LivePortrait (Performance Transfer) API

Recreate a performer's exact head movement, facial expressions and lip motion on a DIFFERENT person. Supply a driving video (referenceVideoUrl) + a target face (referenceImageUrl). Face/head transfer; pair with a cloned voice for the full effect.

$0.053/s on Varosity credits ($0.050/s with your own key). Clips up to 60s.

Try LivePortrait (Performance Transfer) Get an API key

no fal account needed · no subscription · failed renders never billed

Best for

performance transfer from a driving video
transfers head motion + facial expressions + lip movement
onto a different person's photo
no training, runs in seconds

Trade-offs

face & head only (not full body/hands)
best with a clear frontal target portrait

Call it from your code

One Varosity key works for every model. Video renders are async — the response has a jobId; poll GET /api/v1/jobs/{jobId} until status is "succeeded", then read outputUrl.

curl -X POST https://varosity.ai/api/v1/video/generate \
  -H "Authorization: Bearer $VAROSITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "cinematic aerial of a coastal road at golden hour, slow push-in",
    "modelId": "fal-live-portrait",
    "aspectRatio": "16:9",
    "durationSec": 5
  }'

Or ask your agent

Connect Claude, Cursor, or any MCP client to https://varosity.ai/api/mcp with your key, then say:

"Use Varosity with fal-live-portrait to make a 5-second clip of …"

Agent setup guide