categoryID

categoryID (int): This param limits the list to groups from a given category.

Example query:

https://api.countrysidebible.org/groups/?categoryID=1

This will return a list of all groups related to category 1. If you would like to include groups from more than one category, you can concatenate IDs with a + delimiter.

Example query with multiple categories:

https://api.countrysidebible.org/groups?categoryID=2+3

The full list of categories is available here:

https://api.countrysidebible.org/categories