> ## 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.

# Vaults.fyi: The API for DeFi Yield

> Vaults.fyi gives you a single API to access market data, execute transactions, and track portfolios across 1,000+ DeFi yield strategies on 80+ protocols.

Vaults.fyi is the unified API for onchain yield. Whether you're building a wallet, a data analytics tool, or an AI agent, a single integration gives you standardized access to 1,000+ DeFi yield strategies across 80+ protocols and 20+ chains — without building a DeFi team or managing per-protocol integrations.

<CardGroup cols={2}>
  <Card title="Get Started with the SDK" icon="rocket" href="/sdk/quickstart">
    Install the TypeScript or Python SDK and make your first API call in minutes.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/overview">
    Explore all v2 endpoints for vaults, portfolio, transactions, and benchmarks.
  </Card>

  <Card title="Core Concepts" icon="book-open" href="/concepts/vault-discovery">
    Understand vault discovery, yield data, transaction flows, portfolio tracking, and borrowing.
  </Card>

  <Card title="AI & Agents" icon="robot" href="/ai-agents/overview">
    Use the MCP server or x402 pay-per-request for autonomous agent workflows.
  </Card>
</CardGroup>

## Why teams use Vaults.fyi

<CardGroup cols={3}>
  <Card title="Data & Analytics" icon="chart-bar" href="/concepts/yield-and-market-data">
    Standardized APY, TVL, fees, and the Reputation Score across all protocols — sourced hourly direct from onchain contracts.
  </Card>

  <Card title="Transactions" icon="arrow-right-arrow-left" href="/concepts/transaction-flows">
    Ready-to-sign deposit, redeem, and claim payloads for hundreds of vaults. No intermediary contracts, fully non-custodial.
  </Card>

  <Card title="Portfolio" icon="wallet" href="/concepts/portfolio-tracking">
    Track user positions, detect idle assets, and surface personalized yield opportunities matched to wallet holdings.
  </Card>
</CardGroup>

## Get started

<Steps>
  <Step title="Get an API key">
    [Create an account](https://portal.vaults.fyi/) to get access. You'll receive an API key to authenticate all requests.
  </Step>

  <Step title="Install the SDK">
    Install the `@vaultsfyi/sdk` package (TypeScript) or `vaultsfyi` package (Python) and initialize the client with your key.
  </Step>

  <Step title="Explore vault data">
    Call `getAllVaults()` or `GET /v2/detailed-vaults` to browse available yield opportunities filtered by network, protocol, asset, or APY.
  </Step>

  <Step title="Integrate into your product">
    Use transactional endpoints to prepare deposit and redeem payloads, and portfolio endpoints to track user positions and PnL.
  </Step>
</Steps>

## Trusted by leading teams

Vaults.fyi powers yield analytics, dashboards, and transaction flows for [Arbitrum Earn](/resources/case-studies/arbitrum), [Jumper](https://jumper.exchange/earn), [Kraken Wallet](https://www.kraken.com/wallet), [Gauntlet](https://gauntlet.xyz/), [Maple Finance](https://maple.finance/), [KPK](https://kpk.io/), and more. See the [case studies](/resources/case-studies) for integration details.

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