CodexBar is a Mac menu bar app that surfaces live token consumption, cost, and session activity for OpenAI Codex and Anthropic Claude directly in your toolbar — no browser tab required.
What is CodexBar?
CodexBar is a lightweight macOS utility that lives in your menu bar and keeps a running eye on your AI usage across Codex and Claude. Think of it as the little fuel gauge your AI workflow never had: glanceable, always current, and out of the way until you need it.
If you're the kind of developer who leaves Codex agents churning overnight or who leans on Claude for long research sessions, you've probably experienced the moment of mild horror when you open your dashboard and discover how many tokens evaporated while you weren't looking. CodexBar exists precisely to prevent that surprise.
What does CodexBar do best?
CodexBar excels at giving you an ambient, zero-friction read on AI consumption — the kind of awareness you'd normally have to interrupt your flow to check. A quick glance at the menu bar icon tells you whether you're burning through your quota at a sensible pace or spiralling toward your monthly cap before lunch.
- Live usage readout — token counts and cost estimates update in near real-time so you're never flying blind mid-session.
- Multi-model awareness — spans both Codex and Claude, which matters if you bounce between coding agents and conversational assistants in the same afternoon.
- Native menu bar presence — no Electron wrapper, no persistent dock icon eating screen real estate. It belongs in the same tier as Stats or iStatistica: tools that earn their sliver of menubar width.
- Session-level context — you can gauge not just cumulative usage but what the current session is costing, which helps calibrate prompt strategy on the fly.
Where it pulls ahead of simply bookmarking your provider's usage page is friction. Switching to a browser tab, navigating to the dashboard, waiting for the chart to load — that's enough of a detour that most developers just don't do it. CodexBar collapses that detour to a single eye movement.
Is CodexBar free?
CodexBar is free to download. I'd encourage you to check the official site at codexbar.app for the current pricing model, as the app is actively maintained and a paid tier or one-time purchase may apply for certain features. The install is painless — it won't ask you for a credit card before you've had a chance to decide if it earns a spot in your toolbar.
Who should use CodexBar?
Anyone paying for API access to Codex or Claude out of pocket — freelancers, indie hackers, solo founders — will find the most value here. When you're on a metered plan and there's no team budget absorbing overages, knowing your burn rate in real time changes how you prompt and how aggressively you let agents iterate.
It's also genuinely useful for developers who run automated pipelines (code-review agents, documentation generators, CI-triggered summarisers) where token consumption can spike without any direct human interaction. Having that usage visible at the OS level, not buried in a dashboard you check monthly, surfaces problems early.
If you're on an unlimited or enterprise plan and cost is irrelevant, CodexBar is a lighter value proposition — though the session-activity view can still help you understand model behaviour during development.
How does CodexBar compare to checking the provider dashboard?
The provider dashboards — OpenAI's platform.openai.com usage page and Anthropic's console — are the ground truth, and CodexBar is not a replacement for them. What it replaces is the habit of remembering to check. A dashboard requires intent; a menu bar item requires only peripheral vision.
The closest analogy in the Mac ecosystem is the way Lungo or Lungo-adjacent utilities handle a simple system state: they take something that would otherwise require opening System Settings and surface it as a one-click toggle. CodexBar does the same for AI usage data.
There's no direct head-to-head competitor doing exactly this on macOS yet. If you want broader system stats that happen to include network-level telemetry, something like Little Snitch or iStatistica might catch API calls indirectly — but they won't translate those calls into token counts or dollar estimates. CodexBar is purpose-built for AI spend awareness in a way nothing else on the platform currently is.
What are the best CodexBar alternatives?
Honestly, there isn't a direct equivalent for Mac right now. If CodexBar doesn't suit your workflow, the alternatives are: the native usage dashboards on each provider's site (accurate but passive), a custom Raycast extension that hits the OpenAI or Anthropic usage API on demand (flexible but requires setup), or a simple spreadsheet you update manually (the developer's rite of passage). For ambient system monitoring in general, Stats is the gold standard, but it has no AI-usage layer.
What are the system requirements for CodexBar?
CodexBar runs on macOS and is actively maintained for modern versions of the OS. Apple Silicon is supported. You'll need API credentials for whichever service you want to monitor — CodexBar reads your usage data via the provider's API, so the relevant keys need to be configured during setup.
