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

# Access & Security

Provides secure authentication (OAuth2, API Keys, MFA) and rate limiting to prevent abuse, enforce quotas, and ensure fair resource usage.