Stamp value checker & identifier
Point your camera at any postage stamp and Minti identifies the country, denomination, and issue, helps place it to a catalog number, and shows what it's worth from catalog values and recent eBay sold data. Record it, track it, and sell it, all in one app.
How much is your stamp worth?
Book prices go stale the moment they're printed. Minti checks what stamps are actually selling for right now by combining catalog values with recent eBay sold listings, so a classic definitive, a commemorative set, or a hard-to-place foreign issue all get a value grounded in real sales.
- Value from catalog values and recent eBay sold comps
- Used and mint pricing so you can see how condition changes the number
- Price history across 7-day, 1-month, 6-month, and 1-year windows
Identify any stamp in seconds
Not sure what you're holding? Minti's AI reads the design, country, denomination, and inscriptions to identify the issue and helps place the stamp to a catalog number, and it flags notable varieties and errors. No manual page-by-page searching.
- Recognizes the country, denomination, and issue from the design
- Helps place the stamp to a catalog number for a priced record
- Flags notable varieties and errors that change the value
What condition means for stamps
With stamps, condition is often the whole story. Two copies of the same issue can be worth very different amounts depending on how they present, so Minti records the factors collectors actually judge.
- Centering: how evenly the design sits within the margins, from off-center to perfectly balanced
- Gum: mint never hinged (MNH) commands the most, followed by hinged, then no gum or used
- Perforations: full, intact perforation teeth versus short, pulled, or trimmed perfs
- Cancellations: on a used stamp, a light, clean, or dated cancel reads better than a heavy smudge, and some cancels add interest
Organize your stamp collection
Keep your stamps in albums and folders that mirror how you actually collect. Every item carries its images, condition, issue details, and current value, and your portfolio total updates as the market moves, so you always know what your collection is worth.
Buy, sell & auction in the marketplace
When you're ready to trade, list any stamp as a fixed-price Buy It Now or a live auction with anti-snipe extensions. Make and receive offers, accept secure payment through Stripe, and ship with a pre-paid label. Funds are held safely until the buyer confirms delivery.
Stamp FAQ
How do I find out what my stamp is worth?
Scan the stamp with Minti. The AI identifies the country, denomination, and issue, then values it using catalog values and recent eBay sold listings so you see what similar stamps are actually selling for right now, not an outdated book figure.
Can Minti identify the country, issue, and catalog number?
Yes. Minti reads the design, country, denomination, and inscriptions to identify the issue and helps place the stamp to a catalog number, and it flags notable varieties and errors that change the value.
Does condition like gum and centering matter?
Yes, a lot. Centering, gum condition such as mint never hinged versus hinged, intact perforations, and whether a stamp is used or mint all move the value significantly, and a light or favorable cancellation can matter too. Minti records these condition factors on every item.
Is Minti free to use?
Yes. Minti is free to download and includes a monthly allowance of AI scans, plus organizing, value tracking, and marketplace access. Paid tiers raise the scan and storage limits for larger collections.
How do I sell stamps on Minti?
List any stamp as a fixed-price Buy It Now or a live auction, receive offers from buyers, and accept secure payment through Stripe. Minti generates a pre-paid shipping label and holds funds until the buyer confirms delivery.