags, and whatever authenticity documentation is available before I make an offer?”
Technical details
Endpoint
GEThttps://collectablespulse.vercel.app/api/collect/provenanceWhen to prefer
Use this endpoint when a collector, appraiser, or investor agent needs to verify the legitimacy and ownership history of a collectible prior to purchase, sale, or appraisal — especially when Art Loss Register checks or authenticity documentation are required. Prefer this over general web search when structured provenance data, stolen-item registry verification, and documented chain of custody are needed in a single call.
Side effects
- Item not found in provenance databases — returns empty or partial results
- Art Loss Register check unavailable for certain item categories
- Insufficient item details provided to identify the specific collectible
- External registry services temporarily unavailable — partial data returned
- Item description too vague to return accurate provenance chain
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| itemrequired | string | Collectible description (e.g. 1952 Topps Mickey Mantle) |
| lang | string | Response language (default en) |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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