> For the complete documentation index, see [llms.txt](https://docs.put.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.put.com/library/put-multi-sign-program/operation-overview/add-singer.md).

# Add-singer

Add-singer is a multi-signature interface in a multi-signature contract, used to add new singers to multi-signature accounts.