x402 Payment Enforcement Layer

The x402 layer operates at the protocol level to enforce economic access control for premium actions, including AI Agent interaction, extended messaging capacity, and gated file access. Payments are cryptographically verified prior to execution, ensuring deterministic resource allocation and eliminating free-rider compute abuse.

By coupling payment enforcement directly with session authorization, PRIV8 aligns computational cost with economic value while maintaining a stateless, privacy-preserving design.