Writing · Jun 3, 2026
1 token on your wrist: a $40 Claude meter
A $40 ESP32 smartwatch reads my Claude quota in real time. The trick is that the watch never talks to Claude. An OCI VM pings the API every five minutes with max_tokens 1, reads the quota out of the response headers, and pushes the result through Tailscale, an Android foreground service, and BLE to a wrist.