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Why We Built Real Pricing In

A grading app is only as honest as the numbers behind it.

My father priced coins with a Red Book, a loupe, and a lamp pulled close. The book was right until the day it wasn't. Here's how we solved the same problem for a phone, and why we licensed rather than guessed.

Josh
Josh Lowry
Head of Product, CoinAiLyzer
PublishedSeptember 5, 2026 Read5 minutes FiledDesign notes

CoinAiLyzer provides educational grade estimates and research context. It does not certify, authenticate, appraise, or provide financial advice.

01 - The coin table

Back in the early 2000s, I noticed my father had started picking up a few coins.

There was this thing called the Red Book he'd flip through from time to time, a tiny magnification loupe in his eye and a lamp pulled close as he worked through a bag of pennies from the bank. He was in construction, and he'd slowly accumulated more and more coins across an ever growing contraption of leftover wood that became his coin table. Over time came the little square foldable holders where he'd staple coins into place.

I didn't think much of it until he opened his own coin shop in town. Soon it wasn't just coins, there were medals, paper money, and all sorts of other collectibles I didn't recognize or know the first thing about.


02 - The data problem

Two worlds that turned out to be one

If you'd asked me twenty five years ago whether I'd end up in the coin industry, I would have laughed. Partly because I was barely a teenager, but partly because I had such a strong pull toward technology and data and organizing things that I couldn't see how the two worlds fit together.

The data piece turns out to be the crucial part. To properly price a coin, you need to know what other coins in similar condition and with similar markings are actually worth. You can get some sense of that from eBay, and most enthusiasts know eBay pretty well.

If someone really wants a specific coin, they'll pay a hefty premium that isn't necessarily realistic as an indicator of the coin's actual value.

That's the trouble with both eBay and auctions. One motivated bidder sets a number, and the number goes into the record as if it were the market.

Greysheet · licensedToday
1921 Morgan Dollar
VAM-1B · MS-63
$1,240
Dealer bid for this grade and variety
UpdatedDaily BasisDealer market
Figure 01 - Same coin, two sources
Comps
A range, wide enough to be useless, anchored by whoever wanted it most that week.
Sheet
A dealer-market number for that exact grade and variety, refreshed daily so metal volatility doesn't quietly age it.
Why it matters
A grade estimate without a defensible price attached is trivia. The number is what makes it a decision.
Illustrative figures shown for comparison of source type, not live quotes.
03 - Five hundred pages

The joke nobody wanted to be the first to stop laughing at

When my father came to me with the idea for CoinAiLyzer, I couldn't get the data question out of my head. We needed prices, and we needed them from a reliable source, especially early on as we were building the app.

We joked about scanning all five hundred plus pages of the Red Book, and then looked at each other nervously, hoping no one would actually suggest we do it. Even if we did scan it, the price of metals is volatile enough that we'd need to rescan it every single day just to keep up.

As we got closer to launch earlier this year, I got more and more concerned. Where were we going to get accurate, frequently updated prices that actually reflected the market, so users had what they needed to price their coins?

04 - The answer

But why guess when you can have the best?

Once we realized Greysheet pricing was available to license, we built it directly into the app.

Daily
Prices refresh every day, so metal volatility doesn't throw off your decision making
Years
Priced across the full run, not a single representative date
Mint marks
Because the mark is often the whole difference in value
VAMs
Varieties and other specialties, priced as their own thing
05 - In the app

Faster than the Red Book, and it never goes stale

What you have at your fingertips now is the ability to see prices across years, mint marks, varieties, VAMs, and other specialties, just by opening CoinAiLyzer on your phone. Not only can you get those prices, you get them updated daily, so volatility doesn't throw off your decision making.

Ask around and you'll probably find it's faster than flipping through the Red Book the way my father did back in the early 2000s. And pricing isn't even the only feature that comes with the app.

If you haven't tried CoinAiLyzer yet, open it up and take a look at Greysheet pricing built right in. It comes standard with your subscription, and on its own, it pays for itself. And it's not even the main feature.

Your first three scans are free

See live pricing for yourself.