> For the complete documentation index, see [llms.txt](https://qualitax.gitbook.io/interop/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://qualitax.gitbook.io/interop/industry-initiatives/erc-3643-permissioned-tokens.md).

# ERC-3643: Permissioned Tokens

<table data-header-hidden><thead><tr><th width="210"></th><th></th></tr></thead><tbody><tr><td><strong>Initiative Name</strong></td><td>ERC-3643: Permissioned Tokens</td></tr><tr><td><strong>Organization</strong></td><td></td></tr><tr><td><strong>Type</strong></td><td>Standard</td></tr><tr><td><strong>Description</strong></td><td>The ERC-3643, previously known as the T-REX protocol, is an open-source suite of smart contracts that enables the issuance, management, and transfer of permissioned tokens. $28bn worth of assets have been tokenized through ERC-3643.</td></tr><tr><td><strong>Ecosystem</strong></td><td>EVM</td></tr><tr><td><strong>Public Participants</strong></td><td>Tokeny</td></tr><tr><td><strong>Link</strong></td><td><a href="https://www.erc3643.org/">https://www.erc3643.org/</a></td></tr></tbody></table>