API3 is a first-party oracle solution that provides data feeds and OEV rewards for DeFi projects across multiple chains.
Developer Tools
Yelay
Yelay is a yield infrastructure layer that lets builders embed Smart Vaults to auto-route deposits across DeFi yield sources on Ethereum and Base.
About Yelay
Yelay is a yield infrastructure protocol formerly known as Spool that helps DeFi apps, wallets, and treasuries plug yield into any product. Builders deploy Smart Vaults via the Yelay SDK, and user deposits are auto-routed across more than 90 strategies on Ethereum and Base, with rebalancing, auto-compounding, and reward swaps handled in the background. The protocol has routed around $320M lifetime.
Key features
- Smart contract development: vault + strategy layer
- Building blocks we compose into your solution
Best for
- Web3 developers
Official resources
Websiteyelay.io
DocumentationGetting started
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