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

# What You Can Build

> Explore the possibilities with Houdini's cross-chain swap infrastructure

## Build Privacy-First Swap Solutions

Houdini provides a comprehensive API and widget infrastructure for building cross-chain swap applications with varying levels of privacy and user experience.

## Core Use Cases

<CardGroup cols={2}>
  <Card title="Private Cross-Chain Swaps" icon="sunglasses" href="/developer-hub/swap-flows/private-swap">
    Execute fully private cross-chain swaps without requiring wallet connections. Perfect for users who prioritize privacy and anonymity.
  </Card>

  <Card title="Standard Swaps" icon="shuffle" href="/developer-hub/swap-flows/standard-swap">
    Enable efficient swaps with a single CEX hop, balancing privacy with speed and liquidity.
  </Card>

  <Card title="Fixed Rate Swaps" icon="lock" href="/developer-hub/swap-flows/fixed-rate-swap">
    Lock the exchange rate at quote time for guaranteed output — ideal for partners who need price certainty. Available for standard (CEX) swaps only.
  </Card>

  <Card title="On-Chain DEX Swaps" icon="link" href="/developer-hub/swap-flows/dex-swap">
    Access top DEXs and bridges for transparent on-chain swaps with competitive rates.
  </Card>

  <Card title="Multi-Swap (Batch Orders)" icon="layer-group" href="/developer-hub/swap-flows/multi-swap">
    Create multiple swaps in a single request — ideal for payout distribution, batch airdrops, or any use case requiring simultaneous swaps to multiple recipients. Supports CEX and anonymous routing.
  </Card>

  <Card title="Private Payment Links (Coming soon)" icon="money-bill-transfer">
    Create shareable payment links for P2P transactions or merchant payment flows with built-in privacy.
  </Card>
</CardGroup>

## Integration Options

### Direct API Integration

Build custom swap experiences by integrating directly with Houdini's APIs:

* **REST API**: HTTP endpoints for full control over the swap experience
* Full control over user experience and flow
* Custom branding and UI design
* Advanced routing and configuration options

### Drop-in Widget

Embed a fully functional swap interface into your application:

* Pre-built UI with customizable theming
* Works on any website or web application
* Minimal integration effort
* Maintained and updated by Houdini

## Key Features

* **Multi-Route Support**: Choose between private (CEX-based), semi-private, pure DEX routing, or fixed rate standard swaps
* **Best Price Execution**: Automatic routing to find optimal rates across all supported venues
* **Privacy Options**: Varying levels of privacy to match your users' needs
* **Multi-Swap**: Create and track multiple swap orders in one API call, with Solana batch transaction support
* **Comprehensive Coverage**: Support for 100+ chains
* **Real-time Updates**: Track swap status via REST polling or WebSocket push
* **Production Ready**: Battle-tested infrastructure with enterprise-grade reliability

## Next Steps

<CardGroup cols={2}>
  <Card title="Architecture Overview" icon="diagram-project" href="/developer-hub/overview/architecture">
    Understand how Houdini's routing engine works
  </Card>

  <Card title="Get Started" icon="rocket" href="/developer-hub/getting-started/authentication">
    Obtain API keys and make your first swap
  </Card>
</CardGroup>