Headroom answers the question every multi-plan AI subscriber asks mid-task: which of my accounts still has room to work? It puts the live limits, reset times, credits, and spend of Claude, Codex, Cursor, Copilot, Grok, Antigravity, and Vercel AI Gateway accounts on one self-hosted dashboard instead of seven provider pages. Connect each account once, through its official CLI sign-in or a credential import, and a background scheduler refreshes every figure on schedule, renews tokens before they expire, and keeps 90 days of readings. Five-hour sessions, weekly pools, per-model limits, credit balances, banked resets, and on-demand spend sit side by side, and unreported figures show as unknown rather than a fake zero. Compare ranks same-provider accounts by the room they have left and names the one to use next, while Timeline lays every reset window on a two-week calendar. Analytics charts when you work, when you run dry, and whether each plan fits, and Wallet totals subscriptions, usage spend, and top-ups in one currency with renewals and budget alerts. In-app notices, Telegram messages, and signed webhooks warn about low limits, expiring resets, and broken sign-ins, and optional automations can spend a banked Codex reset or log a credit top-up the moment it lands. Personal, work, and side-project accounts stay separate under one owner login with passkeys and a Privacy Mode that blurs emails on screen. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.