Frame interpolation as a REST API.
Presign upload, probe the video, create a target-FPS job, then poll status until the output is ready.
For developers adding smoother video output to their own media pipelines.
The frame interpolation API flow
The API follows the same observable workflow as the browser studio and uses the same xeconds balance, so cost and status stay consistent across both surfaces.
- 01
Create a signed upload
Request an upload URL and send the video directly to object storage without proxying the media through your application server.
- 02
Probe and estimate
Read server-verified video metadata and request target-FPS estimates before creating a paid job.
- 03
Create and poll the job
Submit the chosen target FPS, then poll structured status values until the output is ready or the job fails and is refunded.
What is frame interpolation api in ReframeFX?
Presign upload, probe the video, create a target-FPS job, then poll status until the output is ready.
Does ReframeFX show the cost before rendering?
Yes. ReframeFX estimates charged seconds before a render using input duration, source FPS, target FPS, and interpolation factor.
Can I use ReframeFX without installing desktop software?
Yes. ReframeFX is a browser and API workflow for cloud frame interpolation.
Does the API use a separate balance?
No. Browser and API jobs use the same xeconds balance and the same target-FPS pricing rules.
Related frame interpolation guides
Where ReframeFX fits.
Pick the lane that matches your workflow.
Turn any clip into smooth 60fps or cinematic 240fps slo-mo in minutes, with no desktop app or code, priced transparently by the second.
| Decision | ReframeFX Browser studio + product API | Direct API WaveSpeed, HitPaw, fal.ai | Premium Topaz, Adobe, DaVinci | Local Flowframes, SVP |
|---|---|---|---|---|
| Effective price | $0.005 to $0.008/sec transparent, by processed second | $0.008 to $0.03/sec WaveSpeed floor; HitPaw higher | $25/mo+ license or subscription | $0 plus your GPU + setup time |
| FPS targets & slo-mo | 60 / 120 / 240 pick any target; true 2× / 4× slo-mo | Mostly 2× WaveSpeed fixed 2×; raw endpoints DIY N× | Any target | Any target |
| Scene change detection | Automatic learned cut detection, zero config | Basic SSIM threshold | Per-clip edit shot by shot | Opt-in manually tune sensitivity |
| API access | Same balance simple REST, one balance for studio + API | Yes separate per-product billing | Premium tier | No |
| Skill needed | None drop a clip, pick smoothness | Coding integrate the REST API | Editor skills NLE timeline or app presets | Tinkering GPU config + model files |
| No install | Browser | Browser API-first, not a browser studio | Desktop | Desktop |
| Cost shown before render | Always estimator + API endpoint | Per-second no upfront calc UI | Sub-billed | n/a |
| Setup time | < 1 min sign in, drop a clip | ~5 min create API keys, learn shape | 15+ min install + license + first export | 30+ min GPU drivers + model downloads |