ElevenLabs Dubbing

Endpoint

POST https://api.roasos.com/v1/dub/elevenlabs-dubbing

Send your API key as a bearer token. The key needs the scope api:write. Every paid request also needs an Idempotency-Key header.

The envelope fields quote_only, quote_id, webhook_url and wait_timeout_seconds behave the same on each model endpoint. Refer to Jobs and Quotes and credits.

Good at

Take an ad that works in one market into a second market. Send the clip and a two-letter language code; the model detects the speakers and the source language on its own. Use it when the voice matters more than the mouth: it translates the audio and does not change the lips.

The price is $0.6 for each minute of the SOURCE clip, rounded up to a whole minute. A 61-second clip costs two minutes, not 1.02. The quote is therefore exact, and settlement equals it.

Pricing

The unit is one source_second. Pricing key: elevenlabs-dubbing.

The credits come from the roasOS pricing table. No other field changes the price. To get the exact price of your request, send it with quote_only: true first.

Modes

• video-dub

Provider endpoints: fal-ai/elevenlabs/dubbing.

Request fields

The schema is strict. A field that is not in this table gets 400 unsupported_option. The field names are the roasOS role names. One role has one name in every family.

Media

This endpoint accepts these media roles:

• video_url — the source video

Every other role is refused: avatar_id, elements, product_id, product_images, references, reference_images, image_url, end_image_url, scene_id, scene_image, video_urls, audio_urls, audio_url, voice_id. A refused role gets 400 unsupported_option.

Prompt

None. This model takes no prompt.

Send language as an ISO 639-1 code, in lower case: es, fr, de, ja, pt, zh. Leave source_language out unless the source is hard to detect. Leave speaker_count out unless the model splits one speaker into two, or joins two into one.

Not exposed

These catalog entries describe omitted inputs, pinned values and source constraints. They do not imply that the provider accepts every listed field.

• audio_url — not accepted by this public endpoint.

Result

The result kind is video. Always present: url.

{
  "data": {
    "id": "gen_…",
    "kind": "video",
    "model": "elevenlabs-dubbing",
    "status": "completed",
    "result": {
      "url": "https://cdn.roasos.com/workspaces/ws_01/result"
    }
  }
}

The files are immutable objects on https://cdn.roasos.com. A result URL is a valid media input for your next request.

Example

The three steps are always the same: quote, run, poll.

# 1. Quote. Nothing is spent.
curl -X POST https://api.roasos.com/v1/dub/elevenlabs-dubbing \
  -H "Authorization: Bearer roasos_sk_live_..." \
  -H "Idempotency-Key: 0f1c9e2a-elevenlabs-dubbing-0001" \
  -H "Content-Type: application/json" \
  -d '{"quote_only":true,"language":"es","video_url":"https://cdn.roasos.com/workspaces/ws_01/uploads/video_url.mp4"}'
# 200 { "data": { "kind": "quote", "quote_id": "q_7Hk...", "credits": 8, "expires_at": "...",
#        "confirmation": { "model": "elevenlabs-dubbing", "example": "30s_source" } } }

# 2. Run. Same body, same Idempotency-Key, quote_id in place of quote_only.
curl -X POST https://api.roasos.com/v1/dub/elevenlabs-dubbing \
  -H "Authorization: Bearer roasos_sk_live_..." \
  -H "Idempotency-Key: 0f1c9e2a-elevenlabs-dubbing-0001" \
  -H "Content-Type: application/json" \
  -d '{"quote_id":"q_7Hk...","language":"es","video_url":"https://cdn.roasos.com/workspaces/ws_01/uploads/video_url.mp4"}'
# 201 { "data": { "id": "gen_...", "status": "queued", "credits_reserved": 8 } }

# 3. Poll, then read the result.
curl https://api.roasos.com/v1/jobs/gen_.../status -H "Authorization: Bearer roasos_sk_live_..."
curl https://api.roasos.com/v1/jobs/gen_.../result -H "Authorization: Bearer roasos_sk_live_..."

Today

POST /v1/dub/elevenlabs-dubbing is the only path to this model. There is no deprecated alias: POST /v1/generations has no dub type, so the old path cannot reach this family at all.

The source must be an MP4 your workspace owns, and at most 480 seconds. Audio-only input is refused: the provider fills its video output only from a video source, so an audio-only call returns nothing roasOS can store.

See also

• llms.txt for this model — the same facts as one plain-text file for an agent.
• GET https://api.roasos.com/v1/catalog/elevenlabs-dubbing — the machine-readable form: enums, defaults, limits and prices. Refer to the API reference.
• Jobs — how to poll a job and read its result.
• Provider endpoints: fal-ai/elevenlabs/dubbing.