Now accepting Founding Traders

Post what you have.
Get what you want.

Kaup is the social bartering platform where you trade what you have for what you actually want — money, possessions, or services. No endless scrolling. Just intent, bids, and trades.

🔄Barter-firstLive bid windowsReputation-gated trades💬No spam DMs
Jordan 1 Chicago
offering
Jordan 1 Chicago
for
Grand Seiko SBGA211
Grand Seiko SBGA211
Gibson ES-335
offering
Gibson ES-335
for
Leica M6 + lens
Leica M6 + lens
Mid-century sofa
offering
Mid-century sofa
for
MacBook Pro M3
MacBook Pro M3

Trade now. Own what you build.

Become a Founding Trader

Get the beta today — everyone who joins can trade. The first 500 in your city to go active earn Founding Trader status; the top 50 by activity earn a stake in Kaup as it grows.

Founder Points are in-app status & perks — not a security. How it works

Founder slots fill by activity, not signups. No monthly fees. Barter stays free forever.

How it works

01

Post your Want

Declare what you're looking for. Kaup finds producers who have it and surfaces them to your feed automatically.

02

Post your Offering

List what you have. Consumers bid on it with cash or a barter — their own item in exchange for yours.

03

Bid, feature, trade

Producers pick their favorite bid when the window closes. A Trade unlocks a private thread to arrange the swap.

Launching city by city

Kaup goes deep in one city at a time so there's always someone nearby to trade with.

New York
New York
Founding city
Los AngelesLos Angeles
ChicagoChicago
A
Austin
D
Denver