> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vaults.fyi/llms.txt
> Use this file to discover all available pages before exploring further.

# Customer Case Studies

> How Arbitrum, Jumper Earn, Kraken Wallet, Gauntlet, KPK, Otus, and Maple Finance use the vaults.fyi API for yield discovery, analytics, benchmarking, transactions, and agent-managed yield.

Leading teams across ecosystem portals, wallets, trading platforms, research firms, and block explorers use the vaults.fyi API to power yield discovery, personalized insights, independent data validation, and onchain transactions.

<CardGroup cols={2}>
  <Card title="Arbitrum" icon="network-wired" href="/resources/case-studies/arbitrum">
    Native yield discovery inside the Arbitrum Portal, powered by standardized market data, transaction payloads, position tracking, and attribution.
  </Card>

  <Card title="Jumper Earn" icon="bolt" href="/resources/case-studies/jumper-earn">
    Unified cross-chain yield discovery and execution powered by vaults.fyi market data, transaction payloads, position tracking, and attribution.
  </Card>

  <Card title="Kraken Wallet" icon="wallet" href="/resources/case-studies/kraken-wallet">
    Personalized DeFi yield suggestions surfaced inside the wallet UI, with multi-chain coverage across Ethereum, Base, Optimism, Arbitrum, and Polygon.
  </Card>

  <Card title="Gauntlet" icon="flask" href="/resources/case-studies/gauntlet">
    Normalized yield data integrated into quantitative research models for DeFi risk analysis — safeguarding over \$42B in digital assets.
  </Card>

  <Card title="KPK" icon="treasure-chest" href="/resources/case-studies/kpk">
    Unified vault data, transaction flows, and position tracking supporting KPK’s DAO treasury mandates and the infrastructure behind the KPK app.
  </Card>

  <Card title="Otus" icon="robot" href="/resources/case-studies/otus">
    Agent-managed Smart Yield account powered by vaults.fyi discovery, Reputation Scores, transaction payloads, portfolio tracking, and attribution.
  </Card>

  <Card title="Maple Finance" icon="landmark" href="/resources/case-studies/maple-finance">
    Real-time benchmark comparisons and independent third-party APY validation for syrupUSDC, building investor trust through transparent performance data.
  </Card>
</CardGroup>

Ready to build? [Sign up](https://portal.vaults.fyi/signup) to get an API key and start integrating.