Self-Sustaining

Zyfai

Self-sustaining yield engine — idle capital earns yield that funds Darwin's operations across all chains.

Why Zyfai Matters

✗

Before: Fixed Budget Agent

Agent draws from a manually-funded wallet
When wallet runs dry, agent stops
Requires human intervention to top up
USDC sits idle in vault earning 0%

✓

After: Self-Funding Yield Agent

DARW-EU's 50% USDC → Zyfai → Aave/Morpho/Compound
Yield harvested → Locus wallet → funds rebalancing
100% autonomous earn→spend loop
Agent never stops — self-sustaining

How It Works

Detect Idle Capital

Every 30s, the agent scans Base baskets for USDC not needed for imminent rebalances. DARW-EU always has ~50% idle USDC.

Deposit into Zyfai Safe

Agent calls sdk.depositFunds() to move idle USDC into a Zyfai Safe smart wallet on Base.

Auto-Optimize Yield

Zyfai engine routes USDC across Aave, Morpho, Compound for optimal APY.

Harvest & Fund Locus

Every 24h (or on emergency), agent harvests yield and tops up the Locus spending wallet.

Pay Rebalances

Agent pays for rebalance swaps through Locus using USDC funded by Zyfai yield. Loop repeats.

Agent Runner Integration

Every 30 seconds (Base chain cycle):
│
├── evaluateAndDepositIdle()
│   └── For each basket: idle USDC > $100?
│       ├── YES → sdk.depositFunds() → Zyfai Safe
│       └── NO  → skip
│
├── harvestAndFundLocus()
│   └── 24h since last harvest?
│       ├── YES → sdk.withdrawFunds() → Locus wallet
│       └── NO  → skip
│
├── Per basket: check drift
│   └── drift > threshold?
│       ├── YES → emergencyLocusTopUp() → rebalance
│       └── NO  → skip (keep monitoring)

Zyfai SDK Methods

deploySafe()Deploy Safe wallet on Base

createSessionKey()Automated yield access

depositFunds()Route idle USDC to yield

withdrawFunds()Harvest yield to EOA

getPositions()Track earnings + APY

Synthesis Hackathon

Track 3: Yield-Powered AI Agents — $600

✓Agent deposits idle funds into Zyfai

✓Yield generated through DeFi protocols

✓Yield harvested and used for operations

✓Self-sustaining earn→spend loop

✓On-chain audit trail for all actions

✓DARW-EU showcase vault with permanent idle USDC

Safe Details

Safe Address0xaFd6bD49...5eF

Showcase Vault0x1a6213...e585

ChainBase (8453)

TypeZyfai Smart Account

OwnerDarwin Agent