Split Reel API

Two halves wipe through your four photos or clips while a headline, then a second one and a small line, rise letter by letter. Made for launches and drops.

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POST/v1/generateworkflow: motion_split_reel-v1

One endpoint serves every workflow — this page documents motion_split_reel-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_split_reel-v1" required
picture_1	Picture 1 — one public HTTPS URL.required
picture_2	Picture 2 — one public HTTPS URL.required
picture_3	Picture 3 — one public HTTPS URL.required
picture_4	Picture 4 — one public HTTPS URL.required
fields.headline	Headline. Defaults to “NEW COLLECTION”.
fields.subline	Second. Defaults to “SET YOUR REMINDER NOW”.
fields.note	Small line. Defaults to “Friday, 10 AM”.
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_split_reel-v1",
    "picture_1": "https://example.com/image.jpg",
    "picture_2": "https://example.com/image.jpg",
    "picture_3": "https://example.com/image.jpg",
    "picture_4": "https://example.com/image.jpg",
    "fields": {
      "headline": "NEW COLLECTION",
      "subline": "SET YOUR REMINDER NOW",
      "note": "Friday, 10 AM"
    },
    "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_split_reel",
  "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 Split Reel endpoint need?

picture_1 (Picture 1), picture_2 (Picture 2), picture_3 (Picture 3), picture_4 (Picture 4), fields.headline (Headline, optional), fields.subline (Second, optional), fields.note (Small line, 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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