Why Open Protocols Matter When Machines Shop for You

In every tech wave, the first two to three years decide which architecture wins: open or closed. The web is open — that's why you can use any browser today, visit any website,…

In every tech wave, the first two to three years decide which architecture wins: open or closed. The web is open — that's why you can use any browser today, visit any website, pick any email provider. App stores are closed — that's why you pay commissions there that nobody negotiated. With AI agent commerce — shopping done by machines — we are exactly inside that two-to-three-year window. And the choice that consumers, merchants, and platforms make now defines what commerce looks like for the next decade. What "Open" Means for You as a Buyer "Open" is not a techie word. It has very practical consequences for you as a buyer: No Data Lock-In Open protocols mean: you don't have to tie yourself to a single agent provider to shop. Just like you don't need to be registered at Gmail to send an email to an Outlook address. Delivery runs on an open standard, independent of the client. The same applies to AI shopping: your shipping profile, payment method, purchase history should live with you — or at least be portable between agents. Not locked inside a single platform. No Fee Surge Closed platforms have the unpleasant property that they can change their fees unilaterally once they have market power. App store commissions of 30 percent are the textbook example. Ride-sharing platforms normalized prices over the years that were unimaginable at launch. Open protocols cannot do this. If a protocol is open, competition emerges: whoever becomes too expensive loses developers, merchants, and users to cheaper implementations. The price mechanism works — as long as the layer stays open. No Shutdown Risk Companies come and go. A company pivots, is acquired, goes bankrupt, closes product lines. With closed systems, your entire purchase flow disappears with it. Your saved preferences. Your history. Your settings. With open protocols, it doesn't. Email has been delivered for almost 40 years, no matter how many email providers came and went. The web displays pages no matter how many browsers took turns. That stability doesn't come from a single company — it comes from the protocol. What Closed Systems Promise Be fair: walled gardens have their strengths. They promise: Seamless: One login, one app, one payment flow. Once set up, everything runs. Simple: No decisions about standards, protocols, interoperability. All from one place: Support, billing, warranty — all through the same channel. These values are real. For …

Author

Holger von Ellerts

Published

2026-04-27

Topics

Agentic, Open Source