Skip to main content
FAQ

Questions, answered.

Buying, selling, routing and payments, in plain terms.

About Surplus

Surplus is an open marketplace for AI inference. Buyers call one OpenAI-compatible base URL and each request is sent to eligible seller capacity. Sellers connect supported provider endpoints, set prices and limits, and earn USDC when their offers serve completed requests.

Buyer setup and funding

Routing, providers and trust

Models and API compatibility

Sellers and offers

Provider onboarding

Organizations and roles

Failures, refunds and support

Still stuck?

The team and other builders answer questions in Discord.