Elite plan only. Open any PSA-graded listing in the eBay Sniper. The lightbox shows a Verify this slab panel — click it.
What happens
- We pass the listing photos to Claude vision
- Claude reads the cert number off the PSA label
- We look up that cert in PSA's database
- We compare what PSA returned (card name, set, grade, year) to what the listing says
- You get one of five outcomes
The five outcomes
- ✓ Verified authentic — cert exists and every field matches the listing
- ⚠ Mismatch detected — cert exists but a field disagrees (e.g. PSA says PSA 9, listing says PSA 10)
- 🚨 Cert not found — the cert number isn't in PSA's database, possible counterfeit
- Couldn't read cert — vision didn't find a cert number in the photos; you can type it manually
- Couldn't reach PSA — PSA's site is down or rate-limited; try again in a minute
Limitations
- PSA-only today. BGS, CGC, and TAG link to their own verifier sites instead.
- Vision can fail when listing photos are low-res or the PSA label is obscured. The manual entry field is always available.
- Rate limit: 20 verifications per day per account.
What it can't tell you
A cert match means the slab is legitimately PSA-graded, not that the card inside is the original. Slab tampering (re-graded cards in a fake shell) is rare but possible. Verification dramatically reduces the risk of fakes but doesn't eliminate it.