Built by a collector, tired of guessing
CardLedgerAI started with a simple frustration: every card-tracking tool out there either made you enter everything by hand, or handed you a "value" with no way to know if it was real.
Founded in Philadelphia
CardLedgerAI is built by Mike Johnston, a website and app designer and lifelong card collector based in Philadelphia, PA. The goal from day one: a ledger that tells you the truth about your collection — what's actually verified, what isn't, and what's still being built.
That means no invented AI confidence scores, no fake "match found" badges, and no pretending an integration works when an API is still pending approval. If something isn't live yet, the app — and this site — will say so.
Honesty over hype
A card is either verified against the Trading Card Database or it's marked unverified. No in-between.
Built for real workflows
From a single rookie card to a full autofeed-scanner batch, the app matches how collectors actually work.
Ship what's real
Features go live when the integration behind them actually works — not before.
Collector-first
Every decision starts from "would I trust this with my own collection?"
Questions, feedback, or partnership ideas
Let's talk
Whether it's a bug, a feature request, or a marketplace/grading partnership idea — reach out directly.