Lip Sync API reference

Call Lip Sync from your own code with one PopNow API key. Below are the exact model IDs to send, every input field the model accepts, what each request costs in credits, and a request you can paste into a terminal.

At a glance

Made by: PopNow
Output: Video
From: 1.8 credits per second of output ($0.018)
Typical time: about 86 s
Model IDs: popnow/lip-sync-v1/lip-sync

1 credit = $0.01. A task holds the highest possible charge when it is accepted and settles the real amount when it finishes, rounded up to whole credits; failed tasks are not charged. Ask POST /api/v1/jobs/quote for the exact figure before you run.

Lip Sync

popnow/lip-sync-v1/lip-sync

Price

Option	Credits (per second of output)	US dollars
`Default`	1.8	$0.018

Parameters

Field	Type	Default	Allowed	What it does
`video_url`Required	`string`	—	—	Clip whose mouth movement is replaced. One clearly visible face works best; a clip shorter than the audio is looped to cover it.
`audio_url`Required	`string`	—	—	New speech to sync, 3 to 60 seconds, MP3 or WAV. The result runs as long as this audio; files outside that range are rejected before any charge.

Example request

This request runs as it is; any field you leave out uses its default. Put your key in POPNOW_API_KEY first.

The example uses PopNow sample files in audio_url, video_url. Replace them with your own public HTTPS links, uploads or saved assets.

POST /api/v1/jobs/createTask

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: $(uuidgen)" \
  -d '{
  "model": "popnow/lip-sync-v1/lip-sync",
  "input": {
    "video_url": "https://media.popnow.ai/effects/flower-bloom-1abd6efb.mp4",
    "audio_url": "https://media.popnow.ai/shortfilm/voices/Aoede-46e4c427.mp3"
  }
}'

The response carries a taskId straight away. Read the result with GET /api/v1/jobs/recordInfo, or add callBackUrl to be notified.

GET /api/v1/jobs/recordInfo

curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=TASK_ID_FROM_CREATE_TASK" \
  -H "Authorization: Bearer $POPNOW_API_KEY"