aiusage

AI subscription usage in your terminal.

Install

chmod +x ./aiusage

Requires bash, curl, jq.

Usage

./aiusage                         # all available providers
./aiusage claude                  # Claude only
./aiusage cursor claude           # Cursor + Claude
./aiusage codex gemini copilot    # any subset, in the order you want

How it works

• Single self-contained bash script — no build step, no daemon, no framework.
• Reads local auth or quota state already present on your machine, then calls provider usage endpoints.
• Local sources include ~/.codex/auth.json, ~/.gemini/oauth_creds.json, Claude credentials, browser cookies for Cursor, and JetBrains quota files.
• If auth is missing, expired, or the upstream endpoint changed, that provider is shown as unavailable or returns an error line.

Provider notes

Provider	What it shows	Auth source
Claude	5h and Weekly usage bars, extra credit usage	claude login credentials
Codex	5h and Weekly usage bars	~/.codex/auth.json
Cursor	Monthly credit or request usage	Browser cookies or CURSOR_COOKIE
Gemini	Quota usage for Google OAuth / Code Assist	gemini login credentials
JetBrains	AI credit usage from local IDE quota state	AIAssistantQuotaManager2.xml
Copilot	Premium and Chat quota bars	COPILOT_GITHUB_TOKEN or copilot login

• Cursor session lookup is automatic from Firefox, Chrome, Arc, Brave, Edge, or Helium.
• Copilot plans with unlimited or org-managed quotas may show only the plan name instead of bars.
• Provider endpoints and response shapes can change over time.

Adding providers

1. Add a fetch_<provider>() function.
2. Register it in run_all_parallel() and the main argument parser.
3. Follow the checklist in TODO.md.

Testing

Tests live in tests/. Run ./tests/run_tests after every change.

• tests/unit/ — helpers and pure functions (calculations, rendering, formatting, caching, CLI args).
• tests/integration/ — fetch_* provider functions.

Warning

Security — treat this as a local utility with access to existing auth state.

• This script reads local auth files, local quota files, and in Cursor's case browser cookie stores. Run it only on machines you trust.
• On macOS, extracted Cursor and Copilot credentials are cached in the login Keychain. On Linux, they are cached in ~/.cache/aiusage/ with 0600 permissions.
• If you set CURSOR_COOKIE or COPILOT_GITHUB_TOKEN manually, avoid leaving them in shell history or dotfiles.
• Do not commit token files, copied cookies, or cache files.
• Because this is a plain Bash script, you can audit exactly what it reads and what URLs it calls before running it.

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_{Inspired by codexbar by @steipete.}