# Page Not Found

The URL `0x-v4` does not exist.

You might be looking for one of these pages:
- [V3 or V4 - Which version should I use?](https://docs.swapsdk.xyz/v3-or-v4-which-version-should-i-use.md)
- [Orderbook API](https://docs.swapsdk.xyz/orderbook-api.md)
- [ETH/Native Token support](https://docs.swapsdk.xyz/readme/eth-native-token-support.md)
- [Quick Start](https://docs.swapsdk.xyz/readme/quick-start.md)
- [Batch Buy NFTs](https://docs.swapsdk.xyz/readme/batch-buy-nfts.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.swapsdk.xyz/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.swapsdk.xyz/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/v3-or-v4-which-version-should-i-use.md`)
- Use `Accept: text/markdown` header for content negotiation