~3800 stars; complements google-api-python-client (official-api); CLI over the sanctioned Google Calendar API.
Yes, gcalcli is open source under the MIT license.
gcalcli is free to use.
Yes, gcalcli can be self-hosted (the source is available under the MIT license).
~3800 stars; complements google-api-python-client (official-api); CLI over the sanctioned Google Calendar API. Auth via Google OAuth (own client credentials). No ToS risk.