Canonical vocabulary · version 1.0.0

Accountable agentic commerce.

A source-bound vocabulary for systems in which agents can request resources, authorize payments, and produce economic consequences.

Owner: ARM AgencyReviewed: August 18, 2026Machine-readable: glossary.json
Definition boundary. x402 terms follow the x402 v2 specification. ARM-defined terms are operating definitions, not external standards. AiFi is a category label and does not imply affiliation with a similarly named entity.
ARM-defined

Accountable agentic commerce

Autonomous or semi-autonomous economic action governed by an explicit mandate, deterministic controls, inspectable execution, and reconciliation.

ARM-defined

AiFi

ARM's category label for governed AI-native financial operations across authority, budgets, wallets, payments, settlement, fulfillment, and reconciliation.

ARM-defined

Agent mandate

A documented delegation naming the principal, agent, permitted objective, resources, counterparties, limits, duration, escalation conditions, and revocation authority.

ARM-defined

Bounded autonomy

Delegated action constrained by explicit resources, counterparties, amounts, time, escalation rules, and revocation controls.

ARM-defined

Evidence contract

The required record connecting mandate and intent to policy decision, authorization, settlement, fulfillment, and exception outcome.

ARM operating term

Payment intent

The proposed economic action before authorization, including requester, resource, recipient, asset, amount, network, purpose, and expiry.

ARM operating term

Authorization

A deterministic decision that a payment intent is permitted under the active mandate and policy; it is not settlement.

Payments term

Settlement

The recorded completion or finalization of value transfer; it does not by itself prove correct resource fulfillment.

ARM operating term

Fulfillment

Delivery of the paid resource or service under the agreed request and acceptance conditions.

Payments operating term

Reconciliation

Matching mandate, intent, authorization, execution, settlement, fulfillment, and exceptions into a reviewable record.

x402 protocol term

x402 client

The application or agent that requests a paid resource and supplies a payment payload meeting an accepted requirement.

x402 protocol term

x402 resource server

The service that describes a protected resource, signals payment requirements, verifies payment, and returns the resource after successful handling.

x402 protocol term

x402 facilitator

A service exposing standardized verification and settlement operations for supported scheme and network combinations.

x402 protocol term

x402 payment requirements

The structured description of a resource and accepted payment choices, including scheme, network, amount, asset, recipient, and timeout.

x402 protocol term

x402 scheme

The logical method used to move value, implemented for a particular network and validated under scheme-specific rules.

ARM-defined

Escalation boundary

The condition at which an agent must stop autonomous action and transfer the decision to a named human or higher-authority control.