# Coming Home: Zyfai Deploys on Ethereum Mainnet with ETH Yields

> Vitalik once said Ethereum is about resilience and sovereignty. We agree.

**Published by:** [Zyfai](https://blog.zyf.ai/)
**Published on:** 2026-03-10
**Categories:** ethereum, defi, agent, eth, stablecoin, defai, neobank, yield
**URL:** https://blog.zyf.ai/coming-home-zyfai-deploys-on-ethereum-mainnet-with-eth-yields

## Content

Since day one, Zyfai has been built on a single conviction: individuals should have autonomous control over their capital, free from institutional dependency, free from intermediaries deciding where their money goes and what it earns. That's why we built Verifiable Agents: autonomous Agents that optimize yield on your behalf, operating within strict permissions you define, secured by infrastructure you control, and verifiable with ZK proofs stored in the ERC-8004 Validation Registry.Verifiable Agents: A New Blueprint for Autonomous DeFi with ZK Proofs & ERC-8004ZyfaiDec 5, 2025The promise of the agentic economy is being held back by a single question: How can you truly trust an agent? That is why we're taking a decisive step: integrating ZK proofs and the ERC-8004 standard ...0 collectedCollectBut Agents need an environment that matches their principles. They need a world computer that doesn't ask for permission and can't be turned off. They need to operate where trust assumptions are minimized and neutrality is the default. They need Ethereum. Tomorrow, Zyfai will deploy on Ethereum mainnet. For the first time, your Agent will support ETH, the credibly neutral asset at the center of decentralized finance. If you hold ETH because you believe in Ethereum, this is for you. Your ETH doesn't need to sit idle. It doesn't need to be bridged or converted into something it isn't. It doesn't need to be handed to a vault operator who pools it with everyone else's. It needs an Agent. Deploy your Smart Account on Ethereum mainnet. Deposit ETH. Choose the protocols you trust. Your Agent handles the rest: scanning, comparing, rebalancing, compounding, all within the permissions you define, all on L1, all fully self-custodial. Ethereum is where Agents should live. Zyfai is almost here.Why Ethereum. Why Now.Ethereum L1 is where DeFi was born. It is the settlement layer: the base reality that every L2 ultimately reports to, the liquidity center that anchors hundreds of billions in value, the trust layer that institutions, protocols, and individuals converge on because nothing else offers the same combination of security, decentralization, and composability. We started on L2s deliberately. These were our proving grounds. The place to ship fast, iterate on the rebalancing engine, battle-test the infra across different execution environments, and demonstrate that autonomous yield optimization works at scale. It does. Over $11M AUM at the peak. More than 13,000 agents deployed. $2B+ in agentic volume processed. All self-custodial. All verifiable. L2s proved the model. Ethereum mainnet is where we were always headed. For individuals deploying significant capital, Ethereum mainnet is the only chain that matters: the deepest liquidity in lending markets, the most established and battle-tested protocols, and the lowest risk of chain outage.ETH, The First Non-Stablecoin Asset at ZyfaiSince launch, Zyfai has optimized yield exclusively on stablecoins. That was intentional. Stablecoins are the simplest expression of the Agent thesis: deposit a stable asset, let the Agent find the highest risk-adjusted yield, rebalance when something better appears. But stablecoins are tethered to fiat monetary systems. They inherit the trust assumptions of their issuers, the regulatory frameworks of their jurisdictions, the counterparty risk of their reserves. ETH is different. ETH is credibly neutral, not attached to any government, corporation, or monetary policy. It's the native asset of Ethereum, the economic fuel that secures the network, and increasingly the collateral of choice across DeFi. It is, by any reasonable measure, the most important non-Bitcoin asset in crypto. Gauthier ⬆️ @goatv_bk ETH is becoming the most interesting asset in any portfolio. The first programmable reserve asset with a native yield. Gauthier ⬆️ @goatv_bk ETH is a bet on the native currency of the agentic economy. 196 11:13 PM • Mar 6, 2026 And yet, for most ETH holders, yield options are limited. You can stake for validator rewards. You can manually deposit into lending protocols, compare rates, move funds when something better appears. Or you can sit on a spot position and watch it earn nothing while the protocols around it generate yield from borrowers willing to pay for access to the asset. We're happy to finally bring autonomous yield optimization to ETH holders. Deposit ETH into your self-custodial Safe7579 Smart Account, and your Agent begins scanning supported lending protocols on Ethereum mainnet for the highest risk-adjusted yield and rebalancing when the math justifies it. In other words, the same deterministic logic that has optimized millions in stablecoin yield now works for the asset that powers DeFi itself.Built for Capital That Demands MoreEthereum mainnet is where serious capital lives. And serious capital has serious requirements. Zyfai was engineered for exactly this. Self-Custodial by Design. Every user deploys their own Smart Account, a modular smart contract wallet built on Safe by Rhinestone (Safe7579). It's the same standard that secures over $100B of institutional capital globally. That means there is no pooled capital or shared vault, your funds stay in your Smart Account. Your wallet, your keys, DeFi your positions. Zyfai @Zyfai_ Did you know that all wallets created on ZyFAI can be accessed via the @safe UI? ZyFAI delivers automated stablecoin yield while ensuring you always have full custody of your assets Let us explain 49 9:06 PM • Aug 1, 2025 Rule-based Rebalancing. The Smart Rebalancing v.2 Engine is not a black-box AI making unpredictable decisions with your capital. It's a rule-based, deterministic system that runs five explicit checks before every rebalance:Pool concentration check: Your Agent compares the pool's total size to your wallet balance, ensuring deep safety margins.Delta APY threshold: A rebalance only triggers when the yield improvement crosses a meaningful threshold, minor fluctuations are ignored.7-day APY stability analysis: The target pool's yield must have remained within defined bounds over the past week. The Agent avoids chasing spikes.Break-even calculation: The Agent estimates slippage, gas, and fees, then calculates how many days it would take for the extra yield to cover the cost of rebalancing. If the math doesn't work, it doesn't move.Liquidity health monitoring: The Agent monitors liquidity, utilization and the Interest Rate Model (IRM) of each money market. When a market becomes highly utilized and remaining liquidity shrinks to a level that could affect withdrawals, the Agent proactively exits your position.Every parameter is transparent. Every decision is verifiable with ZK proofs stored in the ERC-8004 Validation Registry. Nothing is left to an LLM's interpretation.Smart Rebalancing v.2: Perfectly Balanced, As All Things Should BeZyfaiDec 5, 2025When we launched Smart Rebalancing Engine v.2 last week, we announced a fundamental shift in how capital efficiency works in DeFi. The thesis was clear: intelligent rebalancing checks driven by a secu...0 collectedCollectSession Keys with Scoped Permissions. When you activate your Agent, you sign Session Keys. It's cryptographic permissions that define exactly which protocols and pools your Agent can interact with. That means that your Agent cannot execute transactions that are outside of your whitelist. They are temporary, revocable, and fully under your control. This is the architecture that separates Zyfai from vault-based protocols: your Agent interacts directly with the lending protocol's contracts. Even if protocol's frontend were compromised, your funds remain safe because the Agent operates at the smart contract level, not through a web interface. Zyfai @Zyfai_ Did you know you can customize your ZyFAI Agent more than Akira Nakai customizes his Porsche? Select the chains it can interact with Pick the protocols it can use Specify the pools it can deposit into Some might call it magic. We call it the power of session keys 56 11:04 PM • Jul 28, 2025 Security Proxy Gateway. All Agent execution requests pass through an additional security layer before reaching your Smart Account. This gateway validates that every proposed action complies with your Session Key permissions and the protocol's safety rules. It's an independent checkpoint, a second line of defense between the Agent's logic and your capital.Zyfai's New Security Proxy System: Same Trust Model with Improved Execution ZyfaiDec 24, 2025In the Agentic Economy, trust is essential. But usability ultimately determines whether trust is exercised. Session Keys provide solid security guarantees. They allow users to delegate limited authori...0 collectedCollectAudited Infrastructure. Zyfai Smart Accounts are built on Rhinestone infra: SmartSession, Safe7579, and Core modules, all independently audited. Gas sponsorship is handled by Pimlico's paymaster, also audited. Zyfai protocol itself was end-to-end audited by Sherlock in December 2025 with 0 critical findings. Zyfai @Zyfai_ To close the year on a high note, Zyfai has completed a comprehensive, end-to-end protocol audit by @sherlockdefi. No major issues were found, marking a key milestone in establishing trust in Agentic Finance. The audit report is available below 65 11:39 PM • Dec 25, 2025 Quant-Curated Opportunities. Your Agent only operates within a pre-approved list of protocols and pools. Every opportunity on Ethereum mainnet was vetted by Zyfai's quants team across technical risk (multiple audits from top firms, no unresolved critical findings, tier-1 oracles, clean exploit history), operational risk (proven team, active development, proper multisig governance), and economic risk (sustainable fee-based yield sources, deep liquidity, permissionless exits). We apply a Lindy filter: the longer a protocol has operated securely with growing TVL, the more trust it earns. If we can't clearly trace how a protocol generates yield, we don't integrate. Your Agent never touches an opportunity that hasn't passed the hardest test first. Zyfai @Zyfai_ Capital efficiency means nothing without capital preservation. APY volatility. Stablecoin depegs. Exploits. You can't monitor all of that 24/7. At Zyfai, we built a system that never sleeps. Here's what it monitors around the clock to protect your capital 27 9:13 PM • Feb 20, 2026 Here's the list of approved protocols on Ethereum mainnet:AaveCompoundSparkMorphoFluidDolomiteEulerWasabiYearnGas on Mainnet: How Zyfai Keeps Every Rebalance ProfitableOn L2s, gas is cheap enough that rebalancing costs are negligible. Ethereum mainnet is different: gas costs can run $0.50 to $1+ per transaction, and frequent rebalancing without discipline could eat into your returns. This is the first question any serious Ethereum user will ask: "Won't gas destroy my yield?" The answer is no, and here's why. Zyfai has a built-in gas profitability system designed specifically for high-gas environments. The core principle: your Agent will only execute a new rebalance once your earned yield has at least covered the gas cost from the previous one two times. Gas is always deducted from accrued earnings, never from your principal. Here's how it works in practice:After each rebalance, the system takes a snapshot of your current earnings and the gas cost incurredBefore the next rebalance can fire, the Agent checks whether the yield you've earned since that snapshot (net of the protocol's 10% performance fee) exceeds the gas spentIf it doesn't, the Agent waitsExample Say you have 1,000 USDC and the Agent rebalances from Pool A to Pool B, costing ~$0.50 in gas. The system records your earnings at that moment. Time passes. Pool B generates yield. Once your net earnings since the snapshot exceed $0.50, and only then, the Agent is cleared to rebalance again.On top of the gas recovery check, a forward-looking filter runs before every opportunity is even scored: the APY improvement between your current pool and the target must generate enough extra yield within 2 days to cover any pending gas costs. This prevents the Agent from chasing a marginally better rate that won't pay off quickly enough. The one exception is safety. If pool liquidity drops critically, a protocol health issue emerges, or a pool is removed from your preferences, the Agent rebalances immediately regardless of gas recovery status. Protecting your principal always takes priority over gas optimization. The result: you never go negative on a rebalance cycle. The system self-regulates. More frequent rebalancing only happens when it's genuinely profitable.Battle-TestedWe're not deploying untested infrastructure on Ethereum mainnet. Everything launching in the next few days has been running in production across 4 chains. The numbers speak for themselves:Peaked at $11M+ TVL across Base, Arbitrum, Sonic, and Plasma13,000+ Agents deployed and actively managing positions$2B+ in volume processed through autonomous rebalancing~10% APY delivered on stablecoin strategiesZero security incidents since launchThe Smart Rebalancing v.2 engine has been live across thousands of positions, continuously optimized through real-world performance data. OmniAccounts, our cross-chain atomic rebalancing engine, proved that the same architecture can operate across chain boundaries with sub-1.5-second execution. Ethereum mainnet is a natural extension of infrastructure that already works at scale.The ProgressionZyfai's trajectory has been deliberate: Phase 1: Stablecoins on L2s. Prove that autonomous yield optimization works. Build the Agent architecture, the Smart Account infrastructure, the rebalancing engine. Accumulate real users, real TVL, and real performance data. Phase 2: OmniAccounts. Break down chain boundaries. One balance, all chains, best yields. Demonstrate that Agents can operate cross-chain with deterministic outcomes, zero slippage, and no user intervention. Phase 3: Ethereum mainnet + ETH. Come home. Deploy on the settlement layer. Add the first non-stablecoin asset. Open the door for ETH holders who want autonomous yield optimization without leaving the ecosystem they believe in. What comes next: More assets. More chains. More sophisticated strategies. The Agent evolves, but the principles stay the same. Self-custody. Deterministic execution. Verifiable outcomes. No trust required beyond the code.About ZyfaiZyfai gives you self-custodial access to autonomous low-risk DeFi. Our customizable rule-based Agents transform your idle capital into productive assets, rebalancing between curated opportunities. The result is sustainable and risk-adjusted yield, where your capital is always working and under your control. Explore Zyfai | Follow on X | Read blog | Explore Docs

## Publication Information

- [Zyfai](https://blog.zyf.ai/): Publication homepage
- [All Posts](https://blog.zyf.ai/): More posts from this publication
- [RSS Feed](https://api.paragraph.com/blogs/rss/@zyfai): Subscribe to updates