DECISION LIBRARY

Compare the layers before choosing the architecture.

Focused, source-linked comparisons for teams designing autonomous payment controls.

CATEGORY CLARIFIER

AI-agent payment authority vs. direct-debit mandates

MandateShield protects delegated AI purchases. It is not SEPA mandate collection, direct-debit processing, electronic signature or bank-payment software.

Compare →CONTROL COMPARISON

AI payment authorization vs. fraud detection

Fraud tools ask whether a payment looks suspicious. Agent-authorization controls ask whether the person permitted this exact autonomous purchase.

Compare →PROTOCOL COMPARISON

AP2 vs. TAP vs. x402 for agent payments

AP2, Visa Trusted Agent Protocol and x402 solve different layers of agentic commerce. A payment boundary can normalize the facts needed for execution-time authority.

Compare →ARCHITECTURE DECISION

Build vs. buy AI payment guardrails

A homegrown rule can compare an amount. A production execution boundary must also normalize protocols, fail closed, stop replay and preserve explainable evidence.

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