# LXD > This is the documentation for LXD, a system container and virtual machine manager. 2014-2026 AGPL-3.0, LXD contributors ## Pages in this subsection - [Remote API authentication](https://canonical.com/lxd/docs/default/authentication/index.html.md): Remote communications with the LXD daemon happen using JSON over HTTPS. ## Optional - [Top-level llms.txt](https://canonical.com/lxd/docs/default/llms.txt): Complete documentation index.