Private yield,
on Ethereum.
The Zephyr Bridge brings ZSD and ZYS to Ethereum as ERC-20 tokens. Buy wZYS on Uniswap and earn Zephyr's real, on-chain APY without ever leaving your existing wallet — then move it onward to any L2 with that chain's own bridge.
Zephyr yield, unlocked for Ethereum DeFi.
Today, earning Zephyr's private stablecoin yield means running a Zephyr wallet. The bridge changes that — hold wZYS in MetaMask, farm it on Uniswap, use it as collateral on Ethereum lending markets. The yield keeps accruing exactly as it does on native Zephyr. From Ethereum, wZYS can travel onward to L2s like Base and Arbitrum through those chains' own canonical bridges.
Yield never stops
Staked ZSD keeps accruing ZYS shares whether it lives on Zephyr or an EVM chain. Bridge in, bridge out, sell on Uniswap — the yield follows the share.
Composable on Ethereum
wZYS is a standard ERC-20 — it fits into every Ethereum AMM, aggregator, lending market, and yield vault. Uniswap first, then wherever liquidity forms.
Sherlock-audited
The bridge contracts are audited by Sherlock DeFi, the same firm that has audited more than 300 protocols including Aave, Uniswap, and Chainlink.
The best stablecoin APY in DeFi — soon on Uniswap.
ZYS shares earn a share of every Zephyr block's mining emission, paid in ZSD. No lending, no rehypothecation, no counterparty risk — just protocol emissions redistributed to stakers.
Current ZSD APY
Live-annualized from today's block emission. 68% in year one while ZEPH itself fell 90% — the yield source is structural, not market-dependent. When wZYS trades on Uniswap, EVM users get direct access to this rate without holding ZEPH or running a wallet.
Comparison rates are illustrative snapshots — check each protocol's live rate. Zephyr rate updates live from the chain.
Lock on Zephyr, mint on Ethereum.
The bridge is a lock-and-mint model with 1:1 backing. For every wZYS on Ethereum, there is exactly one ZYS locked in the Zephyr bridge contract. Redemption is bidirectional — bridge back anytime.
Lock ZYS on Zephyr
Send ZYS to the Zephyr-side bridge contract. Your wallet stays private, the deposit is confirmed on-chain.
Mint wZYS on Ethereum
The bridge relayer verifies your deposit and mints an equal amount of wZYS to your Ethereum address. ~1 minute confirmation.
Trade, hold, or move on
wZYS is ERC-20 — usable in MetaMask, tradeable on Uniswap, composable across Ethereum DeFi. Yield accrues while you hold. Send it to an L2 with that chain's bridge if you like.
Bridge back anytime
Burn wZYS on Ethereum → release ZYS on Zephyr. Same speed both directions. Your original privacy is restored on the Zephyr side.
Audited by Sherlock DeFi.
Bridge contracts have been reviewed by Sherlock — one of the most trusted security audit firms in DeFi. Sherlock has audited Aave, Uniswap, Chainlink, Optimism, and 300+ other protocols. Their review focuses on economic exploits, upgrade paths, and cross-chain trust assumptions.
Bridge contracts reviewed by Sherlock DeFi
Independent security review focused on the mint/burn logic, relayer trust model, and Zephyr-side lock contract. Public report link when mainnet launches.
Try it on testnet today.
The bridge is live on testnet — mint wZYS, trade it, bridge back. Mainnet is next.