> For the complete documentation index, see [llms.txt](https://layer1.gitbook.io/layer1-foundation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://layer1.gitbook.io/layer1-foundation/protocols.md).

# Protocols

- [brc-20](https://layer1.gitbook.io/layer1-foundation/protocols/brc-20.md): BRC-20 is the inaugural standard of the foundation
- [Documentation](https://layer1.gitbook.io/layer1-foundation/protocols/brc-20/documentation.md): Latest brc-20 documentation
- [Indexing](https://layer1.gitbook.io/layer1-foundation/protocols/brc-20/indexing.md): In addition to usage rules there are a number of indexing rules
- [Proposals](https://layer1.gitbook.io/layer1-foundation/protocols/brc-20/proposals.md): brc-20 improvement proposals
- [BRC20 IP1: Issuance and Burn Enhancements](https://layer1.gitbook.io/layer1-foundation/protocols/brc-20/proposals/brc20-ip1-issuance-and-burn-enhancements.md): The first proposal of the maintainership era.
- [Implementations](https://layer1.gitbook.io/layer1-foundation/protocols/brc-20/implementations.md): brc-20 indexing implementations