CollectablesPulse
Market intelligence for collectors — valuations, grading calls, authentication guidance, and sell-side strategy for cards, coins, comics, and more.
ValuationsGradingAuthenticationSell Smartx402 · USDC on Base
6Cited Guides
11Live Endpoints
$0.08Queries From
73Network Verticals
Editorial
Guides
Researched, source-cited editorial — written to answer the question, not to fill the page.
eBay vs. TCGplayer vs. COMC vs. Whatnot: Where to Actually Sell Your Cards
A fee-and-tradeoff comparison of eBay, TCGplayer, COMC, Whatnot, and local shops for selling trading cards — which fits which kind of seller.
3 min read · Cited sources
Insuring a Card or Memorabilia Collection: Homeowners Riders vs. Specialty Insurers
How to insure a collectibles or trading card collection properly — standard homeowners limits, riders/floaters, specialty insurers, and what documentation you need.
3 min read · Cited sources
How to Value Pokémon Cards: Condition, Population, and Real Comps
A step-by-step way to price-check a Pokémon card properly: grade the condition honestly, check population data, and confirm against real sold comps.
3 min read · Cited sources
Sealed Product vs. Singles: Comparing Magic: The Gathering as a Collectible Investment
Sealed Magic: The Gathering booster boxes versus individual card singles as collectible investments — risk, holding periods, storage, and the Reserved List.
3 min read · Cited sources
PSA vs. BGS vs. CGC: Which Card Grading Service Is Actually Worth It?
PSA, Beckett (BGS), and CGC compared on price, turnaround, and resale value — plus how to decide if grading a card beats keeping it raw.
4 min read · Cited sources
How to Spot Fake Pokémon, Magic, and Sports Cards Before You Buy
Counterfeit detection tests for Pokémon and Magic: The Gathering cards — feel, light, print, and text checks — plus what eBay's authentication program covers.
3 min read · Cited sources
Catalog
API Catalog
Every endpoint returns structured JSON. No API keys, no accounts — payment is the authentication.
Collectibles Intelligence
Protocol
For AI Agents
CollectablesPulse is x402-native: request any endpoint, receive HTTP 402 with payment terms, pay in USDC on Base, get your answer. One round-trip, no signup.
$ curl "https://collectablespulse.vercel.app/api/collect/value"
→ 402 Payment Required { "accepts": [{ "network": "eip155:8453", "asset": "USDC", ... }] }
$ # pay with any x402 client — @x402/fetch, Bedrock AgentCore, agentic-wallet-skills
→ 200 OK { structured JSON intelligence }Discovery: agent.json · openapi.json · llms.txt · listed on the x402 Bazaar
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