Surp uses live SurplusIntelligence.ai market prices, picks a model for the route you choose, and reuses identical answers for $0.001. Connect once and pay in USDC on Base.
No wallet. No account. No API key. Start on Free. See which live model Surp would pick, then copy a prompt into your agent.
Read-only sample of what a request looks like — the route picker below picks the live model and price for this call.
Free = $0, daily cap · Value = smart + cheap · Frontier = best quality · Fast = lowest latency · Vision = images · Custom = tune weights
Set how much intelligence, speed, and discount matter. Cost here is Surplus % off the AA list price.
Free route. Treasury pays Surplus. You pay $0 within the daily cap.
Start with a free Surp key, then copy the ready-to-use prompt into your agent.
Use the key above with Surp's [OI]-compatible API. This is not a SurplusIntelligence.ai key.
Use Surp as my [OI]-compatible provider. Base URL: https://surp.ivc.lol/v1 API key: YOUR_SURP_KEY Model: surp/free Do not use https://api.surplusintelligence.ai/min30/v1/chat/completions Do not expect a SurplusIntelligence balance here. This key only works on this base URL.
Pick the path that matches how your agent already works. Funding details stay closed until you need them.
Pick a route: surp/free, surp/value, surp/frontier, surp/fast, surp/vision, or surp/custom.
Add USDC on Base to a wallet, or use a Surp API key. Pay in USDC on Base — this page does not sell crypto.
Send an OpenAI-compatible request to https://surp.ivc.lol/v1.
https://surp.ivc.lol/v1 — never on https://api.surplusintelligence.ai/min30/v1/chat/completions. Same marketplace, different router, different key. Your Surplus balance does not show here.hermes plugins install ivcained/surp-hermes-x402-llm, enable it, then use the free discovery and quote tools. Set the base URL to https://surp.ivc.lol/v1. Open the Hermes connection guide →https://surp.ivc.lol/v1/chat/completions. Open account and funding →Read about x402 settlement, cache fingerprints, route pools, benchmarks, model catalogs, and the gateway design when you need them. Intelligence scores: Artificial Analysis.
Read the documentation →