Mastercard.
| Dimension | Traditional UX | Agentic Experience Design (AXD) |
|---|---|---|
| Primary material | Attention and affordance | Trust and delegation |
| User state | Present, navigating | Absent, delegating |
| Design output | Screens and interfaces | Outcomes and constraints |
| Temporal model | Session-based | Relationship-based |
| Success metric | Task completion | Trust calibration |
Verifiable intent is the cryptographically provable record of what a human principal instructed an AI agent to do. It creates an immutable audit trail linking agent actions to human instructions, enabling accountability in agentic systems. When an agent makes a purchase or signs a contract, verifiable intent proves that the action was authorised by a specific human with specific parameters.
In agentic commerce, agents act autonomously - but someone must be accountable for their actions. Verifiable intent provides the legal and technical foundation for this accountability. It answers the critical question: did the human actually authorise this transaction? Without verifiable intent, disputes in agentic commerce become unresolvable - there is no proof of what was delegated.
Verifiable intent is the cryptographically provable record of what a human principal instructed an AI agent to do. It creates an immutable audit trail linking agent actions to human instructions, enabling accountability in agentic systems. When an agent makes a purchase or signs a contract, verifiable intent proves that the action was authorised by a specific human with specific parameters.
In agentic commerce, agents act autonomously - but someone must be accountable for their actions. Verifiable intent provides the legal and technical foundation for this accountability. It answers the critical question: did the human actually authorise this transaction? Without verifiable intent, disputes in agentic commerce become unresolvable - there is no proof of what was delegated.
On March 5, 2026, Mastercard published a specification that may prove to be the most architecturally significant document in the history of The specification was co-developed with Google, aligned with Google's Agent Payments Protocol (AP2) and Universal Checkout Protocol (UCP), and designed to be protocol-agnostic. It was published as an open-source draft (v0.1) under the Apache 2.0 licence at Pablo Fourez, Mastercard's Chief Digital Officer, was more direct: "As autonomy increases, trust cannot be implied. It must be proven. And if something goes wrong, everyone needs facts, not guesswork." This is not marketing language. This is the language of This essay is a technical examination of the Verifiable Intent specification. It analyses the architecture, evaluates the design decisions, maps the specification against the AXD Institute's frameworks, and identifies both what Mastercard has achieved and what remains unaddressed. The claim of this essay is specific: Verifiable Intent is the most important contribution to At its core, Verifiable Intent defines a layered SD-JWT (Selective Disclosure JSON Web Token) credential format that creates a cryptographically verifiable chain binding three elements: identity (who authorised this), intent (what they authorised), and action (what the agent actually did). The specification's own abstract states it precisely: "Verifiable Intent (VI) defines a layered SD-JWT credential format that creates a cryptographically verifiable chain binding an AI agent's commercial actions to an end-user's explicitly stated purchase intent." This is not a payment protocol. It does not move money. It does not replace Mastercard Agent Pay, Stripe's x402, or Visa's Intelligent Commerce platform. It is a The architectural significance is in the separation. By decoupling the trust proof from the payment rail, Mastercard has created something that can work across protocols - not just Mastercard's own Agent Pay, but Google's AP2, Stripe's x402, and any fu