The x402 protocol has revived the HTTP 402 status code from 1997, enabling AI agents to pay for API calls using USDC embedded in HTTP headers. AWS Bedrock has integrated x402, making it the first major cloud provider to embed crypto payment rails at the infrastructure level. On Polymarket, the USD.AI FDV above $300M one day after launch market has an anticipated move of up to 15%.

Market reaction

The x402 network reports 207 million transactions and $50 million in volume, driven by 480,000 agents and 100,000 services. The USD.AI market is thin, with 24-hour volume showing no activity. The expected 15% increase in odds reflects trader expectations around enterprise-level stablecoin adoption rather than current…