Grail Agents are your personal agents to scan the market, pull real comps, and tell you exactly when a card is worth buying — and what to pay.
No spam. Just a heads-up when we launch.
Try an Agent — Live Demo
Try: Ja Morant 2019 Prizm PSA 10 · Michael Jordan 1986 Fleer PSA 9
What it does
Most collectors rely on gut feel and noisy eBay searches. GrailAgent gives you a structured read on every deal.
We pull sold listings, remove outliers, and weight by recency so your fair value is actually fair.
A single 0–100 score that factors price, comp confidence, liquidity, and market trend. One number to act on.
Set a target card and threshold. We watch the market 24/7 and alert you the moment a deal crosses your score.
Every score comes with a human-readable explanation — not a black box. Know exactly why a deal is or isn't worth it.
How it works
Describe what you're looking for. We handle the rest.
Type naturally — player, year, set, grade, parallel. Our identity agent figures out the rest.
Live sold data from eBay and major marketplaces. Filtered, normalized, and weighted by recency.
A fair value range, a 0–100 score, and a plain-English reason. Strong Buy, Good Value, Fair, or Pass.
Save the card and your score threshold. We monitor listings and alert you the moment a deal hits.
We're building in the open and launching soon. Get on the list for early access.