What is Dual-Rail Agent Payments?
A payment architecture where AI agents can transact on both crypto rails (stablecoins via x402) and traditional fiat rails (cards via ACP/UCP), choosing the optimal path based on transaction type, cost, and compliance requirements.
WHY IT MATTERS
Some transactions are better on crypto rails (agent-to-agent, micropayments, programmable escrow). Others are better on fiat rails (merchant payments, recurring subscriptions, regulated transactions). Dual-rail agents choose the best path for each transaction.
Policy enforcement must work across both rails — the same spending limits and approval rules regardless of whether the agent pays in USDC or via card.
HOW POLICYLAYER USES THIS
PolicyLayer enforces policies across both crypto and fiat payment rails, providing a unified governance layer for dual-rail agent deployments.