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Work · Guardarian · FinTech · crypto on/off-ramp

Fiat to crypto in 170+ countries, as an app and as a widget

Illustration: a hand holding a phone with a crypto payment screen, a bank card nearby
Illustrative imageVisit the live product ↗
Problem
Turning cards, bank transfers and wallets into crypto and back means regulation, KYC and dozens of payment rails, inside a flow short enough that people actually finish it.
What we built
We worked on the exchange flows and the partner side: buy, sell and swap with real-time rate estimates, KYC steps that stay out of the way, and an embeddable widget and API that partners drop into their own products.
Services
Web DevelopmentBackend & APIsCloud & DevOps

Architecture

BuyerPartner appExchangeWidgetExchange APIKYCPayment railsLiquidity
  • React
  • TypeScript
  • Node.js
  • REST API
  • Embeddable widget
  • KYC integration
countries the product serves
170+
countries the product serves
supported cryptocurrencies
1000+
supported cryptocurrencies
payment methods across 30+ fiat currencies
20+
payment methods across 30+ fiat currencies

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