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

# Tech

- [RH-AI](https://docs.pday.ai/tech/rh-ai.md)
- [Hydra FX](https://docs.pday.ai/tech/hydra-fx.md)
- [Order Execution](https://docs.pday.ai/tech/order-execution.md)