Privacy Boost V2: End-to-End Onchain Privacy

We're happy to launch Privacy Boost V2!

With V2, you can manage the full cycle of onchain fund management privately: put your balance to work in DeFi with private lendings and DEXes, use the wallets you already have like MPC and Safe, and shield funds through Portal addresses without exposing who's depositing.

Try it at app.privacyboost.io.

The Full Cycle, Finally

Running a fund onchain has always leaked. Every payslip, every vendor payment, every lending supply sits on a public ledger with your name effectively attached. And onchain privacy has always been a half solution, as it's not regulatory-friendly, has a difficult UX, or doesn't cover the full lifecycle of financial management. Privacy Boost V1 solved the core of this: private balances and private transfers, fully self-custodial.

But managing a fund is more than balances and transfers. Money comes in from counterparties who shouldn't need special software. It gets deployed into DeFi to avoid sitting idle. It gets spent under a signing policy your team already agreed on. V1 covered the middle of that cycle, and we built V2 to cover all of it.

Here's what fund management on Privacy Boost V2 looks like end to end:

1. Receive. Hand counterparties a Portal address. It looks and works like any normal blockchain address, so they pay you the way they always have. The funds land directly in your private balance, and the deposit is never linked to the rest of your fund.
2. Hold. Your balance is visible to you and your team. To everyone else, nothing.
3. Deploy. Deposit into lending protocols like Morpho and Aave, or DEXes through 1inch, straight from your private balance. Your positions and trades stay off the public record.
4. Pay. Run payroll and vendor payments as private transfers. Recipients get paid; the world doesn't get your cap table of counterparties.
5. Prove. When an auditor or regulator needs the history, Audit View gives them exactly that. Nobody else sees a thing.

What's New in V2

Private DeFi. Supply to lendings on Morpho and Aave and swap through 1inch, executed from your private balance. Your positions and trades never touch the public record, and neither does the strategy behind them. Capital no longer has to go public the moment it goes to work.

Wallet infrastructure support. Privacy Boost now works with the wallet setup you already run: EOAs, MPC wallets, and Safe multisig. There's no separate key to manage, and your signing policy stays exactly what it is. If your fund requires three signatures with multisig today, it requires three signatures on Privacy Boost.

Portal addresses. Generate as many receiving addresses as you want, just like exchange deposit addresses. Each one shields incoming funds into your private balance without the payer knowing Privacy Boost exists. Invoicing, donations, revenue from an app: all of it can flow in privately from day one.

All of this sits on the same architecture as V1: zero-knowledge proofs paired with trusted hardware, self-custodial throughout, private from the public and provable on your terms.

For Builders

Everything above is available in the SDK:

• @sunnyside-io/privacy-boost — TypeScript, React, iOS, Android, Rust, CLI
• Docs: docs.privacyboost.io

If you're building a wallet, a payments product, a treasury tool, or a DeFi protocol and want private balances in it, let's chat: privacyboost.io/#contact

What's Next

V2 is live now on OP Mainnet, Soneium, and Base. And it's not stopping there: we have some news later this week about where Privacy Boost is headed next. Stay tuned.

Try it on app.privacyboost.io

— ☀️side labs team, with love.