Wrapsynth

WrapSynth is a decentralized, trustless cross-chain bridge that brings Monero (XMR) privacy and liquidity to EVM ecosystems like Gnosis Chain and Base. Utilizing overcollateralized LP vaults and on-chain Ed25519 atomic swap commitments, it entirely eliminates the need for trusted custodians or centralized federations. To maximize capital efficiency, our native Uniswap V3 co-LP router actively deploys idle vault collateral into concentrated liquidity pools, providing extended revenue streams and yield generation for liquidity providers.

For the ETHGlobal NYC 2026 Continuity Track, we significantly upgraded the core protocol by integrating the Unlink SDK. This introduces a robust privacy layer that enables fully private deposits of wrapped Monero, seamlessly bridging transparent EVM liquidity with advanced off-chain privacy primitives. Additionally, our new deployment to Base Sepolia introduces a fully automated, decentralized liquidation ecosystem to preserve system solvency. Powered by the Chainlink Runtime Environment (CRE), the protocol autonomously flags undercollateralized vaults via DON consensus while utilizing low-latency Chainlink Data Streams for highly accurate real-time pricing feeds. To develop our Uniswap integration further, we incorporated swaps routing through the Uniswap API into our interface.

WrapSynth is engineered using a Diamond-style (Hub + Facet) smart contract architecture in Solidity. To ensure absolute security across logic modules, we implemented EIP-1153 transient storage to enforce delegate-context and entirely prevent cross-facet reentrancy. The foundational layer communicates with an off-chain network through a custom Rust LP node managing Monero RPC and real-time event monitoring.

For our hackathon additions on Base Sepolia, we seamlessly pieced together multiple partner technologies:

Unlink SDK: Used to construct private client-side deposit.js and server-side withdrawal primitives, masking EVM asset histories and providing a privacy-preserving onboarding ramp and wraped XMR token transfers.

Chainlink Runtime Environment (CRE): We built a TypeScript-driven autonomous keeper workflow. It utilizes Decentralized Oracle Network (DON) consensus to off-chain poll for liquidatable positions, pushing signed reports to our custom LiquidationAlertRegistry.sol.

Chainlink Data Streams: Integrated directly into our OracleFacet to pull instant, low-latency XMR/USD and ETH/USD price feeds to dynamically assess collateral ratios.

Uniswap V3 API: Tied directly to our wsXMRLiquidityRouter to deploy idle vault collateral into active concentrated liquidity positions, boosting capital efficiency.

A particularly notable and hacky engineering feat was implementing native Ed25519 scalar multiplication directly within our Solidity smart contracts. This allows the EVM to mathematically verify atomic swap secrets against the user's cryptographic commitments without relying on heavy external zero-knowledge infrastructure, binding settlement directly to the Monero chain's native cryptography.