surp

the cheapest LLM API on the internet

Ask any AI model. We check the live marketplace, pick whoever is cheapest right now, and route your request there. Pay per request in USDC on Base — no account, no API key, no subscription.

models

text LLMs

cheapest

live cheapest models

how it works

You say "give me the best coding model." We fetch live prices from 150+ models on the Surplus Intelligence marketplace, find the cheapest one for your task, and send your request there. 1¢ per request. USDC on Base. That's it.

try it

This costs 1¢ of real USDC on Base. The response will be a payment challenge (402). To complete it, sign with your wallet and retry.

curl -X POST https://surp.ivc.lol/v1/chat/completions   -H "Content-Type: application/json"   -d '{"model":"surp/best-chat",
       "messages":[{"role":"user","content":"what is 2+2?"}],
       "max_tokens":50}'

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