The Hub for Autograph Card Collectors
From on-card RPAs to certified sticker autos, Mantel is where autograph collectors track values, share pulls, and find the next signature worth chasing.
From the Community
Recent posts from Autograph Cards collectors on Mantel
Join the Autograph Cards Community
Share your collection, compare comps, browse live marketplace listings, track trends, and connect with collectors who care about the hobby and the market behind every card.
SLAM Scores & Marketplace
SLAM is a liquidity score from 0–100 that measures how easily a card can be bought or sold at a fair price. It combines recent sales data, trading volume, and market depth into a single number. Listings are aggregated from eBay and Fanatics Collect.
90–100 Cash
70–89 Liquid
40–69 Inventory
0–39 Collection

Inventory
Sellable with patience
George Lombard Jr. - 2024 Bowman Chrome Prospects Baseball
Avg Sale
$268
Sales
31
Grade
PSA 10
View in app →

Inventory
Sellable with patience
Aidan Miller - 2024 Bowman Chrome Prospects Baseball
Avg Sale
$177
Sales
35
Grade
PSA 10
View in app →

Collection
Buy it because you love it
AJ Ewing - 2023 Bowman Draft Chrome Baseball
Avg Sale
$153
Sales
9
Grade
PSA 10
View in app →
A Community That Lives for Ink
Autograph cards are the most exciting pulls in the hobby, and the collectors who chase them know every detail matters. On Mantel, you'll find collectors who can tell you the difference between an on-card auto and a sticker auto at a glance — and why one commands double the price. Whether you're ripping Panini National Treasures for basketball RPAs, hunting Topps Chrome baseball autos, or chasing Upper Deck hockey patch autos, this is where the auto collectors connect.
The autograph card market spans every sport and every price point. A certified Wembanyama RPA might move for five figures, while a solid on-card Bowman Chrome 1st auto of a baseball prospect could be under fifty bucks. Mantel's community covers the full spectrum — from high-end collectors chasing inscription autos and one-of-ones to rippers hoping the next pack holds an unexpected signature.
See What Collectors Are Pulling and Buying
Post your auto pulls and see what the community is landing. Follow the buzz around new releases — which National Treasures football RPAs are surfacing, whose Bowman Chrome auto is getting attention before a call-up, and which hockey rookies have the cleanest signatures. Auto collectors on Mantel share the hits, discuss authentication details, and flag when redemptions are finally getting fulfilled.
Live Marketplace Listings in One Feed
Stop bouncing between eBay tabs trying to find the right auto. Mantel pulls real-time listings from eBay and Fanatics Collect into a single feed, so you can browse autograph cards across baseball, basketball, football, and hockey in one place. Search by player, product, or parallel — and find on-card autos, sticker autos, RPAs, and inscription autos without opening twenty browser tabs.
Connect your eBay seller account to list your auto inventory directly to collectors who are actively hunting signatures.
Comps That Tell the Real Story
Listed prices lie. Comps don't. The value gap between an on-card auto and a sticker auto of the same player can be significant, and the only way to know the real difference is actual sales data. Mantel shows you what autograph cards are actually selling for across variations, so you can price your buys and sells with confidence.
Track Price Movements Over Time
A rookie's first on-card auto in a premium product can spike overnight when they win Rookie of the Year or make an All-Star team. Mantel's market trends show you how auto card prices shift across days, weeks, and months — so you can catch momentum on breakout players before the market fully prices it in.
Go deeper with advanced analytics that separate genuine demand from speculative relisting. Know whether an auto is actually trading or just sitting at high ask prices with no takers.
SLAM Scores: One Number, Real Market Signal
SLAM scores combine recent sales, price direction, and real liquidity into one number. For autograph cards, a strong SLAM score means collectors are actually buying at the current price — not just listing and relisting. Use SLAM scores to compare autos across sports, identify undervalued signatures, and confirm that demand is real before you pull the trigger.
What Makes Autograph Cards Unique
On-Card vs. Sticker Autos — On-card autographs are signed directly on the card surface and almost always carry a premium. Sticker autos use a pre-signed label applied during production. The market consistently values on-card higher, sometimes by 2-3x or more for key players.
Rookie Patch Autos (RPAs) — The RPA combines a rookie's first autograph with a game-worn or player-worn patch in a single card. Products like National Treasures (football, basketball) and The Cup (hockey) produce the most coveted RPAs in the hobby.
Inscription Autos — Some products feature autographs with handwritten inscriptions like jersey numbers, stats, or personal messages. These are rarer than standard autos and add a layer of uniqueness that collectors pay up for.
Auto Authentication — Certified autographs from licensed products (Topps, Panini, Upper Deck) carry built-in authentication. For vintage or non-certified autos, third-party authentication from PSA/DNA, Beckett, or JSA adds value and buyer confidence.
Start Collecting Smarter
- Join Mantel — Connect with autograph collectors who track autos across every sport, product, and price point
- Search live listings — Browse on-card autos, sticker autos, and RPAs from eBay and Fanatics Collect in one feed
- Check comps — See what autos are actually selling for across variations before you buy or sell
- Follow the market — Track auto price trends and SLAM scores to find undervalued signatures
- Set alerts — Add specific autograph cards to your Wish List and get notified when they appear
Join the Autograph Cards Community
Share your collection, compare comps, browse live marketplace listings, track trends, and connect with collectors who care about the hobby and the market behind every card.
Guides & Resources
What Is a SLAM Score? →
Learn how SLAM scores rate card market activity from 0-100 and what the four score tiers mean.
How to Start Collecting Sports Cards →
A complete guide to card types, grading, buying, selling, and building your collection.
What Do Card Grades Mean? →
Learn what PSA 10, BGS 9.5, and other grades actually mean for card value and condition.
What's the Difference Between PSA, Beckett, SGC, CGC? →
Compare the major grading services and understand which one is right for your cards.
How to Get a Card Graded →
Step-by-step guide to submitting your cards for professional grading.
How to Get Cards Graded at the Show →
Tips for on-site grading submissions at card shows and conventions.
How to Protect Your Cards →
Best practices for sleeves, toploaders, and long-term card storage.
10 Tips for Navigating a Card Show →
Make the most of your next card show with these practical tips.
Sports Card Collectors Glossary of Terms →
From "hit" to "RPA" — a complete glossary of the hobby's most common terms.

