Tiny Engineer
An open-source, 3D-printable desktop robot that physically acts out what an AI coding agent is doing, reading, thinking, coding, and finishing tasks, driven over Wi-Fi by hooks from Cursor, Claude Code, or Antigravity CLI.
Tiny Engineer is a 3D-printable desktop robot that visibly reacts to what an AI coding agent is doing: reading, thinking, coding, and finishing a task, with an audio cue. It runs on an ESP32 over Wi-Fi and exposes a simple REST API, so any tool that can make an HTTP request can drive it.
Integrations turn an agent's lifecycle events into API calls: Cursor through its hooks and a bundled script, Antigravity CLI through its lifecycle hooks, and Claude Code through project hooks, each posting to the robot's REST endpoint over the local network; any other agent can integrate the same way with its own script or plugin. The hardware combines an ESP32-C3 controller, five servos for head, neck, hand, and body movement, a small OLED display for status and face animations, and a speaker for audio.
Build instructions cover shopping, 3D printing, wiring, flashing, assembly, and a setup wizard, with a bill of materials specifying the exact parts used.