Sell unused tokens from an agent.
If an agent run left prepaid or included capacity on a key, list it with the public skill. Pair once, then keep the provider key inside a hidden local prompt.
What this is
tokensto.cash publishes a standard agent skill with a bundled CLI. Browser sign-in creates a one-time pairing code; the CLI probes the key and lists one model per request.
What the agent must not do
Never SIWE with Surplus. Never put a provider key or pairing code in chat, arguments, logs, or files. The agent session cannot cash out, send, change settings, pause, delete, or relist.
Questions
- Is there an MCP server?
- No. There is a standard agent skill with a local CLI and a narrow listing API.
- Where is the skill?
- Install it directly from https://tokensto.cash. The readable source is at /skills/sell-unused-tokens/SKILL.md.