Payment networks advance agentic commerce infrastructure with tokenization and live proofs of concept

Executive Summary

• Card networks are building competing but parallel infrastructure for agentic commerce: Mastercard's Agent Pay (Agentic Tokens) and Visa's Intelligent Commerce framework both launched around the same period, both grounded in tokenization ^S2.
• A live proof of concept between Nuvei, Visa, Arvato Systems and fashion brand Kings and Priests demonstrated an AI agent completing a purchase and paying inside the agent flow, with no hand-off to a separate checkout, settled on live Visa rails with multiple European issuers participating ^S1.
• Industry commentary frames trust as the central unresolved problem: existing payments infrastructure and risk models assume a human is clicking "buy," which agentic flows break ^S3.
• Emerging interoperability protocols — Google's AP2 and OpenAI's ACP — use signed intents and mandates so an agent has a defined, bounded shopping mandate ^S3.
• Merchant-industry bodies characterize agentic commerce as moving from experimentation toward reality, while cautioning that most enterprise commerce infrastructure was not built for machine-driven transactions ^S4.

What Happened

Nuvei, in partnership with Visa, Arvato Systems and merchant Kings and Priests, ran a live agentic-commerce proof of concept in which a merchant's AI agent initiated a purchase on a shopper's behalf and completed payment inside the agent itself, without transferring the shopper to a separate payment flow. Multiple European issuers took part, and the transactions settled on live Visa rails ^S1.

Separately, Mastercard introduced Agent Pay, built on Mastercard Agentic Tokens, extending tokenization capabilities already used for mobile contactless and card-on-file payments. Visa introduced a parallel program, Intelligent Commerce, around the same period. Both are designed to let the payment ecosystem verify an agent's identity and confirm transaction legitimacy ^S2.

Industry discussion (Digital Transactions, March 2026 issue) highlights that card networks, processors and AI utilities are working to establish trust mechanisms for agentic commerce, and identifies two interoperability protocols — Google's AP2 and OpenAI's ACP — that use signed intents and mandates to define what an agent is authorized to do ^S3.

The Merchant Advisory Group's 2026 conference agenda describes agentic commerce as progressing from experimentation to reality, with AI agents already able to discover products, compare prices and evaluate shipping options, and expected soon to complete purchases autonomously. It flags that enterprise commerce infrastructure was not designed for machine-driven transactions ^S4.

Why It Matters

Agentic commerce changes who — or what — initiates and authorizes a payment. This has implications across the value chain: identity verification, fraud models, tokenization schemes, and merchant checkout design all currently assume a human actor ^S3. Live settlement on card network rails (Visa) with issuer participation shows this is moving beyond pilots into production-adjacent testing ^S1. Competing token frameworks from Mastercard and Visa signal networks are racing to own the infrastructure layer for agent-initiated payments ^S2.

Strategic Implications

Merchants

• Merchant AI agents can now initiate and settle purchases directly within the agent interface, collapsing the traditional checkout flow ^S1.
• Enterprise commerce infrastructure, built for human-driven transactions, will require re-architecture to support machine-driven flows ^S4.

Banks/Issuers

• Multiple European issuers have already participated in live agentic transaction settlement, indicating issuer-side readiness is being tested in production-like conditions ^S1.

PSPs

• Nuvei's role as infrastructure provider in the proof of concept positions PSPs as integrators between merchant agents and network rails ^S1.

Card Networks

• Mastercard (Agent Pay/Agentic Tokens) and Visa (Intelligent Commerce) are each building proprietary tokenization-based frameworks, suggesting a competitive land-grab for the agentic payments standard ^S2.
• Visa is also directly participating in agent-to-rail settlement pilots, extending its role beyond token issuance into live transaction infrastructure ^S1.

Fintechs

• Interoperability protocols (Google AP2, OpenAI ACP) are being developed outside the card networks, indicating fintech/AI-platform players are shaping agent authorization standards in parallel ^S3.

Competitive Impact

Visa appears advantaged in the near term: it is both running a live settlement pilot (via Nuvei/Arvato) and building a parallel token framework (Intelligent Commerce) ^S1S2. Mastercard is competing directly with its own tokenization program (Agent Pay) ^S2. This suggests the two dominant networks are positioning to each become the default trust layer for agentic transactions, which may fragment merchant integration effort until standards converge. Non-network protocol efforts (AP2, ACP) from AI platform providers could disintermediate networks if they establish independent trust/mandate standards, though the evidence does not indicate how these interact with network tokenization ^S3.

Technology Impact

• Tokenization is described as the foundational technology for agentic commerce, extending existing mobile contactless and card-on-file token models ^S2.
• Distinctions between acquirer tokens, merchant tokens and vendor tokens are relevant to how agent-initiated payments will be provisioned and who bears PCI compliance burden ^S2.
• Mastercard Agentic Tokens and Visa Intelligent Commerce are the two named network-level frameworks ^S2.
• Google's AP2 and OpenAI's ACP are named interoperability protocols using signed intents and mandates to scope agent authority ^S3.

Regulatory Impact

Insufficient evidence in the retrieved sources.

Opportunities

• PSPs and infrastructure providers (e.g., Nuvei) can position as integration layers connecting merchant agents to network rails, as demonstrated in the Visa/Arvato/Kings and Priests pilot ^S1.
• Tokenization providers have an opportunity to extend existing card-on-file/contactless token infrastructure into agentic use cases ^S2.
• Merchants engaging early with agent-led discovery and price/shipping comparison may gain visibility advantages as agentic shopping channels grow ^S4.

Risks

• Trust and fraud-model gaps: existing risk models assume human-initiated transactions, and this assumption does not hold for agentic flows ^S3.
• Fragmentation risk: competing token frameworks (Mastercard vs. Visa) and competing interoperability protocols (AP2 vs. ACP) could create integration complexity for merchants ^S2S3.
• Infrastructure readiness: most enterprise commerce infrastructure was not designed for machine-driven transactions, per merchant-industry assessment ^S4.
• Multi-processor and regional complexity is increasing alongside agentic shopping channels, raising operational risk for merchants managing multiple tools in isolation ^S4.

Outlook - What to Monitor Next

• Whether Visa's Intelligent Commerce and Mastercard's Agent Pay converge on shared standards or remain competing proprietary frameworks ^S2.
• Expansion of live agentic settlement pilots beyond the Nuvei/Visa/Arvato/Kings and Priests proof of concept to other merchants and issuers ^S1.
• Adoption trajectory of Google's AP2 and OpenAI's ACP protocols and whether they interoperate with network tokenization schemes ^S3.
• Merchant Advisory Group conference sessions (e.g., Accertify/Mastercard) for further detail on fraud prevention and issuance approaches for agentic infrastructure ^S4.
• Evidence of issuer-side scaling beyond the European issuers already participating in the Visa pilot ^S1.

Confidence Assessment

Source count: 4, all quality tier 4 (via Tavily aggregation), none are regulator or primary-network press releases republished directly — one is a vendor blog post (Nuvei) ^S1, one is a payments-technology vendor blog (Spreedly) ^S2, one is a trade-press PDF with named industry commentators ^S3, and one is a merchant association conference listing ^S4. No regulatory or standards-body primary sources are present. Overall confidence: Medium. The sources consistently corroborate an active, live-testing phase for agentic payments and naming of specific frameworks (Agent Pay, Intelligent Commerce, AP2, ACP), but depth is limited to secondary/trade coverage without primary network documentation or regulatory guidance.

Sources

^S1 Analyzing Checkout.com for agentic commerce models | Nuvei - nuvei.com - https://www.nuvei.com/posts/evaluating-payment-infrastructure-for-agentic-commerce-and-agent-led-checkout-models

^S2 How Does Payment Tokenization Work? - spreedly.com - https://www.spreedly.com/blog/how-does-payment-tokenization-work

^S3 [PDF] Digital Transactions March 2026 - digitaltransactions.net - https://www.digitaltransactions.net/wp-content/uploads/2026/09/DT_0926_FINAL.pdf

^S4 MAG Payments Conference 26 - Merchant Advisory Group - merchantadvisorygroup.org - https://www.merchantadvisorygroup.org/conferences/mag-payments-conference-26

*Generated automatically. All factual claims carry [S#] markers referring to the numbered sources above. Analytical judgements are the model's interpretation and are not sourced.*