OpenAI and AWS published on August 13, 2026 a technical guide enabling AI agents to perform autonomous micropayments in USDC on Coinbase’s layer-2 network Base. The x402 protocol, which leverages HTTP status code 402 « Payment Required, » orchestrates the process: the agent receives a payment request, verifies application-defined spending rules, and generates a cryptographic proof to settle the transaction in approximately 2 seconds. AWS Bedrock AgentCore Payments natively supports x402 challenges, generating proofs and maintaining audit trails for every transaction. The OpenAI-AWS partnership creates a massive distribution channel for the x402 protocol, but raises concentration concerns with two tech giants controlling AI payment infrastructure.
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