AI MarketingVideo Blog3 min read

Your Next Customer May Send an AI Agent First

November 6, 2026By Sandbox Media

Your next customer may not show up in person. Their AI agent might arrive first, and it will want answers fast.

On October 6, 2026, Sierra announced the Personal Agent Protocol, an open standard for how personal AI agents sign in and identify themselves to businesses, and what those businesses let them do. Meta and Sierra are developing it, and the partners named in the announcement include Genesys, Instinct, Rocket, Shopify, Stripe and Walmart.

It's a draft. Nothing to rebuild. One move to make now: get your basic customer answers onto the page, in words.

Key takeaways

Sierra announced the Personal Agent Protocol on October 6, 2026, as an open standard built on OAuth.
An agent can start as a guest, which Sierra says may be enough to check product availability or ask about a returns policy; the customer decides whether the agent gets read-only or write access.
A business can work with personal agents through its website and APIs, or through an agent of its own.
Version 0.1 of the specification, a first draft, was published on October 9, 2026; v0.2 followed on October 24 and version 0.3 is in progress. Payments, push notifications and more detailed permissions are possible future additions.

What is the Personal Agent Protocol?

It is an open standard announced by Sierra for how personal AI agents sign in and identify themselves to businesses and what businesses allow them to do. Meta and Sierra are developing it with partners.

How does an AI agent access a business under it?

An agent can start as a guest, which Sierra says may be enough to check product availability or ask about a returns policy. Once a customer signs in, the customer decides whether the agent gets read-only or write access.

Is it a settled standard?

No. It is a draft. Version 0.1 was published on October 9, 2026, v0.2 on October 24, and version 0.3 is in progress (spec changelog). Sierra lists payments, push notifications and more detailed permissions as possible future additions, and the spec can still change.

Other efforts exist too, including Visa's Trusted Agent Protocol. It isn't a clean rivalry, though: the Personal Agent Protocol's Path to 1.0 page lists Visa among its design partners. Nobody has won.

What should a business do now?

Write down the five questions customers ask before buying, such as stock, price, lead time, returns and hours, and check that your website answers each one on the page, in words, not locked in a PDF, an image or a phone call.

You don't need to strip your site down for this. We covered why in The GEO Trap: Don't Strip Your Site for AI.

The protocol at a glance

Item	What Sierra describes
Spec status	Draft: v0.1 (Oct 9), v0.2 (Oct 24), 0.3 in progress
Guest access	May be enough to check product availability or ask about a returns policy
Signed-in access	The customer decides whether the agent has read-only or write access
How a business is reached	Through its existing website and APIs, or an agent of its own
Possible future additions	Payments, push notifications, more detailed permissions

Frequently asked questions

Who announced the Personal Agent Protocol? Sierra, on October 6, 2026, saying that Meta and Sierra are developing the standard with industry partners.

Which companies are named as partners? Sierra's announcement named Genesys, Instinct, Rocket, Shopify, Stripe and Walmart as industry partners alongside Meta; a later Sierra post also lists NiCE and 35 more design partners.

Do I need to change my website now? The standard is still a draft, so there is nothing to rebuild; the practical step is to make sure basic customer questions are answered on the page, in words.