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OpenLimiter Pro adds extra accounts, hosted history, phone push and email alerts, cloud API spend metering and the Ember theme preset. Desktop alerts stay free.
Account

Track usage across all your LLMs. Real time. Desktop, mobile, and terminal.

Read your AI subscription quota locally. Give agents bounded budget state and advice. Open source, local first, cross platform.

Open the web appInstall on iPhoneInstall on Android

Usage, tools and settings in one window

The desktop has three tabs: Usage for the bars, Connect Tools for provider setup and Settings for the choices around the app. The hover panel keeps limits and agents close when the window is away.

The OpenLimiter desktop Usage tab window with synthetic bars for Codex, Claude Code and OpenRouter.

The real Usage tab window, drawn with sample data. No personal account, credential or real usage figure appears in it.

Demo data

Keep working. See when an agent needs you.

The edge tab and terminal show local readings. Pair your phone from the desktop to see its bars on the home screen.

What it reads, where it lands

No testimonials, no avatar wall, no user count. Every card below either ships a connector in this release or says plainly that it does not have one yet, so the wall itself is a status report. Connecting a provider normally happens in the desktop application; the surfaces below are the developer paths, under Advanced, for anyone who wants them directly.

Claude

Reads what Claude Code hands your statusline. A direct request to Anthropic with your own login is off until you turn it on.

OpenRouter

Reads the credits report OpenRouter documents, after you sign in with OAuth from the hub or add a key you already hold.

Codex

Reads usage through the documented Codex app server, with the login Codex already stored, and shows no number rather than a wrong one if that changes.

Antigravity

Reads quota from the documented Antigravity CLI status line. It reads no credential and makes no network request.

OpenCode

Reads OpenCode usage through its experimental adapter and clearly marks the version and setup it requires.

Grok Build

Reads the billing windows the installed Grok session shows, and shows no number rather than a wrong one when Grok changes them.

Gemini CLI

Reads Gemini CLI usage from local session data and reports the provider window when it is available.

Kimi

Reads the usage windows the installed Kimi session shows, and shows no number rather than a wrong one when Kimi changes them.

Claude Code statusline

Reads the provider statusline locally and shows its current quota window without sending credentials.

Claude Code prompt hook

A bounded hook can capture prompt events as untrusted data, with no provider action when the source is unknown.

Any shell

Runs shell commands as the source of truth, with explicit permissions, bounded output, and no hidden network access.

Any tool that can write a file

Writes a local snapshot for your own tools, using explicit paths and no hidden provider request.

Continuous integration

Export the cache as JSON and assert on it in a pipeline. Every release is tested on Windows and Linux on every push.

Your own front end

The cache is a plain document on your disk with a versioned schema. Read it and build whatever view you want.

Works with your tools

One meter over every subscription you already hold. Connect a provider from the desktop application, or use manual entry or ingest under Advanced. Local mode has zero telemetry and no account. Pro sends only selected bounded quota snapshots to the hosted service after you sign in.

Ships today

Eight connectors ship in this release

Claude CodeWorks today
OpenAI CodexWorks today
Google AntigravityWorks today
Gemini CLIWorks, may break when the tool updates
Grok BuildWorks, may break when the tool updates
KimiWorks, may break when the tool updates
OpenCodeWorks, may break when the tool updates
OpenRouterWorks today

Claude Code, Codex, Antigravity and OpenRouter are read through interfaces their makers document. Gemini CLI, Grok, Kimi and OpenCode are read through interfaces their makers do not document, as is the direct Claude request, which is off until you turn it on, so an update on their side can stop a bar until OpenLimiter catches up, and it then shows no number rather than a wrong one. Every connector and its real state.

Product names, logos, brands, and other trademarks featured or referred to within OpenLimiter are the property of their respective trademark holders. These trademark holders are not affiliated with OpenLimiter, our products, or our website. They do not sponsor or endorse OpenLimiter. Use of them does not imply any affiliation with or endorsement by them.

One small tab. Your limits and agents on hover.

OpenLimiter keeps one small tab with its logo on the left edge of your screen, about 70% of the way down. Hover it to open a panel beside it with your limits and your agents. It works the same on Windows and Linux X11; on Linux Wayland the tray takes its place, and macOS is a preview. Local meters and desktop alerts are free, with one active account per provider.

The real OpenLimiter edge tab, a small tab with the OpenLimiter logo and a yellow dot, on the left edge of a desktop with a mountain lake wallpaper.

The tab rests on the left edge. A small dot appears when something needs a look, like an agent waiting for you.

Demo data
The real OpenLimiter panel open beside the edge tab, with synthetic data: Claude Code needs you and offers Show app, Codex is busy and Gemini CLI is done, then limits for Codex and Claude Code with bars and reset times, an OpenRouter account balance, and an Open app link.

Hover it and the panel opens: agents first, with Show app for the one that needs you, then limits, tightest first, with reset times.

Demo data

Three desktop tabs. One hover panel when you step away.

Usage, Connect Tools and Settings keep the desktop clear. The hover panel puts limits and agent activity beside you when the main window is out of reach.

OpenLimiter desktop Usage tab with synthetic bars for Codex, Claude Code and OpenRouter.

Usage shows the bars for Codex, Claude Code and OpenRouter.

Demo data
  • Connect Tools shows provider setup and connection status.
  • Settings shows the choices that shape the desktop.

Your limits beside your prompt.

The terminal status line shows usage, reset times and freshness for supported hosts. Green, yellow, orange and red bands make a filling window easy to spot. Percentages and labels keep the meaning clear without relying on colour.

openlimiter statusline

5h [███░░░░░░░] 37% ↻1h12m7d [█████░░░░░] 58% ↻2d5hfable7d [██████░░░░] 63% ↻4d19hcx 7d [████████░░] 82%! ↻5d8hag 5h [█████████░] ~91%!! ↻2h26mor bal $12.54oa $8.20an $3.10

This is the real CLI renderer with synthetic readings. Status line support depends on the host. See the CLI guide for setup.

Demo data

Pair from the desktop. Your bars on your home screen.

Pair your phone from the desktop, then open the web app from its home screen. It shows the latest readings from your computer, including when they were observed.

The paired OpenLimiter phone app showing every connected provider and its usage bars.

Usage

Demo data
The paired OpenLimiter phone app showing the Pro tab with its trial and paid features.

Pro

Demo data
The OpenLimiter phone app showing the iOS installation sheet in Safari.

Install

Demo data
The OpenLimiter phone app waiting for the desktop to approve pairing with a synthetic code.

Pair

Demo data

The phone follows its light or dark theme and keeps the last readings when it is offline. Your computer still collects new readings, and its provider credentials go only to their own provider.

Open the phone app

Real application screens with synthetic data. No personal account or usage data.

Both of those are written up in full: what an agent is told and every command it ships with.

FAQ

What actually leaves my machine?
In local mode, nothing leaves for OpenLimiter. Provider connections talk only to that provider through a fixed allowlist, and each local credential is sent only to the provider that issued it. When you sign in, selected bounded quota snapshots go to the hosted service so your own devices can see them. Pro adds history, phone push and email alerts, extra accounts and cloud API spend metering. An API key you explicitly enable for cloud metering is stored encrypted for that job and deleted when you turn it off or ask. Desktop alerts are free.
Is it safe to point at my tools?
OpenLimiter opens what your installed tools already store, read only, and never rewrites, repairs or migrates them. It keeps only bounded numbers and timestamps, and drops any text a provider sends before anything reaches your agent.
Can the prompt hook break my session?
No. The hook reads the local cache, makes no network request, injects nothing when every provider is unknown, and exits 0 whatever happens. The statusline behaves the same way: if input is absent or malformed it falls back to the cache and reports unknown.
Which providers work today?
The provider guide lists the available meters, setup steps and the real state of each integration. Quota readings and agent activity are separate capabilities: a provider that reports activity does not necessarily expose a quota.
Do I need an API key?
Not to start. The Claude path reads a payload Claude Code already hands your statusline, most connectors use the login their own tool already stored, and the manual path needs nothing at all. OpenRouter signs in with OAuth from the hub, or takes a key you already hold.
Does it route my requests for me?
No, and it is not going to. OpenLimiter provides advice. It does not route requests automatically, does not bypass a limit, and does not touch how your agent authenticates. The decision stays with you.
What happens when a connector breaks?
Interfaces their makers do not document can change without notice. When one does, that provider shows no number until OpenLimiter catches up, the other providers are unaffected, and nothing invents a number to fill the gap. A missing number never becomes zero.
Is there a desktop or phone app?
The desktop tray application ships for Windows and Linux, and macOS is a preview. Windows is unsigned, so it asks once: in SmartScreen, choose More info then Run anyway. The macOS preview is one universal disk image, ad hoc signed but not notarised, so you open it once through System Settings, Privacy and Security, Open Anyway, and a new version is a new download. On a phone, the web app opens in the browser and installs to a home screen, and the desktop application pairs a phone by QR code so it can read your quota. Native iOS and Android applications are not built, nothing is in a store, and there is no waiting list. The download page lists every platform with its real state.
Is it free?
Everything you can see is free and always will be, under Apache 2.0. The OpenLimiter account is free. Desktop alerts are free. Pro adds history, phone push and email alerts, extra accounts and cloud API spend metering. Sync carries usage percentages and the amount and currency of balance and API spend meters, never local provider credentials.
What is OpenLimiter Pro?
OpenLimiter Pro is $5 a month or $50 a year, with the first 30 days free and no card required. It adds more than one account per provider; ninety days of hosted history with a forecast; phone push and email alerts at 60, 80 and 90 percent and on reset; cloud API spend metering for keys you explicitly enable; and the Ember theme preset. Desktop alerts, local meters and account access remain free. A full refund is available on request within 14 days of any charge.
Do I get alerts when a window fills up?
Yes. Desktop alerts are free. Pro adds email and phone push alerts at 60, 80 and 90 percent of a window and again when that window resets. Those four moments are the product rather than a setting. A push payload never carries usage detail, so a locked screen never shows one.
Can I see my quota on my phone?
Yes. The desktop application shows a QR code that lives for two minutes, you scan it with the phone, and you approve the pairing back on the desktop. The phone then holds a read only token: it can never change the account or upload anything, and revoking that device from the desktop or from your account page ends its access at once. Phone access does not require Pro.
What does cloud API spend metering include?
Cloud API spend metering is a Pro beta for keys you explicitly enable. It reads the provider's own billing surface, so it needs an organisation admin or management key and a project key will not work. Moonshot is read as a balance rather than as spend, in three separate figures, and is never turned into a monthly total, a forecast or a budget alert.

Pricing

Local meters, desktop alerts and account access are free, with one active account per provider. Pro adds the hosted features and the theme preset listed below.

OpenLimiter

available

Freeforever, and in the licence

The local product and the account are free. Sync is on from the moment you sign in, because moving your own percentages between your own devices is what signing in is for.

  • Every supported provider
  • The desktop app, with its edge tab and hover panel
  • Agent activity: busy, waiting for you, or done
  • Desktop alerts at 60, 80 and 90 percent, and on reset
  • Bars in your terminal status line, and the full command line tool
  • Sync across your own devices, on from your first sign in
  • One active account per provider, and Pro raises that
  • No usage limit and no charge for the account. Everything you can see is free
Download free

Open source under Apache 2.0, so this cannot be taken away later. The licence is the promise.

OpenLimiter Pro

available

US$5a month

or US$50 a year

Everything that is free, plus:

  • More than one account per provider
  • Ninety days of hosted history, with a forecast
  • Phone push and email alerts. Desktop alerts stay free
  • Cloud API spend metering for the keys you enable
  • The Ember theme preset

Spend meters need an organisation admin key. Full refund within 14 days, cancel any time in the Stripe portal. Sold by Lucas Costa, payments by Stripe. Full conditions

Start your free 30 day Pro trial

After the trial, local meters, local alerts and free account access keep working. Free keeps one active account per provider.

OpenLimiter is an independent open source project for people who hold several AI coding subscriptions at once and would rather know which one still has room than find out the hard way, mid task.

It is built around three commitments that are easy to state and awkward to keep. If it saves you an afternoon, sponsorship is the best way to keep the connectors working as the shapes underneath them shift. Reporting a connector that broke is worth just as much.

It runs on your machine

Local mode has zero telemetry. The account is free. Provider connections talk only to that provider through a fixed allowlist, with credentials held by the operating system. Sync carries usage percentages and the amount and currency of balance and API spend meters, and it can be turned off.

It reports to nobody

The app reports to nobody. It sends no telemetry in any mode. This website counts page views without cookies, which is a count of pages rather than a profile of you. Pro is optional and receives selected bounded quota snapshots after sign in. An API key is received only when you explicitly enable cloud metering, and only for that metering job.

Unknown stays unknown

A missing number never becomes a confident one. When a tool changes what it reports, that provider shows no number rather than a guess.

Lucas Costa

Author and maintainer. lucas@lucaswebsystems.com

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