Sell leftover OpenAI credits.
Prepaid OpenAI balance you will not burn can be listed. Surplus probes the key. You earn per request and receive batched USDC on Base.
API credits and ChatGPT subscriptions
Check the balance associated with your OpenAI API project before listing. A ChatGPT Plus or Pro subscription is not an API credit balance. Use a dedicated project key and confirm that the models you select are available to that project.
What this is
Connect an OpenAI API key (sk-…). Surplus probes it. tokensto.cash does not persist the key. You never SIWE with Surplus.
Autopilot pricing
Autopilot recognizes OpenAI as a prepaid provider and starts with a 0.05× minimum. You can raise the optional minimum if you want a smaller discount.
Questions
- Can I keep using the same key?
- Do not share a key you still need. Surplus holds it for the listing.
- Is ChatGPT Plus the same as an API key?
- No. This lists an API key. A ChatGPT subscription is not an API credit balance.
- Does listing refund my OpenAI balance?
- No. Buyers pay to use models through your API key, which consumes your available provider capacity. You earn USDC only when paid requests use your listing; listing does not convert the whole balance or guarantee a sale.
- Can I sell credits that are already exhausted?
- An empty balance cannot serve paid requests. Check the available API balance and selected model access before connecting a dedicated key. Replacing a key does not restore spent credits.