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

# Endurio

Every Bitcoin transaction can be sent with memo text in an OP\_RET output. This memo can be used to promote user brand in everyday transactions.

The Endurio Protocol is designed to create an incentive for Bitcoin users to include a small memo into their everyday transactions to promote any brand paid in the market.

<figure><img src="https://1996825599-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBCZXu1NdjMNzVXZQtXWz%2Fuploads%2FDqqBNkHs3qyn2rkPTslG%2Feconomic.svg?alt=media&amp;token=aa43c159-199c-47f3-b98a-e407d0507918" alt=""><figcaption></figcaption></figure>