---
title: "Amex ACE, defined | Agent Ready Checkout"
description: "Amex ACE: American Express Agentic Commerce Experiences: a developer kit for agent registration, account enablement, intent."
canonical: https://agentreadycheckout.com/glossary/amex-ace
site: "Agent Ready Checkout"
last_updated: 2026-11-04
section: "Glossary"
---

# Amex ACE, defined | Agent Ready Checkout

> Amex ACE: American Express Agentic Commerce Experiences: a developer kit for agent registration, account enablement, intent.

Source: https://agentreadycheckout.com/glossary/amex-ace
Site: Agent Ready Checkout
Last reviewed: 2026-11-04

Glossary

# Amex ACE

In short

Amex ACE: American Express Agentic Commerce Experiences: a developer kit for agent registration, account enablement, intent, payment credentials and cart context. Amex ACE appears in 1 sourced facts on this site, the first in The history of agent payments, September 2025 to November 2026. Example: Three of the five specifications were available from 14 Apr 2026.

## Definition

American Express Agentic Commerce Experiences: a developer kit for agent registration, account enablement, intent, payment credentials and cart context.

## Example

Three of the five specifications were available from 14 Apr 2026. [americanexpress.com](https://www.americanexpress.com/en-us/company/agentic-commerce/), read 4 Nov 2026.

## Where it appears in the sourced facts

-   Amex ACE specifications for three of five services become available. [americanexpress.com](https://www.americanexpress.com/en-us/company/agentic-commerce/), read 4 Nov 2026. In [The history of agent payments, September 2025 to November 2026](https://agentreadycheckout.com/guides/history-september-2025-to-now).

## Nearby terms

-   [Agent Purchase Protection](https://agentreadycheckout.com/glossary/agent-purchase-protection)
-   [Verifiable Intent](https://agentreadycheckout.com/glossary/verifiable-intent)
-   [Know Your Agent (KYA)](https://agentreadycheckout.com/glossary/know-your-agent-kya)
-   [All terms](https://agentreadycheckout.com/glossary)

## Sources

1.  [Amex Agentic Commerce Experiences](https://www.americanexpress.com/en-us/company/agentic-commerce/), read 4 Nov 2026

Last reviewed 4 Nov 2026

## Edition

Matrix edition of 4 Nov 2026.

Reviewed 4 Nov 2026, [1 sources](#sources-h).

## Method

[How cells, sources and read dates are defined](https://agentreadycheckout.com/method)