> For the complete documentation index, see [llms.txt](https://docs.xyxyx.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xyxyx.pro/token-standards/erc-721.md).

# ERC-721

The ERC-721 is a non-fungible token standard. 

Xyxyx introduces a fully blockchain-based version of the ERC-721 standard, featuring native Base64-encoded SVG outputs as the `tokenURI`.

* [Parameters](/token-standards/erc-721/parameters.md)