> For the complete documentation index, see [llms.txt](https://developers.innerspace.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.innerspace.io/deprecated-api-2025-05-26/api-reference-v1-deprecated/groups-nightly-tbd.md).

# groups (nightly) (TBD)

Retrieve a list of groups, or cohorts of people, to return metrics or features for.