x402 Policy Enforcement: How to Add Spending Limits to HTTP 402 Payments
Set per-endpoint spending limits, recipient allowlists, and rate controls on x402 payments — without giving up your private keys. Here's how it works.
x402 feature announcement
Securing the X402 Protocol: Why Autonomous Agent Payments Need Spending Controls
Deep dive into X402 protocol security risks and why autonomous AI agents need policy enforcement to prevent wallet drainage and payment attacks.
x402 security