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

# Technical Guides

- [SDK](https://docs.castle.finance/technical-guides/sdk.md): Integrate the Castle ecosystem of products into your app to supercharge your UX
- [Program](https://docs.castle.finance/technical-guides/program.md)
- [URLs and Addresses](https://docs.castle.finance/technical-guides/urls-and-addresses.md)