1 The phone layer agents call

Envoy gives AI agents a phone.

Envoy is an MCP server that lets any AI agent work real Android apps: the things that only exist inside apps, like posting a Reel with a song from Instagram's library or checking an Uber fare. It does a new task with an agent on Meta's models, then learns it as a routine that checks every screen and replays with no model calls. When an app changes, the routine repairs itself. Anything an agent starts that can't be undone waits for your OK on your iPhone.

Muse, Claude Code and our own agent on Muse Spark have all called it over MCP.