Press the Button, Get a Video: HeyGen MCP Brings Avatar Generation to iPhone's Action Button via Grok

One sentence pressed into a finished avatar video—now an iPhone action button press away. HeyGen, an AI video generation platform, has published an official Model Context Protocol server that integrates with AI assistants, allowing users to generate talking-avatar videos directly from chat interfaces. In a recent demonstration, HeyGen showed the workflow: configure Grok—xAI's AI assistant—on your iPhone's action button (a feature Grok added in October 2026), connect the HeyGen MCP server, and a single button press opens a text-to-video workflow that turns a simple sentence into a finished, lip-synced avatar video with voice and optional B-roll cinematics.