Agentic commerce protocol watch

The instructions in our audits name versions and programmes that belong to other companies. When one of those changes and nobody notices, you do exactly what the document said and the re-test still fails. So every value we rely on is written down here with the day a person last confirmed it, and the pages are re-read weekly.

We do not speak for any of these programmes. Each line records what a published page said on a stated day, with a link so you can check it yourself.

What we track

WhatValueConfirmed
instant checkoutUS2026-09-01
stripe catalog imports2026-08-26.preview2026-08-31
stripe merchant profiles2026-07-29.preview2026-08-31
stripe shared payment tokens2026-04-22.preview2026-08-31
stripe x4022026-05-27.preview2026-08-31
ucp version2026-04-082026-09-01

“Confirmed” is the day a person opened the linked page and read the value off it — not the day this page was built.

What changed

2026-09-02

The watch itself went in

Until now these values were pinned with a date and re-checked when somebody remembered. A weekly job now reads each source page and flags the ones that have moved. It is deliberately small: at most twelve requests a week, only the pages linked below, and it compares a fingerprint rather than copying anything. A page we cannot reach is recorded as unconfirmed, never as a change — somebody's server being down is not their specification moving.

2026-08-31

First full read of the published sources

Every value in the table below was read from its source page and dated on this day. Two things are worth stating plainly from that read. Completing a purchase inside ChatGPT is a separate programme and, on this date, open in the United States only — everywhere else, the honest outcome is being found, understood and shortlisted, which is most of the value and all of the work anyone can actually do for you. And the Stripe versions below are preview versions: they are expected to move, which is exactly why they are pinned rather than typed into a document.

What this page is not

It is not a forecast — every line is a fact about a published programme on a stated day, and we have no more idea than you do what any of them will do next. It is not a copy of anyone's documentation; the links go to the source. And none of it is about being placed or ranked anywhere. This is the plumbing that decides whether an assistant can read what you sell. Whether it then recommends you is a different question, and nobody sells the answer to it.