Case study 03 / 07Fintech
Works / Krivi
Krivi
A crypto-funded virtual Visa card. Users top up with stablecoins or local mobile money and spend anywhere Visa is accepted: online, in store and on subscriptions.
Visit live siteMy role
I owned the product end to end, from core architecture and UX design through cross-border checkout, and built the backend that processes transactions in real time.
The challenge
Spending crypto in everyday life usually means exchanges, forex fees and waiting. Krivi had to feel as simple as a debit card, with no hidden spreads and no weekend markups.
01 — The card
Crypto in, Visa out.
Stablecoins convert and spend instantly wherever Visa is accepted. Cards issue in seconds, are Apple Pay and Google Pay ready, and freeze with one tap.


02 — Local rails
Top up with mobile money.
Localised integrations let users load their stablecoin wallet over regional mobile money networks, including Airtel Money and TNM Mpamba.

03 — Checkout
Zero hidden spreads.
Cross-border forex conversion at checkout, with no hidden spreads or weekend markups, on infrastructure built for real-time processing and 99%+ uptime.

Impact
By the numbers
Visual language
Colour
The palette carried across the product, sampled from the live site.
Krivi lime
Ink
Lilac
Violet
Live site — keep scrolling




