Cut Montage API

Hard cuts in the rhythm of a campaign film: full frame, punch-in close-ups, the look framed in a colour panel, opened and closed by a word. Three to six clips or photos.
/v1/generateworkflow: motion_cut_montage-v1One endpoint serves every workflow — this page documents motion_cut_montage-v1, the current version. Credits are debited at submission (1 cr/s standard, 1 cr/s pro); a failed generation is refunded automatically. Earlier versions of this endpoint, if any, keep being served under their own names.
| Parameter | Value for this workflow |
|---|---|
| workflow | "motion_cut_montage-v1" required |
| slot_1 | Clip 1 — one public HTTPS URL.required |
| slot_2 | Clip 2 — one public HTTPS URL.required |
| slot_3 | Clip 3 — one public HTTPS URL.required |
| slot_4 | Clip 4 — one public HTTPS URL. |
| slot_5 | Clip 5 — one public HTTPS URL. |
| slot_6 | Clip 6 — one public HTTPS URL. |
| fields.word | Word. Defaults to “NEW SEASON”. |
| fields.panel | Panel colour. Defaults to “#8E1B1E”. |
| fields.end | End colour. Defaults to “#0B0B0B”. |
| duration | 10 (seconds) |
| tier | "standard" (1 cr/s), "pro" (1 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": "motion_cut_montage-v1",
"slot_1": "https://example.com/image.jpg",
"slot_2": "https://example.com/image.jpg",
"slot_3": "https://example.com/image.jpg",
"slot_4": "https://example.com/image.jpg",
"slot_5": "https://example.com/image.jpg",
"slot_6": "https://example.com/image.jpg",
"fields": {
"word": "NEW SEASON",
"panel": "#8E1B1E",
"end": "#0B0B0B"
},
"duration": "10",
"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": "motion_cut_montage",
"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
What does the Cut Montage endpoint need?
slot_1 (Clip 1), slot_2 (Clip 2), slot_3 (Clip 3), slot_4 (Clip 4, optional), slot_5 (Clip 5, optional), slot_6 (Clip 6, optional), fields.word (Word, optional), fields.panel (Panel colour, optional), fields.end (End colour, optional) — all as listed in the parameter table above, and in GET /v1/catalog.
How is it billed?
Per second of output, at the standard, pro or ultra rate shown above; a failed generation is refunded.
How much does it cost?
1 credit per second on the standard tier, 1 per second on pro. Credits come with plans and packs; a failed generation is always refunded.
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