Your real AI bill.
Every provider. Live.
Anthropic, OpenAI, OpenRouter, Gemini — your billed spend next to the estimate, in an always-on-top widget.
Free for 1 provider · Pro from €14.99 · no account, no telemetry.
The estimate lies. The bill doesn't.
Local token counting ignores what actually drives your bill: cache writes/reads priced differently, batch discounts, volume tiers, shifting prices. Over a busy month the gap climbs to double digits — in either direction.
AI Usage Monitor reads your billed spend from the official APIs and shows it next to the estimate. Real and estimated are never mixed in a single total.
$142 slipped under the radar — billed cache tokens and volume tiers the local count misses. That's a real bill, not an estimate within 2%.
Your entire AI budget, at a glance
A compact always-visible widget, a detailed dashboard, zero server setup.
Multi-provider
Anthropic, OpenAI, OpenRouter, Gemini in one place. Add a key, the total aggregates.
Real vs estimated
Billed spend and local estimate side by side, with the gap in $ and %.
Budget alerts
Get notified when real spend hits a monthly, daily or per-provider threshold.
History & projection
Day-by-day tracking, end-of-month projection, peak day — 100 % local.
Ready in 60 s
First-run wizard: paste a key, test the connection, you're live.
EN · FR · DE · ES
Translated interface, automatic system-language detection.
Connected providers
All data goes through official APIs — no scraping. Anthropic, OpenAI and OpenRouter are verified against live data; Gemini and Mistral are in beta (adapters being validated). DeepSeek is supported as a remaining-balance indicator. Gemini requires an advanced GCP setup (kept out of the install flow).
What is your Claude plan worth, at public API rates?
Estimate what your local Claude Code usage would cost at the public API rate — per model, with your ratio vs the plan price. It's not a bill, and never a quota percentage.
Estimated at the public API rate — not a bill. Local Claude Code usage only (web interface not visible). Rate 1 EUR = 1.08 USD, editable.
- →Per model, every token valued at the dated public rate — opus, sonnet, haiku broken out.
- →Verifiable ratio: amount paid, conversion and division are all shown. No opaque number.
- →5 h sliding window in tokens and equivalent value — never a quota percentage.
- →Editable, dated price grid, optional EUR→USD rate.
We run no server of our own
No telemetry, no analytics, no install counter. Your keys are OS-encrypted (DPAPI) and never leave your machine in clear text.
The APIs you configure
Only to read your own usage: api.anthropic.com, api.openai.com, openrouter.ai, googleapis.com.
Updates
Checks and downloads new versions from GitHub releases. Nothing else.
License
Activation / validation of the Pro key via the public license API. Payment happens in your browser.
Free to start. Pro when you want to see it all.
- 1 tracked provider
- Full widget + dashboard
- Real vs estimated
- 7-day history
- ✕ Budget alerts (Pro)
- ✕ Unlimited providers (Pro)
- ✕ Subscription value (Pro)
- Unlimited providers
- Budget alerts (monthly / daily / provider)
- Subscription value (public API rate, ratio)
- Unlimited history & projection
- Updates included
- 14-day refund
Frequently asked
How do you read my "real" spend?
Through each provider's official billing/usage APIs (Anthropic Admin API, OpenAI Organization costs, OpenRouter Activity, Gemini BigQuery billing). It's the billed amount, not an estimate.
Are my API keys safe?
Yes. They're OS-encrypted (Windows DPAPI via Electron safeStorage) before touching disk, never logged, and only sent to their own provider's API.
Is there a subscription?
No. Pro is a one-time purchase (€14.99) with 2 activations and updates included. Free stays free indefinitely.
Does Windows warn on launch?
Early builds aren't signed with an OV certificate yet, so SmartScreen may show "unknown publisher". The installer scans 0 detections on VirusTotal; click "More info → Run anyway".
What about macOS / Linux?
Windows ships first; macOS and Linux are under consideration.
Stop estimating. Look at the bill.
Download AI Usage Monitor and connect your first provider in under a minute.
Windows first · macOS under consideration