> ## Documentation Index
> Fetch the complete documentation index at: https://docs.houdini.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

> [card] [Private Cross-Chain Swaps](https://docs.houdini.com/developer-hub/swap-flows/private-swap.md)
>
> Execute fully private cross-chain swaps without requiring wallet connections. Perfect for users who prioritize privacy and anonymity.

> [card] [Private Routes with an On-chain Hop](https://docs.houdini.com/developer-hub/swap-flows/private-onchain-hop.md)
>
> Swap privately to almost any token on Solana and high-volume EVM chains, via a hub token and an on-chain hop.

> [card] [Standard Swaps](https://docs.houdini.com/developer-hub/swap-flows/standard-swap.md)
>
> Enable efficient swaps with a single CEX hop, balancing privacy with speed and liquidity.

> [card] [Fixed Rate & Reverse Quote](https://docs.houdini.com/developer-hub/swap-flows/fixed-rate-swap.md)
>
> Lock the exchange rate at quote time for guaranteed output — ideal for partners who need price certainty. Available for standard (CEX) swaps only.

> [card] [On-Chain DEX Swaps](https://docs.houdini.com/developer-hub/swap-flows/dex-swap.md)
>
> Access top DEXs and bridges for transparent on-chain swaps with competitive rates.

> [card] [Split (Batch Orders)](https://docs.houdini.com/developer-hub/swap-flows/split.md)
>
> 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] Request (Coming soon)
>
> Get paid privately through shareable payment links, for P2P transactions or merchant payment flows.

## 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 with a single iframe:

* Pre-built UI, configurable via URL parameters (theming coming soon)
* Works on any website or web application
* Minimal integration effort
* Maintained and updated by Houdini

See the [Widget Overview](https://docs.houdini.com/developer-hub/widget/overview.md) for the embed snippet and configuration options.

## Key Features

* **Multi-Route Support**: Choose between private (CEX-based), semi-private, pure DEX routing, or fixed rate standard swaps
* **Private Swaps to More Tokens**: An optional on-chain hop lets private swaps reach almost any token on Solana and high-volume EVM chains
* **Best Price Execution**: Automatic routing to find optimal rates across all supported venues
* **Privacy Options**: Varying levels of privacy to match your users' needs
* **Split**: 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

> [card] [Architecture Overview](https://docs.houdini.com/developer-hub/overview/architecture.md)
>
> Understand how Houdini's routing engine works

> [card] [Get Started](https://docs.houdini.com/developer-hub/getting-started/authentication.md)
>
> Obtain API keys and make your first swap


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