Corridor Key vs Knockout API
| Corridor Key | Knockout API | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $0.02/mo |
| Open source | No | No |
| Platforms | Web | api, Web |
| Free plan | Yes | Yes |
| Background replacement | Yes | Yes |
| Supported input formats | MP4 | mp4, mov, avi, webm, mkv |
| Background blur | — | Yes |
| Transparent video export | — | Yes |
| Maximum resolution | — | 1080p |
| Maximum clip length | — | 30 min |
| Batch processing | — | Yes |
Both are listed in Best Video Background Removal Software. On Inferse, Knockout API scores higher on our published basis.