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.

Compare →PROTOCOL COMPARISON

Machine Payments Protocol (MPP) vs. x402

MPP and x402 both use HTTP 402 for machine payments, but they differ in payment-method scope and integration semantics. Neither replaces delegated purchase authority.

Compare →CONTROL COMPARISON

AI payment authorization vs. virtual-card controls

Virtual cards constrain a payment credential. AI payment authorization proves whether the agent's exact final purchase remains inside delegated intent.

Compare →TRUST COMPARISON

AI-agent identity vs. payment authority

Agent identity answers who is acting. Payment authority answers whether that actor may execute this exact purchase now.

Compare →RUNTIME SECURITY COMPARISON

Payment policy check vs. execution integrity

A policy ALLOW says a proposed purchase fits the rules. Execution integrity binds that decision to one exact downstream request, a single-winner MandateShield claim and a checked terminal outcome.

Compare →HONEST ARCHITECTURE COMPARISON

Provider-native controls vs. MandateShield outcome verification

AWS, Crossmint, Mastercard, Stripe and AP2 already provide important agent-payment controls. MandateShield adds value only when its narrow caller-independent reconciliation and evidence boundary fills a remaining gap.

Compare →STACK COMPARISON

AI payment authorization vs. payment processing

Authorization policy decides whether an agent may attempt a purchase. Payment processing authorizes, captures and settles money on a payment rail.

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