Defi

What Is x402? How AI Agents Pay With Crypto

Decrypt·November 4, 2026·1 min read

Coinbase's x402 protocol repurposes the HTTP 402 code to enable AI agents and apps to pay for APIs and data using stablecoins like USDC. This innovation integrates crypto payments into machine-to-machine transactions, potentially streamlining automated services and expanding stablecoin use cases beyond traditional finance.

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