# YO Protocol

> YO is a secure, multi-chain DeFi yield optimizer that continuously rebalances portfolios for the best risk-adjusted returns.

YO Protocol provides ERC-4626 yield vaults on Ethereum, Base, and Arbitrum. All deposits and redeems route through a single Gateway contract. The SDK (`@yo-protocol/core`) wraps on-chain reads, write actions, prepared transactions, REST API queries, and Merkl reward claims.

## Docs

- [YO Protocol Documentation](https://docs.yo.xyz/)
- [Integration Guides](https://docs.yo.xyz/integrations/technical-guides)
- [Brand Kit](https://docs.yo.xyz/integrations/brand-kit)

## SDK Reference

- [Full SDK Reference (Markdown)](/build/sdk/llms-full.md)
- [Full SDK Reference (Plain Text)](/build/sdk/llms-full.txt)

## Risk Graph

- [Risk Graph Agent Overview](https://www.yo.xyz/risk-graph/llms.txt)
- [Risk Graph Full Agent Reference](https://www.yo.xyz/risk-graph/llms-full.txt)

## Links

- [Website](https://www.yo.xyz)
- [Build with YO](https://www.yo.xyz/build)
- [Blog](https://www.yo.xyz/blog)
- [Whitepaper](https://www.yo.xyz/whitepaper)
- [GitHub](https://github.com/yoprotocol)