Launching in New York City & Los Angeles
A local-first marketplace for vintage, streetwear, and luxury — built around safety, community, and zero seller fees.
Who We Are
Kolosseum is a subscription-based marketplace for vintage, streetwear, and luxury — built city by city around community, authentication, and trust. No seller fees. No buyer fees. Just real people, real items, and real deals.
The Problem
Verified profiles, 800+ mapped Safe Spots, and on-the-spot authentication powered by Entrupy AI — 99.86% accuracy, results in 60 seconds.
Unlimited messaging within 10 miles on every tier. Meet up today — no shipping, no waiting, no strangers from across the country.
Limits on out-of-area outreach mean every conversation carries real intent — not mass-sent lowballs.
No seller fees. No buyer fees. No one is covering platform cuts — both sides keep more.
How It Works
Photos, price, publish. Under a minute.
Chat directly with local buyers or sellers.
Choose from 800+ mapped Safe Spots — banks, malls, police stations — or a place you both trust.
Authenticate in-app with Entrupy AI — 99.86% accuracy, 60-second results, no special equipment needed.
You keep every dollar. No fees, no cuts.
What Makes Us Different
A feed that feels native. Swipe through listings like you swipe social — fast, visual, addictive.
Learns what you like. The more you browse and favorite, the better it gets at surfacing what you actually want.
Listings sorted by how close they are to you. Meet up today, not next week.
Listings are scored on photo quality, detail, and verification — not who paid the most to be seen.
Push a listing to the top of local feeds when you need fast visibility. Members get free boosts monthly.
Sneak Peek
Kolosseum is currently in closed beta testing. Here is a preview of the app experience — swipe-based browsing, verified profiles, and safe meetup tools all in one place.
Closed beta — actively evolving.
Beta Program
We are looking for early testers in NYC and LA to try the platform before public launch. Beta testers get everything Founding Members get, plus beta-exclusive updates, direct input on features, and a free Max membership until official launch.
Founding Community
Launching in NYC and LA. Founding members shape the platform, earn a permanent badge, and set the standard from day one. Refer a friend and you both get a free month of Max — plus earn credits toward boosts, extra listings, and more.
Membership
No seller fees, ever. Memberships fund the platform so you never lose a cut of your sale.