# Sync. lipsync MCP — guide skill for dubbing & lip sync

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Official MCP for the sync. lipsync API: re-time mouths in existing footage to new or translated audio.

- **Type:** [Guide](https://varg.ai/how-to/guides.md) · [Dubbing & lip sync](https://varg.ai/how-to/browse/skills/dubbing.md)
- **Slug:** `sync-lipsync`
- **Status:** live
- **Publisher:** sync. (community)
- **License:** unknown
- **Source:** https://sync.so/docs/plugins-and-extensions/mcp-server
- **Works in:** Claude Code, Cursor, Any MCP client
- **Requires:** SYNC_API_KEY
- **Cost:** Usage-based

## What it does

sync. (Synchronicity Labs) makes lipsync models that edit an existing video so the speaker's mouth matches a new audio track, the last step of a dubbing or line-replacement edit. Its open-source MCP server generates tools from the API spec at startup and works in Claude Code, Claude Desktop, Cursor and Windsurf.

## Use when

- lip-sync a dubbed video
- replace a line of dialogue after the shoot
- localize a talking-head ad

## Install

- Claude Code: `claude mcp add sync -- npx -y @sync.so/mcp-server --api-key YOUR_API_KEY`

## More dubbing & lip sync skills

- [ElevenLabs Dubbing](https://varg.ai/how-to/skills/elevenlabs-dubbing.md): Dub video and audio into other languages while keeping each original speaker's voice.
- [ElevenLabs Dubbing (inference.sh)](https://varg.ai/how-to/skills/inference-sh-elevenlabs-dubbing.md): Dub audio or video into 29 languages while keeping the speaker's voice, via inference.sh.
- [VideoLingo](https://varg.ai/how-to/skills/videolingo.md): One-click subtitle cutting, translation, alignment and dubbing with Netflix-style subtitle rules.
- [pyVideoTrans](https://varg.ai/how-to/skills/pyvideotrans.md): Full video translation: ASR, subtitle translation, multi-voice dubbing and muxing, with a headless CLI.
- [OpenCreator (formerly KrillinAI)](https://varg.ai/how-to/skills/opencreator.md): Creator workspace on Codex CLI: download, translate, dub and edit video with reusable Skills and Agents.
- [OpenMontage Localization & Dub](https://varg.ai/how-to/skills/openmontage-localization-dub.md): Transcript-first translation of an existing video into subtitles, dubbed audio and optional lip-synced language variants