Tools

Official HeyGen skill: translates existing videos into 175+ languages with dubbing that clones the speaker's voice and re-syncs lips; you can proof subtitles before rendering. Needs a HeyGen account with credits and an API key plus HeyGen CLI, or the HeyGen MCP.

Official iFlytek skill (beta): translates and AI-dubs videos between Chinese, English, Japanese, Korean, Russian, French, Spanish, Arabic and Cantonese, tracks jobs, fetches subtitles and video. Needs iFlytek API keys and Python 3; input must be an online MP4 (Alibaba OSS per docs), up to 5 min.

Perso AI's official plugin: dub videos into other languages with lip sync, transcribe to SRT, translate and burn in subtitles, cut vertical clips. Subtitle and clip tools are free and local; dubbing, lip sync and transcription need a Perso account, billed per second. Needs Node.js 18+.