How It Works
Token-level yield suggestions. When users view their balances and select a specific asset, the vaults.fyi API surfaces relevant Earn opportunities for that token — meeting users at the moment of intent. Explore tab. Powered by vaults.fyi market data, the Explore tab lets users browse DeFi opportunities across major protocols without leaving the wallet. Multi-chain coverage. The integration spans Ethereum Mainnet, Base, Optimism, Arbitrum, and Polygon, giving users a cross-chain view of yield opportunities from a single interface. Curated protocol selection. Users can access yields from dozens of leading protocols and filter by their preferences.API Capabilities Used
The integration relies on two core vaults.fyi API categories:- Market data: APY, TVL, and vault metadata across protocols and networks.
- Portfolio and personalized insights: Tailored suggestions derived from the user’s existing token balances.
Why Kraken Built This with vaults.fyi
Building DeFi yield analytics in-house would require maintaining protocol-specific indexers, normalizing yield calculations across incompatible schemas, and tracking coverage across five networks continuously. By integrating vaults.fyi, Kraken reduced that to a single API — enabling the team to focus on product experience rather than data infrastructure. For users, this means:- Personalized earning suggestions based on actual holdings.
- Yield discovery without leaving the wallet.
- Multi-chain opportunities in one place.
- Real-time data from verified onchain sources.
Roadmap
The current integration focuses on analytics and personalized discovery. Planned expansions include transaction support for one- and two-click supply and withdraw directly from the Earn interface, additional network coverage, and further personalization based on user behavior.Ready to add DeFi yield discovery to your wallet or app? Get API access to explore the market data and portfolio endpoints Kraken uses.