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

# REI Network

- [Welcome to REI Network](https://docs.rei.network/rei-network/welcome-to-rei-network.md)
- [Why We build REI Network](https://docs.rei.network/rei-network/why-we-build-rei-network.md)
- [Introduction to $REI](https://docs.rei.network/rei-network/introduction-to-usdrei.md)