# UCAN

> User-Controlled Authorization Network (UCAN) is a trustless, secure, local-first, user-originated, distributed authorization scheme. This document provides a high-level overview of the UCAN specification and its components.

## Documentation Sets

- [Abridged documentation](https://ucan.xyz/llms-small.txt): a compact version of the documentation for UCAN, with non-essential content removed
- [Complete documentation](https://ucan.xyz/llms-full.txt): the full documentation for UCAN

## Notes

- The complete documentation includes all content from the official documentation
- The content is automatically generated from the same source as the official documentation