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Rails is a Sui-native settlement infrastructure for converting stablecoins into local fiat in emerging markets. It is built for fintechs, consumer apps, DeFi protocols, and cross-border payment systems that need predictable payout behavior and a clear settlement boundary. Rails supports EVM integration, but settlement is executed on Sui. On-chain escrow and liquidity-provider rails handle payout, while the product surface stays focused on offramp and settlement orchestration.

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What Rails is for

  • Stablecoin-to-fiat offramping
  • B2B integrator payout flows
  • API-driven settlement workflows
  • Product systems that need an auditable Sui settlement core

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What Rails is not for

  • General-purpose wallet hosting
  • Consumer trading UI
  • Card issuance or wallet management
  • Custody of user balances outside the settlement flow

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Core supported corridors

  • BRL
  • KES
  • NGN
  • UGX
  • TZS
  • MWK

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Core supported assets

  • Native SUI
  • USDC
  • USDT

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Proof of work

Tapp is the proof of work for how you can build a product system on Rails.