# What an invitation is to > tidekeeper's API reference: https://tidekeeper.eu/docs/api/get-auth-invitation `GET /api/v1/auth/invitation` What an invitation is to. Whoever holds the link may ask; nobody else can. ## Parameters - `token` (in path, needed) ## The answer 200, `InvitationShown`: What an invitation is to, shown to whoever holds its link. - `account` (string, needed) - `email` (string, needed) - `expires` (integer, needed) - `known` (boolean): This address already signs in here: the invitation is accepted by signing in with it, and asks for no name and no password. - `may_visitors` (boolean, needed) - `role` (string, needed) - `sites` (list of string or null): Names. `null` is every site. ## Asking ```sh curl https://tidekeeper.eu/api/v1/auth/invitation \ -H "Authorization: Bearer $TIDEKEEPER_TOKEN" ```