International issuing banks that completed live transactions include Alpha Bank, Barclays, Ceska Sporitelna, comdirect, Commerzbank, Cornèrcard, Bank of Cyprus, Deutsche Kreditbank, HSBC UK, ING, Klarna, Lloyds Banking Group, mBank, Nationwide Building Society, NatWest, Nexi Group, Nordea Bank, OP Cooperative, Piraeus Bank, PKO Bank Polski, Revolut, S-Payment, Swisscard, Tatra banka, Banca Transilvania, Vanquis Bank, and Viseca — over 30 European issuers in total . Worldline and ING also completed a separate live agent-driven transaction with Visa on the same date .

What the AI Agents Actually Did

In the live transactions, AI agents browsed products, selected items, and initiated purchases entirely within consumer-defined parameters — such as spending caps, approved merchant lists, and category restrictions — operating autonomously on behalf of the cardholder without direct human intervention during the purchase flow . Transactions spanned travel, retail, and e-commerce, with participating merchants including lastminute.com, Frasers, Cleverbridge, and BrickDepot .

This means a consumer could tell an AI shopping agent, "Find me a weekend break to Amsterdam under €400," and the agent would search, select, and pay for an appropriate package without the consumer navigating a single checkout page.

How Visa Secures Agent-Initiated Payments

Visa's security and compliance approach rests on three pillars, every one of which was used in the live transactions:

• Visa Payment Passkeys — Every live transaction was secured using passkeys, providing strong customer authentication that complies with European Strong Customer Authentication (SCA) regulatory requirements. Each transaction is "securely authorised and directly linked to a verified user and their explicit instruction" .
• Trusted Agent Protocol (TAP) and Agent Directory — These enable merchants to cryptographically distinguish verified AI agents from malicious bots, providing a consistent identity signal that integrates into existing risk and policy frameworks. Implementation is supported by Cloudflare and Akamai .
• Visa Intelligent Commerce portfolio — A comprehensive suite of APIs embedding payment credentials, spending controls, authentication, and fraud protections into automated buying flows, supported by Visa's global network of 4.8 billion credentials and over 300 billion annual transactions .

The Event and the Broader Competitive Picture

The announcement was made at the Visa Payments Forum in Paris, where Visa convened roughly 2,000 payment industry leaders . It is the latest move in a fast-moving race between Visa and Mastercard to define the infrastructure for agentic commerce.

• Mastercard launched its Agent Pay framework in April 2025, with all European issuers enabled at the network level by June 2026. Mastercard transactions use passkeys, agentic tokens, and an open-sourced Verifiable Intent standard. In June 2026, Mastercard introduced Agent Pay for Machines (AP4M) for autonomous micropayments . Mastercard and Santander completed Europe's first live end-to-end AI agent payment in March 2026 .
• Visa announced a strategic partnership with OpenAI in June 2026 to integrate Visa's payment capabilities into OpenAI experiences, positioning Visa as the payment rails for OpenAI's consumer and enterprise products .
• Both networks are racing to define trust and identity standards for agentic commerce. Visa emphasises its TAP framework and global issuer scale (30+ European banks live), while Mastercard stresses open standards and its Verifiable Intent protocol. Visa has also launched tools like Agent Score (merchant readiness evaluation) and an MCP Server for direct LLM-to-payment-API integration .

International issuing banks that completed live transactions include Alpha Bank, Barclays, Ceska Sporitelna, comdirect, Commerzbank, Cornèrcard, Bank of Cyprus, Deutsche Kreditbank, HSBC UK, ING, Klarna, Lloyds Banking Group, mBank, Nationwide Building Society, NatWest, Nexi Group, Nordea Bank, OP Cooperative, Piraeus Bank, PKO Bank Polski, Revolut, S-Payment, Swisscard, Tatra banka, Banca Transilvania, Vanquis Bank, and Viseca — over 30 European issuers in total . Worldline and ING also completed a separate live agent-driven transaction with Visa on the same date .

What the AI Agents Actually Did

In the live transactions, AI agents browsed products, selected items, and initiated purchases entirely within consumer-defined parameters — such as spending caps, approved merchant lists, and category restrictions — operating autonomously on behalf of the cardholder without direct human intervention during the purchase flow . Transactions spanned travel, retail, and e-commerce, with participating merchants including lastminute.com, Frasers, Cleverbridge, and BrickDepot .

This means a consumer could tell an AI shopping agent, "Find me a weekend break to Amsterdam under €400," and the agent would search, select, and pay for an appropriate package without the consumer navigating a single checkout page.

How Visa Secures Agent-Initiated Payments

Visa's security and compliance approach rests on three pillars, every one of which was used in the live transactions:

• Visa Payment Passkeys — Every live transaction was secured using passkeys, providing strong customer authentication that complies with European Strong Customer Authentication (SCA) regulatory requirements. Each transaction is "securely authorised and directly linked to a verified user and their explicit instruction" .
• Trusted Agent Protocol (TAP) and Agent Directory — These enable merchants to cryptographically distinguish verified AI agents from malicious bots, providing a consistent identity signal that integrates into existing risk and policy frameworks. Implementation is supported by Cloudflare and Akamai .
• Visa Intelligent Commerce portfolio — A comprehensive suite of APIs embedding payment credentials, spending controls, authentication, and fraud protections into automated buying flows, supported by Visa's global network of 4.8 billion credentials and over 300 billion annual transactions .

The Event and the Broader Competitive Picture

The announcement was made at the Visa Payments Forum in Paris, where Visa convened roughly 2,000 payment industry leaders . It is the latest move in a fast-moving race between Visa and Mastercard to define the infrastructure for agentic commerce.

• Mastercard launched its Agent Pay framework in April 2025, with all European issuers enabled at the network level by June 2026. Mastercard transactions use passkeys, agentic tokens, and an open-sourced Verifiable Intent standard. In June 2026, Mastercard introduced Agent Pay for Machines (AP4M) for autonomous micropayments . Mastercard and Santander completed Europe's first live end-to-end AI agent payment in March 2026 .
• Visa announced a strategic partnership with OpenAI in June 2026 to integrate Visa's payment capabilities into OpenAI experiences, positioning Visa as the payment rails for OpenAI's consumer and enterprise products .
• Both networks are racing to define trust and identity standards for agentic commerce. Visa emphasises its TAP framework and global issuer scale (30+ European banks live), while Mastercard stresses open standards and its Verifiable Intent protocol. Visa has also launched tools like Agent Score (merchant readiness evaluation) and an MCP Server for direct LLM-to-payment-API integration .