Stablecoins are becoming a core part of the global payments stack. Fintech apps use them for fast settlements, remittance platforms for cross-border transfers, and payroll companies for paying international contractors. But while stablecoins settle on blockchains, users still interact with traditional finance—fiat conversion, identity verification, card connectivity, and compliance must all happen behind the scenes.
Who Provides the Bridge
Infrastructure providers handle these complex tasks. Firms like Transak offer regulated payment rails via a single API, allowing fintech apps, wallets, and marketplaces to enable stablecoin payments without building underlying financial infrastructure. Other players include MoonPay, Coinbase's infrastructure tools, and Stripe's crypto services. Transak focuses on global fiat-to-stablecoin connectivity, supporting local payment methods such as SEPA and PIX.
The Three-Layer Stack
Stablecoin payment flows rely on three layers. First, blockchain networks (Ethereum, Polygon, Solana) serve as settlement layers. Second, stablecoin issuers like Circle provide fiat-backed tokens. Third, infrastructure providers connect traditional banking and compliance systems to blockchains. Transak handles both on-ramps (fiat to stablecoin) and off-ramps (stablecoin to fiat), accepting cards, bank transfers, and regional payment systems.
Typical On-Ramp Flow
A user selects a payment method; the infrastructure processes the transaction and verifies identity; fiat is converted to stablecoins via liquidity providers; tokens are delivered to the user's wallet. Transak handles compliance checks, payment processing, fraud monitoring, and regulatory licensing. This on-ramp makes stablecoins accessible directly within wallets or fintech apps.
Why Companies Don't Build In-House
Building stablecoin payment infrastructure internally can cost millions and take over 18 months, requiring regulatory licenses, banking relationships, compliance systems, and multi-region payment support. Using providers like Transak, product teams can launch stablecoin features quickly via API without managing global financial rails.
Future Role
As stablecoin adoption grows in remittances, payroll, and cross-border payments, infrastructure providers become increasingly vital. They bridge traditional money with digital settlement networks, letting fintech firms focus on product innovation rather than compliance and payment processing.