Skill: sell unused tokens
Procedure for Claude, Codex, or Cursor: list leftover provider credits on tokensto.cash. Machine-readable copy: SKILL.md.
- Open https://tokensto.cash/start and sign in (Privy). Evidence: the connect-key screen.
- Pick the provider that owns the leftover credits. Use Other only for an OpenAI-compatible URL Surplus does not list.
- Paste the key. Never echo, log, commit, or store it. Surplus keeps it encrypted. tokensto.cash does not persist it.
- Wait for the probe. Client lists one model per request.
- Set cost basis (Included 0.02×, Leftover 0.05×, At cost 1.0×) and a daily cap ≥ $0.5.
- Submit. Evidence: `/sell` shows the listings.
Cash-out: Revolut, Monzo, Chime, Zelle direct. Venmo, Cash App, Wise, and PayPal after a one-time USDCtoFiat Verify registration (desktop Chrome). Users never SIWE with Surplus.