--- title: Stablecoin Payments: Multi-Currency Rails with Sub-Second Settlement | Avinya Labs description: Stablecoin payments by Avinya Labs: payment rails supporting settlement across multiple currencies in under one second, built in five weeks. url: /service-pages/industry-payments.html --- Industries / Payments # Payments that settle in under a second. Stablecoin payment rails supporting settlement across multiple currencies, built and shipped in five weeks. [Book a call](https://calendly.com/abbylester/30-mins-meeting) [Contact sales](https://calendly.com/abbylester/30-mins-meeting) [5 wks Build timeline](/case-studies/web3-stablecoin-payments.html) [<1 sec Settlement time](/case-studies/web3-stablecoin-payments.html) [Multi Currency support](/case-studies/web3-stablecoin-payments.html) ## What we built for payments. Stablecoin payment rails for multi-currency settlement. ### Stablecoin settlement Payments settled on stablecoin rails instead of slow traditional routes. ### Multi-currency Settlement across multiple currencies, live. ### Sub-second settlement Settlement in under one second. ### 5-week build Designed, built and shipped in five weeks. ## What else we can build for payments. Capabilities we offer. We have not delivered these in this industry yet. ### Merchant checkout Stablecoin payments at checkout, alongside existing methods. ### Payouts Cross-border payouts to suppliers, partners or users. ### Treasury dashboard Balances, settlements and reconciliation in one view. ### Card programs Card spending funded by digital assets, with Apple Pay and Google Pay. ## Our payments work, and related systems. Each result comes from a delivered engagement. Web3 · Payments ### Stablecoin payment rails Multi-currency stablecoin settlement, built and shipped in five weeks. <1 sec settlement Link: /case-studies/web3-stablecoin-payments.html Web3 · Exchange ### Centralized crypto exchange Matching engine, custody and KYC/AML built from scratch in a 20-week build. 99.9% uptime since launch Link: /case-studies/web3-crypto-exchange.html Web3 · Security ### Smart contract audit & deployment A full audit and multi-chain deployment, closing every finding before launch. 0 critical findings Link: /case-studies/web3-smart-contracts.html ## Is cross-currency settlement slow or expensive for you? [Book a call](https://calendly.com/abbylester/30-mins-meeting) ## The technology behind our Web3 platforms. The right stack depends on the chain, the assets and who holds the keys. ### Blockchains Where it settles - Ethereum - Solana - Aptos - BNB Chain - Polygon ### Smart contract languages What contracts are written in - Solidity - Rust - Move ### Development frameworks Building and testing contracts - Hardhat - Foundry - Anchor - OpenZeppelin ### Custody and wallets Who holds the keys - Fireblocks - MetaMask - WalletConnect ### Oracles and on-chain data Data in and out of the chain - Chainlink - The Graph ### Frontend integration Connecting apps to the chain - ethers.js - viem - wagmi ## From first use case to production. Four stages, with a working version reviewed at each one. ### Discovery Map the payment flows, the systems and data involved, and what good looks like. Discovery notes - Currencies, volumes and partners - Compliance requirements - Launch date ### Scope & architecture Agree the architecture, success measures and delivery milestones. Solution design - Payment architecture - Custody and compliance design - Milestones ### Build Build against real data, with a working version reviewed at each milestone. Working build - Working rails in staging - Security testing - Settlement tests ### Ship & support Roll out to production with monitoring and a defined support window. Production rollout - Launch - Monitoring - Support window ## Why Avinya for payments. We have shipped stablecoin rails on a tight timeline. ### Delivered, not theoretical The work on this page is live, with results from the engagement. ### Security first Contracts are audited before launch. Our most recent audit launched with zero critical findings. ### Compliance designed in KYC/AML and audit trails built into the platform. We work alongside your legal counsel. We do not give legal advice. ### We stay after launch Monitoring and a defined support window after go-live. ## Engagement models. Pick the shape that fits where you are. Ongoing ### Dedicated team A dedicated team that works as an extension of yours, from first release to scale. Fixed scope ### Project-based A defined scope, milestones and delivery date for a specific product or workflow. Advisory ### Consulting & advisory Architecture and readiness advice before you commit to a build. ## What our clients say. White-label exchange > “We partnered with Avinya Labs to launch our white-label crypto exchange, and the experience was seamless. The platform is highly scalable, secure, and fully customizable. Their team ensured smooth integration of liquidity providers and compliance features. Highly recommended!” AlinaCEO, CryptoTrade Hub Non-custodial wallet > “The security architecture is robust, and the UX is simple for mainstream adoption. A fantastic experience!” Yi Y.Head of Product, SafeVault Decentralized exchange (DEX) > “The custom-built DEX solution exceeded our expectations … Security and speed were top-notch, making user onboarding effortless!” Daniel M.Founder, Decentralized exchange ## Stablecoin payments FAQs. ### How fast is settlement? Under one second on the rails we built. ### How long did the build take? Five weeks. Your timeline depends on scope and integrations. ### Which currencies are supported? The rails we built support settlement across multiple currencies. The currencies for your case are agreed during discovery. ### How do you handle security? Contracts go through a full audit before launch and every finding is worked through before deployment. Our most recent audit launched with zero critical findings. ## Ready to turn your vision into reality? Tell us the problem, the data, and where manual effort sits today. We'll map the path from MVP to scale. [Book a call](https://calendly.com/abbylester/30-mins-meeting) [See the work](/work/index.html) Or email [contact@avinyalabs.co](mailto:contact@avinyalabs.co)