Inside AMEX’s agentic commerce stack: How intent contracts and single-use tokens enforce AI transactions

Inside AMEX’s agentic commerce stack: How intent contracts and single-use tokens enforce AI transactions

Amex Unveils Agentic Commerce Stack with Intent Contracts and Single-Use Tokens

American Express (Amex) has been working on a system that enables AI agents to shop and pay on behalf of users within its own payment network. However, this system still involves a black box that could hinder trust and auditability. Amex's Agentic Commerce Experiences (ACE) developer kit, which allows for full transaction control in the payment layer, is a step towards addressing this issue.

Background & Context

Amex's foray into agentic commerce is part of its participation in protocol projects like Google's Agent Pay Protocol (AP2), which focuses on interoperability. The company believes that its closed-loop system, where it serves as both the card issuer and the payment network, is the missing piece in agentic commerce. Amex's EVP and global head of innovation, Luke Gebb, emphasized the importance of trust and security in advancing this space. Amex's unique position as a payment network with its own card issuance capabilities sets it apart from other financial institutions.

Impact on Swiss SMEs & Finance

The development of Amex's agentic commerce stack has implications for Swiss SMEs and the broader finance sector. As AI agents become more prevalent, businesses will need to adapt to new payment systems and ensure that they are secure and transparent. Swiss banks and financial institutions may need to reassess their involvement in agentic commerce and consider partnerships with companies like Amex that are pushing the boundaries of this technology. The introduction of intent contracts and single-use tokens may also lead to new opportunities for Swiss fintech companies to develop innovative payment solutions.

What to Watch

As Amex continues to develop its agentic commerce stack, it will be crucial to monitor the company's progress in addressing the black box issue and ensuring transparency in its validation process. The Swiss financial sector will also be watching how Amex's approach to agentic commerce influences the broader industry and whether other companies follow suit. The potential for new payment solutions and the impact on Swiss SMEs will be key areas of focus in the coming months.

Source

Original Article: Inside AMEX’s agentic commerce stack: How intent contracts and single-use tokens enforce AI transactions

Published: May 4, 2026

Disclaimer: This article is for informational purposes only and does not constitute financial advice. Consult a licensed financial advisor before making investment decisions.