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

# overview

- [What is Guardian](https://docs.medcrypt.com/overview/what-is-guardian.md)
- [Who should use Guardian?](https://docs.medcrypt.com/overview/who-should-use-guardian.md)
- [What is Public Key Infrastructure (PKI)?](https://docs.medcrypt.com/overview/what-is-public-key-infrastructure-pki.md)
- [Security best practices](https://docs.medcrypt.com/overview/security-best-practices.md)