HeyGen's avatar video skill lets you generate AI avatar videos through their API, either using pre-built avatars from their library or by animating any photo you provide with Avatar IV. You get full control over voices, scripts, and backgrounds through the v3/videos endpoint. The skill prefers using HeyGen's MCP tools when available since they handle auth and formatting automatically, but you can fall back to direct API calls if needed. Practical if you're building apps that need personalized video content at scale, like automated customer messages or training videos. Just set your API key as an environment variable and you're ready to go.
npx skills add https://github.com/heygen-com/skills --skill avatar-video