Video Reframe API
Change a video's aspect ratio without cropping: the subject is recentred and the missing edges are generated. Send the clip and the format, get the same clip in the new shape.
/v1/generateworkflow: reframe_video-v1One endpoint serves every workflow — this page documents reframe_video-v1, the current version. Credits are debited at submission (2.2 cr/s standard, 4.4 cr/s pro); a failed generation is refunded automatically. Earlier versions of this endpoint, if any, keep being served under their own names. This workflow needs an active plan.
| Parameter | Value for this workflow |
|---|---|
| workflow | "reframe_video-v1" required |
| source_video | Video to reframe — one public HTTPS URL.required |
| duration | per engine (seconds) |
| tier | "standard" (2.2 cr/s) or "pro" (4.4 cr/s) |
| webhook_url | Optional — we POST the outcome here when the generation settles. Without it, poll the URL returned in the response until the status settles. |
Example request
curl -X POST https://thenewblack.ai/api/v1/generate \
-H "Authorization: Bearer tnb_live_XXXXXXXXXXXX" \
-H "Content-Type: application/json" \
-d '{
"workflow": "reframe_video-v1",
"source_video": "https://example.com/clip.mp4",
"tier": "standard"
}'// 202 Accepted
{
"generation_id": "3f1c9a6e-...",
"status": "running",
"poll": "/api/v1/generations/3f1c9a6e-..."
}Example response
Poll /v1/generations/{id} (or receive the webhook) until the generation settles:
// 200 OK
{
"generation_id": "3f1c9a6e-...",
"workflow": "reframe_video",
"status": "succeeded",
"result": {
"type": "video",
"url": "https://.../result.mp4",
"thumbnail": "https://.../thumb.webp"
}
}Results are stored for 48 hours — copy them to your own storage. Authentication, errors and webhooks are documented in the full API reference.
Frequently asked questions
Which formats does the reframe endpoint accept?
9:16, 16:9, 1:1, 4:5 and 5:4, rendered in 720p (standard) or 1080p (pro), from a clip of up to 60 seconds.
How is it billed?
By the second of the video you send, at the resolution of the tier. The length is read from the file before the job starts.
How much does it cost?
2.2 credits per second on the standard tier, 4.4 per second on pro. Credits come with plans and packs; a failed generation is always refunded.
Other endpoints: Virtual Try-On API · AI Fashion Models API · Fashion Design API · Reimagine Model API · Swap Model API · AI Stylist API · all endpoints