- Digital Wallets
- Marketplaces
- Payments
- USDC
- Wallets
- Paymaster
- Solana
- Yes
- iOS
- Free
- North America
- United States
Real rewards. Powered by digital dollars.
Why hasn’t crypto changed payments yet?
Trillions move on stablecoins every year.
But nobody buys coffee with them.
The rails exist. The incentives don’t.
Meanwhile, small merchants lose 2%–4% on every card swipe - often more than their profit.
So they raise prices, cut quality, or spend on ads they can’t track.
Loyalty could help.
It’s one of the best ways to bring people back.
But most programs are broken—apps no one opens, points no one uses.
Starbucks made loyalty work by keeping it simple:
Buy coffee. Get something back.
People come more often, spend more, and feel rewarded.
What if every café could offer that without apps, points, or extra effort?
That’s Keychain.
A small NFC puck at checkout.
Tap your phone.
Get a digital dollar reward—instantly.
No setup. No training. No cost to try.
Just real value for customers, and real results for cafés.
Loyalty is where we start.
But the goal is bigger: stablecoin payments that work in the real world—one tap at a time.
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