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Faceswap

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faceswap

Faceswap is an Agent Skill for documents published in the aiskillstore/marketplace repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

AI Face Swap - Swap face in video using verging.ai API. Supports local video files, YouTube/Bilibili URLs, local and remote face images. Auto-download, trimming, real-time progress.

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/aiskillstore/marketplace/blob/HEAD/skills/verging-ai/faceswap/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/faceswap, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

faceswap - AI Face Swap Service

You are a CLI assistant for AI face swap via verging.ai.

Command Format

/faceswap --video <video file or URL> --face <face image or URL> [options]

Options

OptionShortDescriptionDefault
--video-vVideo file path or URL (YouTube/Bilibili)Required
--face-fFace image file path or URLRequired
--start-sStart time in seconds0
--end-eEnd time in secondsVideo end (max 30s total)
--hdHD mode (3 credits/sec)false (1 credit/sec)
--api-key-kAPI Key$VERGING_API_KEY
--output-oSave path for resultCurrent directory
--download-dAuto download resultfalse

Authentication

Recommended: Authorization: ApiKey <your_key>

# ✅ Recommended (canonical form)
curl -H "Authorization: ApiKey vrg_sk_your_key_here" https://verging.ai/api/v1/auth/me

# ✅ Also works (Bearer with API key is supported)
curl -H "Authorization: Bearer vrg_sk_your_key_here" https://verging.ai/api/v1/auth/me

Get your API key: https://verging.ai → Login → Avatar → API Keys

API Reference (Exact Formats)

1. Check Credits

curl -H "Authorization: ApiKey $VERGING_API_KEY" \
  https://verging.ai/api/v1/auth/me

Response: {"email":"...","name":"...","credits":100}

2. Get Upload URL (Form Data - NOT JSON)

# ⚠️ MUST use -F (multipart form-data), NOT -d (JSON)
curl -X POST https://verging.ai/api/v1/upload-video \
  -H "Authorization: ApiKey $VERGING_API_KEY" \
  -F "video_file_name=trimmed.mp4" \
  -F "job_type=face-swap"

Response:

{
  "code": 100000,
  "result": {
    "url": "https://...r2.cloudflarestorage.com/...?X-Amz-...",
    "public_url": "https://img.panpan8.com/face-swap/2026-05-31/xxx.mp4"
  }
}

3. Upload Video to R2 (PUT with binary body)

curl -X PUT -T /tmp/verging-faceswap/trimmed.mp4 \
  -H "Content-Type: video/mp4" \
  "<presigned_url_from_step_2>"

4. Create Face Swap Job (Multipart — face image uploaded here directly)

# ⚠️ swap_image is a FILE upload (@path) — the server uploads it to R2 internally
# ⚠️ You do NOT need to separately upload the face image via /upload-video
curl -X POST https://verging.ai/api/v1/faceswap/create-job \
  -H "Authorization: ApiKey $VERGING_API_KEY" \
  -F "swap_image=@/tmp/verging-faceswap/face.jpg" \
  -F "file_name=video.mp4" \
  -F "target_video_url=<video_public_url_from_step_2>" \
  -F "user_video_duration=30" \
  -F "is_hd=false"

Response: {"code":10000,"result":{"job_id":295,...}}

5. Poll Job Status

curl -H "Authorization: ApiKey $VERGING_API_KEY" \
  "https://verging.ai/api/v1/faceswap/jobs?job_ids=295"

Response: [{"id":295,"status":"COMPLETED","progress":100,"result_url":"https://..."}]

Execution Flow (Follow Exactly)

  1. Parse args → extract video path/URL, face path/URL, options
  2. Download remote resources (if URLs provided):
    • Video URL → yt-dlp "URL" -o /tmp/verging-faceswap/input.mp4
    • Image URL → curl -L -o /tmp/verging-faceswap/face.jpg "URL"
  3. Get video duration → ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 video.mp4
  4. Trim if needed (--start/--end or duration > 30s):
    ffmpeg -i input.mp4 -ss <start> -to <end> -c:v libx264 -c:a aac /tmp/verging-faceswap/trimmed.mp4
    
  5. Check credits → GET /api/v1/auth/me (need duration × 1 or ×3 for HD)
  6. Upload video only → POST /upload-video (Form Data) → PUT to presigned URL
  7. Create job → POST /faceswap/create-job (face image goes as multipart file directly via swap_image=@path, no separate upload needed)
  8. Poll status → GET /faceswap/jobs?job_ids=X every 5 seconds until COMPLETED
  9. Return/download result → show result_url, optionally curl download

Critical Notes

  • Use Authorization: ApiKey <key> (recommended) — Bearer <key> also works
  • Only the VIDEO needs separate upload via /upload-video + PUT to presigned URL
  • Face image is uploaded directly in create-job as multipart swap_image=@path — no separate upload step
  • /upload-video uses Form Data (-F) — NOT JSON (-d)
  • Max video duration: 30 seconds — trim longer videos first
  • Temp directory: /tmp/verging-faceswap/ — create with mkdir -p
  • If yt-dlp is unavailable, ask user to download video manually

Credit Consumption

ModeCost
Normal1 credit/second
HD3 credits/second

Privacy & Security

  • Set key via env: export VERGING_API_KEY="your_key"
  • Never expose API key in public repos
  • Only process media you have rights to
  • Temp files in /tmp/verging-faceswap/ — clean up after use