Video Body Swap

Video Body Swap

Playground

Video Body Swap replaces the body in a target video with your face. Upload a face image and a body video to get a seamless swap. Ready-to-use REST inference API, no coldstarts, affordable pricing.

Features

Video Body Swap replaces the body in a target video with your face. Upload a face image and a body video — AI seamlessly composites your likeness onto the moving subject, frame by frame, with natural blending and consistent identity throughout the clip.

Why Choose This?

• Seamless face-to-body compositing Advanced AI tracks the subject across every frame and blends your face naturally onto the body in motion, maintaining consistent identity and lighting.

• Simple two-input workflow Just a face image and a body video — no masking, no manual keyframing, no technical setup required.

• Wide range of use cases Works across talking head videos, dancing clips, fitness content, and more.

• Production-ready API No cold starts, predictable per-second pricing, and a ready-to-use REST endpoint for seamless integration.

Parameters

How to Use

1. Upload your face image — a clear, front-facing portrait with good lighting works best.
2. Upload your body video — the video whose body you want to swap the face onto.
3. Submit — AI processes the swap frame by frame and returns the finished video.

Pricing

$0.08 per second of input video, with a minimum charge of 5 seconds and a maximum billable duration of 120 seconds.

Billing Rules

• Minimum charge: 5 seconds
• Maximum billable duration: 120 seconds
• Videos longer than 120 seconds are capped at 120 seconds for billing purposes

Best Use Cases

• Creative content — Place yourself into dance, performance, or action videos.
• Marketing & advertising — Swap faces for personalized promotional video content.
• Entertainment & social media — Generate fun, shareable body-swap clips for Reels and TikTok.
• Developer integrations — Embed body swap functionality into apps and pipelines via the REST API.

Pro Tips

• Use a high-quality, well-lit face photo with a clear, unobstructed view for the most natural compositing result.
• Videos with a single clearly visible subject and stable lighting produce the cleanest swaps.
• Avoid heavily cropped or low-resolution face images — the more facial detail the AI has, the better the blend.
• For best results, the face in the image should be roughly front-facing and similar in angle to the subject in the video.

Notes

• Both image and video are required fields.
• Ensure URLs are publicly accessible if using links rather than direct uploads.
• Videos longer than 120 seconds are accepted but billing is capped at 120 seconds.
• Please ensure your content complies with WaveSpeed AI’s usage policies.

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'
{
  "image": "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg",
  "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/wavespeed-ai/video-body-swap" \
  -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