Veed Lipsync V2 API Documentation

Veed Lipsync V2 API Documentation

Playground

VEED Lipsync V2 generates production-quality lip-synced videos from a source video and a replacement audio track, matching mouth movements to the new audio for dubbing, localization, creator content, and talking-video workflows. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

VEED Lipsync V2 generates production-quality lip-synced video from a source video and replacement audio track. Upload a video with a visible speaker, provide the new audio, and the model produces a video where the mouth movement follows the supplied audio.

Why Choose This?

• Production-quality lipsync Generate natural mouth movement that follows the replacement audio track.

• Simple video-to-video workflow Provide one source video and one audio file without extra tuning parameters.

• Audio-driven duration The output video follows the uploaded audio duration.

• Standard video output The generated video is returned as a URL in the standard WaveSpeed prediction response.

Parameters

How to Use

1. Upload source video - Provide a video with a clear, visible face.
2. Upload audio - Provide the replacement audio track.
3. Submit - Generate the lip-synced video.
4. Review output - The result is returned as a video URL.

Pricing

Pricing is $0.075 per second of uploaded audio duration, rounded up to the next full second.

Best Use Cases

• Video dubbing - Replace speech while keeping the original speaker video.
• Localization - Create translated versions of existing presenter videos.
• Dialogue replacement - Update spoken lines without reshooting footage.
• Marketing content - Adapt spokesperson videos for different messages.
• Education and training - Reuse presenter footage with new narration.

Pro Tips

• Use clear audio with minimal background noise.
• Use a source video where the mouth is visible and well-lit.
• Avoid heavy face occlusion or fast camera movement for best results.
• Match the style and pacing of the audio to the source footage when possible.
• Ensure both URLs are publicly accessible.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-api-key"

REQUEST_BODY=$(cat <<'JSON'
{
  "audio": "https://interactive-examples.mdn.mozilla.net/media/cc0-audio/t-rex-roar.mp3",
  "video": "https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4"
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/veed/lipsync-v2" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "${TASK}" | jq -r '.urls.get // empty')
if [ -z "${RESULT_URL}" ]; then RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"; fi

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body \
    "${RESULT_URL}" \
    -H "Authorization: Bearer ${WAVESPEED_API_KEY}")
  RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  case "${STATUS}" in
    completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
    failed|cancelled|timeout) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "${STATUS}" >&2; exit 1 ;;
  esac
done

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters