Video Translator API

About Video Translator

Dub a clip into 28 languages with subtitles, billed per minute.

Call it with the model name popnow/video-translator-v1/video-translate on POST /jobs/createTask, from $0.005.

Introduction

Video Translator dubs a talking clip into another language. Send the footage in video_url and choose target_language; the tool transcribes the speech, translates it, voices it again in time with the original lines and returns the same picture with the new audio. Turn on clone_voice and each speaker keeps a voice modelled on their own.

Key features

The speakers still sound like themselves

With clone_voice on, the dub is spoken in a voice built from each speaker's own: in our two-person test the woman and the man came back in Spanish with their own timbre, and each line started where the original line started.

Your names stay your names

List terms in glossary as {term, translation} pairs and they are translated your way every time. In our test a phrase listed in the glossary was used verbatim in both lines where it occurred.

Request parameters

Pricing

Prices are in USD. The API uses a separate USD balance. Website credits cannot be used or transferred to it, and API funds cannot be transferred to website credits. When a task is accepted, we reserve the maximum quoted amount from your API balance. On completion, we charge for actual usage, never more than the hold, and release the remainder. If the task fails, the hold is released.

Send the same request body to POST /jobs/quote to see the estimated and maximum USD charge before running. A quote does not run the task or charge your balance.

Use cases

Localising short-form video

Post the same clip for several language markets without booking a voice actor for each one.

Dubbing characters from video models

Generated characters that speak English can be dubbed into your audience's language while keeping the character's voice.

Prompt guide & pro tips

Set the spoken language when there is music

Automatic detection is reliable on clean speech. If a task fails with a message about processing the video, set source_language and send it again.

Tell it how many people talk

speaker_count is optional, but setting it on a two-person dialogue keeps each line with the right voice.

Plan for the picture

Only the audio is replaced. For close-ups where the mouth matters, run the dubbed clip through the Lip Sync tool afterwards.

API quick start

Call the Video Translator API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow-. API calls use your separate USD balance.
2. Send the request. POST /jobs/createTask with model popnow/video-translator-v1/video-translate and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "popnow/video-translator-v1/video-translate",
  "input": {
    "video_url": "https://media.popnow.ai/effects/flower-bloom-1abd6efb.mp4",
    "target_language": "en",
    "source_language": "auto"
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Video Translator API questions

Other video APIs

• MiniMax H3 APIExpressive clips with audio, up to 30 seconds or 2KFrom $0.125 for a 5-second clip
• VEED Dubbing Pro APIStudio-grade dubbing with accents, voice match and lip syncFrom $0.24 per second
• VEED Dubbing APIDub into 86 languages in each speaker’s voice, lips redrawnFrom $0.144 per second

More about Video Translator

Try it

Video Translator AI Image Generator onlineCreate videos with Video Translator in PopNow

Docs

Video Translator model ID and input schema in the API docsPopNow API quickstart: send your first requestImage to video guide for the PopNow APIWebhooks: get Video Translator results without polling