Take a photo.
Photograph an item or choose images from your library. SERO identifies the details and prepares your own photo.
For the things worth keeping.Selling. Simplified.
One photo. In your collection. Ready for eBay whenever you are.
Try it in your browser. On iPhone, Android or desktop.
One collection. More possibilities.01 / SERO
Your collection
Search your collection
Monkey D. LuffyTrading card · Graded
Game Boy & TetrisIn your collectionKeep it. Or pass it on.Your photos and details stay together.
CollectionSellProfile
From photo to listing draftReview. Set your price. You approve.
Made for your collectionTrading cardsGraded cardsRetro gamesManga & Comics
Less typing. More collecting.
From your shelf to its next chapter.
Catalog it once. Enjoy your collection. Sell when the time is right.
Keep it together.
Photos, notes, purchase price and market value belong with your item. Check the identification and add what matters to you.
Ready for eBay.
Build a draft from your collection. Review the title, condition, photos and price. Publish only when you approve.
Game Boy & Tetris
Retro games · In your collection
Your eBay priceSet your price
Listing formatBuy it now
Condition & shippingReview →
Slide to unlock
List nowIllustrative preview · Try it in SERO
Your item. All in one place.
From keeping it to passing it on.
Your collection is your starting point. Open an item and edit its photos, title, condition and your eBay price in one place.
- Review listing: a guided path to publishing
- List now: unlock first, then tap to publish
- Photos, notes and purchase price stay with your item
A clearer starting point.
A value needs evidence.
SERO looks for comparable market data. When reliable evidence is missing, the market value stays unknown. Your selling price is always your choice.
AI estimates for games and everyday items are labeled separately as estimates.
Example · not enough comparisons
Value unknown
Rare does not automatically mean valuable. Edition, condition and real comparisons make the difference.
Your selling priceYou decide
Our Vision
Your pieces.
Your decision.
Collecting should feel good. SERO connects cataloging, keeping track and selling, starting with eBay. Nothing goes live without your approval.
Does anything go live without my approval?
No. SERO prepares a draft first. You review the listing and explicitly approve publishing to eBay.
What can I sell with SERO?
The focus is trading cards, graded cards, retro games, manga and comics. Check the identified edition and condition before listing.
Do I need an eBay account to start?
You can explore SERO and capture photos as local guest drafts. Sign in to save your collection to your account. Connect eBay when you want to sell.
What does SERO cost?
Start with a free allowance. Additional features and allowances depend on your plan. Current terms are shown before purchase. eBay fees are separate.
Is SERO in the App Store?
The iPhone version is being prepared for the App Store. Until release, use SERO in your browser and add it to your Home Screen.
What happens to my photos?
Your photos are stored for your collection and processed for recognition. When you publish on eBay, the selected images are transferred. See the privacy policy for details.
Add to Home Screen
- iPhone: open SERO in Safari, choose Share, then Add to Home Screen.
- Android: open SERO in your browser and choose Add to Home screen from the menu.
Your next find is waiting.
Start with a photo. Take it from there.