Built On
Arc
NanoAPI Gateway LogoNanoAPIGateway

Pay Sub-Cent
For AI APIs

NanoAPI Gateway leverages the x402 protocol to enable true pay-per-use APIs. Connect to access premium AI endpoints starting at just$0.001 USDC per call.

Gateway Authentication

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USDC Settlement Logo

// USDC Settlement

> Transactions are settled instantly using Circle's USDC token directly on the Arc blockchain mainnet with ~$0.000001 gas._

x402 Protocol Logo

// x402 Protocol

> Native HTTP response code 402 integration for autonomous multi-agent economies and automated pay-per-use systems._

Unified Gateway Balance Logo

// Unified Gateway Balance

> Aggregate multi-chain USDC into a single Circle Gateway unified balance. Power gasless, sub-cent AI and API micropayments with zero friction._