I wasn't satisfied with any existing solution for tracking AI usage across providers.

Nothing could handle the mix of OAuth providers like Codex and Antigravity alongside cookie-based ones like Cursor and OpenCode Go. And none of them tracked non-AI providers like Tavily or Exa at all.

I wanted a single board where I could see every quota, every reset timer, and every usage bar across all my accounts at a glance. So I built Usagi.

It supports OAuth with auto-refresh tokens (Codex, Antigravity), session cookies (Cursor, OpenCode Go), and plain API keys (Tavily, Exa, Composio, Command Code). You add your accounts, and the board refreshes usage data automatically.

Supported providers

• Codex — OAuth (PKCE) with auto-refresh tokens; tracks 5-hour and weekly usage windows.
• Antigravity — Google OAuth (desktop flow) with auto-refresh; tracks Gemini and Claude & Other quota families, expandable per model.
• OpenCode Go — Session cookie authentication; auto-discovers workspaces and monitors 5-hour, weekly, and monthly windows.
• Cursor — Session cookie authentication (WorkosCursorSessionToken); tracks Pro plan usage, Auto + Composer quotas, and API limits.
• Command Code — Studio API key (user_…); tracks monthly plan credits alongside 5-hour and weekly limits.
• Tavily — API key authentication; tracks Researcher/Plan credits and key allowances.
• Exa — Team Management service key; monitors 3d, 7d, and 30d spend windows plus key budgets.
• Composio — Org API key (oak_…); monitors monthly tool-call quotas, Pro tool calls, and session limits.

I'll continue adding more providers over time as my workflow evolves and new tools make their way into my day-to-day stack.