Pacer
Menu bar rings comparing weekly Claude and Codex limit use with your plan, warning when you will run out early.GetMIT
AI Monitor
Mac companion for a USB-connected ESP32 desk display that shows AI usage limits read through the CodexBar CLI.
MIT · Downloads from github.com
- License
- MIT
- Open source
- Source
- GitHub
- tobymarks
- Verified
- 2026
About AI Monitor
AI Monitor is the Mac side of a desk display. It asks the local CodexBar CLI for usage limits from providers such as Claude, ChatGPT, Gemini, Copilot and Cursor, then sends a compact frame over USB to a Cheap Yellow Display or a Guition ESP32-S3 board, which draws the dashboard. It is for people who want their limits on a second screen instead of a browser tab. The app does not talk to any AI service directly; CodexBar does.
It is not useful on its own. You need an ESP32 display board, CodexBar installed with its providers set up, and a USB data cable. The Mac app is a universal build for macOS 14 or later. The newest GitHub release is a Windows build, so use the app-v release for the Mac DMG. The README marks the display plugin and Claude Code window features as in development.
Information
- Source code
- tobymarks/esp32-ai-monitor
- License
- MIT
- Website
- tobymarks.github.io
- Download
- github.com
- Category
- Utilities
- Topics
- Menu bar apps
- Evidence checked
- Tags
OpenMacApps links to each project’s official download. Check its release notes for macOS version and Apple silicon support. The verification date records our license and source review, not a security audit. Read how we verify.
Sources and image credits
- github.com/tobymarks/esp32-ai-monitor
- github.com/tobymarks/esp32-ai-monitor/blob/main/LICENSE
- github.com/tobymarks/esp32-ai-monitor/releases
- tobymarks.github.io/esp32-ai-monitor/
License and artwork notices
For the Developer
Link to this page from your README with a badge.
[](https://openmacapps.com/apps/ai-monitor/)You Might Also Like
Refill
Menu bar tracker for AI subscription limits that announces when a window resets, through notch, notification or webhooks.GetMIT
AI Meter
Menu bar gauge showing how much of the Claude Code or Codex usage window is left, and when it resets.GetMIT
Claude God
A menu bar monitor for Claude plan quotas, Claude Code costs, burn rate and per-project usage.GetMIT
Claude Usage Tracker
A menu bar monitor for Claude session and weekly limits, with multiple profiles, history charts and a terminal status line.GetMIT
Claudometer
Menu bar readout of Claude and ChatGPT usage limits, styled like their settings screens, with service status.GetMIT
CodexReserve
Menu bar rings showing your Codex 5-hour and weekly limits, with reset times, refreshed in the background.GetMIT
Loom
Menu bar monitor for local Codex, Claude Code and Antigravity sessions, showing which agents are working, waiting or idle.GetMIT
Pi Stats
Menu bar dashboard for Pi coding agent usage: spend, models, languages, projects and tokens from local session logs.GetMIT
Pulse
A screen-edge rail of rings showing how much of each AI coding service's usage limit you have left.GetApache-2.0
QuotaBar
Menu bar monitor for Codex 5-hour and weekly usage limits and reset times, read locally, with no API key needed.GetMIT
TokenMeter
Menu bar app that tracks Claude Code rate limits, costs and daily usage from the Keychain token and local logs.GetMIT