Launching in New York City & Los Angeles

Buyers pay less,
Sellers earn more.

Free to start, no card required.

A subscription marketplace for vintage, streetwear and luxury, built city by city around real community.

Resale Is Broken,
But We're Fixing It.

Every other platform takes its cut, then leaves you alone with a stranger and a shipping label. Convincing fakes clear inspection, payments reverse weeks later, and the seller eats all of it. We built the opposite.

Safer
Local
Quieter
Free

TodayYou meet a stranger from the internet, alone, and hope the thing in their hand is real.

Safer transactions.

Verified profiles, 18,000+ recommended Safe Spots scored for day and night, and built-in authentication you run in person before any money moves, with most results back in about 60 seconds.

One deal, start to finish.

Seller

Lists it in under a minute.

Photos in, and the app fills the title, brand, condition and a price range.

Read the photosIdentified the brandSuggested a price range
Creating a listing in the Kolosseum appThe listing on the local feedChoosing a scored safe meetup spotAuthentication result showing an authentic verdictEntrupy certificate of authenticity

Closed beta, and actively evolving.

Somebody is already making that money.

A resale chain buys your piece cheap, runs the same authentication technology we do, then sells it back to the same neighborhood it came from. Watch where the money goes.

The offer

You sell it to a shop.

They offer 20 to 40 percent of what the piece is actually worth. Take it, or carry it home again.

What the piece is worth
You get 20 to 40%

Buy back rates vary by condition, demand and season. A shop hands you cash the same day, which is worth something. It's just worth far less than the 60 to 80 percent it quietly costs you.

Three things have to be true before money changes hands.

1

You meet somewhere safe.

18,000+ recommended public spots, each scored separately for day and night. This is the live map.

Loading spots…Score70+62+under 62
2

You verify it in your hands.

Close-up photos of the stitching, hardware and material go to Entrupy, the system resale shops and pawn brokers already use. No lab, nothing shipped away. Most answers come back in about 60 seconds.

AuthenticCertificate valid one year

Entrupy backs every certificate with a one year financial guarantee, held by Kolosseum as the certificate holder.

Credits per scan
Contemporary 10Designer 15Luxury 25

Credits run $1.50 to $2.50 each, so a scan is about $18 to $38.

3

Both of you confirm it happened.

Check in and both phones confirm you were there. Neither side can close the deal alone.

Completed · #KOL-4417
Meetup verified
Authenticated, one year certificate
Both parties confirmed
Reviews exchanged
Kolosseum took$0

Reviews build the record the next person checks before agreeing to meet you.

Not Another Marketplace.

AI Listing Autofill

Photos in, listing out. Title, brand, category and a price range.

Paid tiers

Discovery That Learns

Swipe one at a time. The feed sharpens as you go.

Every tier

Zero Fees, Both Sides

No commission, no listing fee, no processing cut. We never touch the money.

Everyone

Limits, On Purpose

Caps on outreach beyond your area. Local stays unlimited.

Every tier

Authentication In Person

At the meetup, on an ordinary iPhone. About 60 seconds.

Paid per scan

Safe Meetup Recommendations

18,000+ scored public spots, rated for day and night.

Every tier

Bring your inventory.

We are opening with 100 founding sellers in NYC and 100 in LA, people already reselling in their own communities. You bring your inventory and list it, you tell us what breaks while you sell on it, and you shape the app before it opens publicly. Refer another seller and they start on Max for a month, and you get a free boost.

50+ listings a month keeps founding status and Max features, $10 a month
Reach 100+ and the $10 goes away, everything free
A permanent founding badge, yours even if you slow down later

Your Membership Powers the Platform.

No seller fees, ever. Memberships fund the platform instead, so you never lose a cut of your own sale.

Free
$0/mo
Unlimited local messagesUnlimited local
  • 3 listings/month
  • 5 new conversations outside your area/day5 outside your area / day
  • Full Safe Spot map
Starter
$22/mo
Unlimited local messagesUnlimited local
  • 5 listings/month
  • 10 new conversations outside your area/day10 outside your area / day
  • AI autofill and background removal
Premium
$33/mo
Unlimited local messagesUnlimited local
  • 10 listings/month
  • 20 new conversations outside your area/day20 outside your area / day
  • 1 free boost/month
  • Priority support
Max
$44/mo
Unlimited local messagesUnlimited local
  • Unlimited listings
  • Unlimited conversations everywhereUnlimited everywhere
  • 2 free boosts/month
  • Priority support

Local messaging is always unlimited. Chat freely with anyone within 10 miles on every tier, including Free. Limits only apply when you start a new conversation outside your radius.

Why we cap anything at all. We don't take a cut of your sale, so memberships fund the platform. But the caps do a second job: unlimited outreach and unlimited posting are what turned every other marketplace into a lowball machine with a feed full of junk. Inside 10 miles you're never limited, because that's exactly the local scene we're trying to build. Outside it, capping new conversations and monthly listings means the message you send is one you actually meant to send, and the feed stays worth scrolling.