How do I govern billable calls from AI agents in a retail and e-commerce environment?

Route billable calls through Kastra. The Kastra proxy or SDK intercepts each request before it executes, evaluates ABAC policy against the request attributes, environment, principal identity, and risk signals, and returns an allow, deny, redact, or human-approval decision. Retail and e-commerce customers map controls directly to PCI DSS, GDPR, CCPA.