x402: HTTP-Native Agent Payments

x402 is an open protocol that activates the HTTP 402 "Payment Required" status code, enabling AI agents and applications to make instant, permissionless micropayments using stablecoins.

When to Use

• Implementing pay-per-use API endpoints
• Building AI agents that pay for services autonomously
• Creating micropayment flows for content or data access
• Accepting stablecoin payments without traditional payment infrastructure

Key Benefits