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

# Counterparties & venues

The custodians, clearing venues, and exchanges Theo depends on.