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SwappaTEE

A Fusion+ powered cross-chain swap between any EVM-supported chain and XRP Ledger

SwappaTEE

Created At

ETHGlobal Cannes

Winner of

1inch - Non-EVM Extensions for 1inch Cross-chain Swap (Fusion+) 2nd place

Project Description

SwappaTEE enables trustless token swaps between XRPL and Ethereum chains without intermediaries. It is powered by 1Inch's Fusion+ protocol and a TEE implementation of the escrow contracts on the XRPL side.

Instead of using centralized exchanges or risky bridge protocols, users get direct wallet-to-wallet swaps between XRPL and Ethereum. The TEE ensures escrow contracts execute correctly without requiring trust in any intermediary.

  • Better liquidity access: XRPL's fast payments + Ethereum's deep DeFi markets in one workflow
  • Reduced counterparty risk: No custody periods where funds could be lost or stolen
  • Cost optimization: Route transactions through whichever chain is cheaper at the moment
  • Payment apps that automatically find the best rates across both chains
  • DeFi protocols that can tap liquidity from both ecosystems seamlessly
  • Traders who want cross-chain arbitrage without centralized exchange friction

The TEE approach is more secure than typical bridges (which have lost billions to hacks) while being more decentralized than custodial solutions. 1Inch's Fusion+ integration adds professional-grade order execution.

How it's Made

  • Both parties create escrows with same hash-lock on different chains
  • Fund escrows
  • One party reveals secret → both can claim tokens
  • If timeout → automatic refunds

Infrastructure:

  • Runs in Oasis Protocol ROFL (Intel TDX TEE)
  • Uses 1inch Limit Order Protocol contracts
  • Supports multi-transaction funding on XRPL
  • Cloudflared tunnel for secure access
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