Integrating Garden with Aztec for Privacy-Preserving Cross-chain Swaps

Aztec
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Contact Details
Email: pankaj@hashira.io
Telegram: pankajshukla1

Summary

Garden proposes integrating its intents-based Bitcoin bridge with Aztec to enable privacy-preserving cross-chain swaps. The integration will leverage Garden’s intents based trustless settlement architecture to provide seamless, secure, and scalable swaps between Bitcoin/EVM chains and assets on Aztec. This collaboration will enhance interoperability across Ethereum’s ecosystem while maintaining zero custody risk for users.

The project aims to deploy a functional demo on Aztec’s testnet by June 2025, showcasing cross-chain swaps and a streamlined user experience. Garden’s proven infrastructure, which has processed over $1.16 billion in swaps on the mainnet (live on Ethereum, Arbitrum, Base, Berachain and Bitcoin), positions it as the ideal partner for this initiative.

Mainnet dApp here: https://garden.finance/

Architecture overview:

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Start and End Date
Start Date: April 1, 2025
End Date: June 30, 2025

About Us

Garden is the fastest Bitcoin bridge to EVM that enables EVM to EVM bridging as well, built using intents-based architecture with trustless settlements. Our contracts are audited by Trail of Bits, ensuring top-tier security.

The team comprises Web3 veterans with extensive expertise in interoperability:

  • Jaz Gulati, ex-product lead at Ren Protocol, scaled Ren from zero to $12 Billion in volume. Co-founder of Catalog, a cross-chain protocol backed by Amber Group, Multicoin Capital, and BlockTower Capital.

  • Susruth Nadimpalli, ex-technical lead at Ren Protcool and Rook (f.k.a. KeeperDAO), an MEV pioneer that bootstrapped a treasury of $100M within 6 months. Co-founder of Catalog.

Details
Garden will build a bridge to Aztec L2 enabling private swaps to Aztec assets, enabling Aztec to/fro EVM L1, L2s and Bitcoin movement. The integration will utilize Garden’s HTLCs for trustless cross-chain swaps.

We have created a testnet dApp to showcase cross-chain swap experience Garden enables while moving assets across Ethereum Sepolia, Base Sepolia, Arbitrum Sepolia, Citrea Testnet and Monad Testnet here: https://testnet.garden.finance/

Technical hurdles that needs to be overcome: since the execution environment are slightly different for Aztec, the technical team will need to spend time on understanding how to enable private/public swap execution and covering gas cost for users.

Grant Amount Requested

$50,000

Grant Budget Rationale

The requested budget will cover development costs associated with deploying HTLC contracts, integrating solvers with Aztec’s infrastructure, updating the front-end UI, and conducting security audits.

Helpful links:

Please note: we are submitting this proposal to gauge interest, and a non-technical team member writing it; if there is interest from the Aztec team to enable native Bitcoin along with EVM L1&L2s cross-chain swaps, we would be interested in creating more in-depth proposal after taking a deep-dive at the tech stack.