Agentic commerce in Europe: the 2026 state of play

For two years, agentic commerce in Europe was a slide in strategy decks. In 2026 it became infrastructure. This post summarises what is actually live, what the numbers say, and where the gaps are.

What is live

In July 2026, Visa announced live agent initiated transactions across Europe with more than 30 issuers, including Barclays, HSBC UK, BBVA, ING, Commerzbank, Nordea, Revolut and Klarna. Every transaction is authenticated with Visa Payment Passkeys, which ties an agent initiated payment to a verified user instruction and satisfies Europe's strong customer authentication rules. Mastercard moved earlier: in March 2026, Banco Santander and Mastercard executed the first live European transaction by an AI agent on real banking infrastructure, using tokenised agent credentials with predefined spending limits.

What the demand data says

Adobe Analytics reported that AI referred traffic to retail sites grew 393 percent year over year in the first quarter of 2026, and that AI referred visitors convert 42 percent more often than other visitors while generating 37 percent more revenue per visit. The buying still mostly happens by human hand after an AI recommendation, but the funnel has already moved into the assistants.

Where the gap is

The consumer card path is being handled by the networks. What Europe still lacks is the business side: accounts on which a company's agents can operate under policies, with approval workflows and an audit trail that satisfies accountants and, increasingly, the EU AI Act. That business layer exists in the United States, where Meow launched agent banking in April 2026. In Europe it is open territory, and it is exactly where Quaestrum builds: the control layer between a company's agents and its money, on licensed European rails.