> For the complete documentation index, see [llms.txt](https://docs.ellipsis-drive.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ellipsis-drive.com/developers/api-v3/ogc-protocols/stac.md).

# STAC

#### Authentication

For compatibility reasons with STAC browser, the endpoints in this section accept the login token in the URL. However, the endpoints still accept the login token in the authorization header, which is still the recommended way for authentication if your workflow supports it.