> For the complete documentation index, see [llms.txt](https://www.apibuilder.com/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.apibuilder.com/home/projects/authentication.md).

# Authentication

Within API Builder you can choose 3 types of access level to your API 

Public 

Owner

Users