JUMP TOGet startedIntroduction to the CMS (SaaS) REST APIAuthentication and authorizationOptimizely CMS Content APIChangesetsList changesetgetCreate changesetpostGet changesetgetDelete changesetdeleteCreate or replace changesetputGet changeset itemgetDelete changeset itemdeleteList changeset itemsgetCreate changeset itempostUpdate changeset itemputContentCreate contentpostGet contentgetUpdate contentpatchDelete contentdeleteGet content pathgetList content in containergetList assetsgetCopy contentpostRestore contentpostQuery versionsgetList versionsgetCreate versionpostDelete localedeleteGet versiongetUpdate versionpatchDelete versiondeleteContentTypesList content typesgetCreate content typepostGet content typegetCreate or replace content typeputUpdate content typepatchDelete content typedeleteDisplayTemplatesList display templatesgetCreate display templatepostGet display templategetCreate or replace a display templateputUpdate display templatepatchDelete display templatedeleteOauthRequest access tokenpostPackagesGet job statusgetExport packagegetImport packagepostPropertyFormatsList property formatsgetGet property formatgetPropertyGroupsList property groupsgetCreate property grouppostGet property groupgetCreate or replace property groupputUpdate property grouppatchDelete property groupdeleteCreate content typepost https://example.com/_cms/preview2/contenttypesCreate a new content type.