Circle on Wednesday rolled out Nanopayments on mainnet, offering a gas-free USDC payment rail designed to power AI agents, APIs, and machine-driven commerce.
According to a blog post from the stablecoin issuer, the product enables USDC transfers as small as $0.000001 with instant verification, settling across Arbitrum, Avalanche, Base, Ethereum, HyperEVM, Optimism, Polygon PoS, Sei, Sonic, Unichain, and World Chain.
Built on top of Circle Gateway, the firm's unified liquidity layer, Nanopayments lets users deposit USDC into a non-custodial smart contract and authorize transfers via EIP-3009 signatures. The system verifies and deducts each payment before batching transactions for onchain settlement, allowing merchants to deliver goods or services within hundreds of milliseconds of authorization rather than waiting for block confirmation.
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