An OpenAI-compatible inference gateway for agents. No signup, no subscription, no card. Pay per call with x402, or fund a prepaid key and use any OpenAI SDK.
Send a request, get a 402 with the price, sign it, get your answer. Settled on Arc in seconds. Unused budget is refunded.
Deposit USDC once and get an API key. Calls are charged the exact token cost. Close the key and the rest goes back to your wallet.
Identical deterministic requests are served from cache at a 50% discount. Agent traffic repeats a lot.
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