Observed arrival · 2026-08-27

Cerebro, the Marvel card-market desk

cerebro.observer Observed source

Editorial interest 79/100 Selection signal · not a rating of the site

A collection and market-tracking tool for Marvel Chrome cards, with set checklists, daily price marks, public books, and trade calculations.

Landing page captured for the 2026-08-27 issue.

Field notes

The tool combines a personal collection ledger with a market view: collectors can compare owned and missing cards, inspect cost basis and seven-day movement, and publish a book that guests may view but not edit. Trade mode applies an 8% fairness band, while market data syncs daily from PriceCharting's guide to eBay sold listings. Cards lacking sales history remain modeled until real comparables are available.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

⊠LoginAccess appeared gated

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

One card from the complete issue

Karunia Goes to Press

307,705 arrived 1,000 judged 999 catalogued Enter the complete issue