| Access | Class Access |
| Account | Class Account |
| AJAX_Common | Class AJAX_Common |
| Builtin | Class Builtin |
| Chart | Class Chart |
| Common | Class Common |
| Cron | Class Cron |
| Date_Time | Class Date_Time |
| Enqueue | Class Enqueue |
| External_Integrations | Class External_Integrations |
| Fields | Class Fields |
| Files | Class Files |
| FontIcons | Class FontIcons |
| Form | Class Form |
| Login | |
| Logout | Class Logout |
| Class Mail | |
| Members | Class Members |
| Modal | Class Modal |
| Options | Class Options |
| Password | Class Password |
| Permalinks | Class Permalinks |
| Plugin_Updater | Class Plugin_Updater |
| Profile | Class Profile |
| Query | Class Query |
| Register | Class Register |
| REST_API | Class REST_API |
| Rewrite | Class Rewrite |
| Roles_Capabilities | Class Roles_Capabilities |
| Router | Class Router |
| Setup | Class Setup |
| Shortcodes | Class Shortcodes |
| Tracking | Class Tracking |
| User | Class User |
| User_posts | Class User_posts |
| Validation | Class Validation |