Qlik Sense comes with a number of client-side APIs that can be used for building visualization extensions.
| Engine API | JSON RPC | |
| Extension API | JavaScript library | |
| Backend API | JavaScript library | |
| Root API | JavaScript library | |
| App API | JavaScript library | |
| Bookmark API | JavaScript library | |
| Field API | JavaScript library | |
| Global API | JavaScript library | |
| Table API | JavaScript library | |
| Navigation API | JavaScript library | |
| Selection API | JavaScript library | |
| Variable API | JavaScript library |
