YO Protocol
Non-custodial ERC-4626 yield optimizer on Base and Ethereum; agents deposit stablecoins into yoUSD to earn aggregated DeFi yield.
Overview
YO Protocol is a multi-chain yield optimizer built on ERC-4626 vaults, currently reporting roughly $12.9M TVL and an 8% yield on its yoUSD product. An agent builder uses it as a deposit target for idle stablecoin balances, routing funds into the vault via standard ERC-4626 deposit/withdraw calls rather than managing individual yield strategies directly.
Sato Score
28/100· LowHow open, active & verifiable — not a safety or returns grade.
- Maintenance & liveness
- 20/35
- Code transparency
- 0/20
- Interface verifiability
- 0/10
- Docs & demo
- 0/10
- Listing transparency & provenance
- 4/15
- Independent verification
- 4/10
Observed record — 49 daily checks since 2026-07-19
- Succeeded
- 5
- Failed
- 44
- Their error
- 0
- Unattributed
- 44
State changed on 2026-09-01 (unclear → responding).
This is the share of our daily checks that succeeded — not an availability guarantee. A check can fail because the host was down, because our runner timed out, or because the network in between dropped it, and only the first of those is a fact about this project. Failures are split by what we can attribute; anything we cannot attribute is counted, not hidden. 44 of these checks predate 2026-09-01, when the probe counted a bot-block (HTTP 403) as a failure and recorded no reason for any failure. Rates spanning that date mix two definitions. Since then: 100%.
Details
- Chains
- Base, Ethereum, Arbitrum
- Agent types
- Yield optimizer
- Open source
- Unknown
- Last checked
- 2026-09-05
Marketplace Signals
No marketplace signals recorded for this resource yet.
Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.
Where YO Protocol fits
Related concepts: How Agents Interact With Smart Contracts, How Agents Use Wallets, What Are Onchain Agents?
Listing History
Recorded changes to YO Protocol's listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.
- Jul 21, 2026Edited: onchain address
- Jul 19, 2026Edited: chains supported
- Jul 19, 2026Listed on Sato Hub
- Jul 19, 2026Sato Hub began tracking this listing
Related Resources
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Zerion
ActiveWallet and DeFi data provider offering portfolio, positions, transactions, PnL, and prices across many chains, with an agent-accessible API.
DefiLlama
ActiveOpen DeFi analytics dashboard and free API tracking TVL, fees, revenue, volume, and yields across many chains and protocols.
Is this your project?
Prove you control the domain and you can correct this page — description, links, tags, chains. Claiming proves control, not verification: it doesn't change the Sato Score or mark anything as audited.
Claim this listing →Cite this page
Sato Hub. "YO Protocol — Sato Hub." Sato Hub, updated 2026-09-05, accessed 2026-09-05. https://satohub.ai/resources/yo-protocolThis page is refreshed daily. Citations include the date so a reader can tell which snapshot a claim came from.
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