How SellerAI connects you to Instant Checkout

A short, practical view of agentic commerce, ACP, product feeds, and checkout.

The old path

Search query

Click around sites

Cart

Checkout

The new path

In agentic commerce, the buyer talks to an assistant like ChatGPT instead:

I need a carry-on backpack under $80

Find me a moisturizer under $50

The assistant finds options, explains the differences, and helps complete the purchase without sending the user out of the chat.

This is not “your brand’s bot”

Conversational commerce is when a brand has its own bot on its own surface.

Agentic commerce is buyer-first: the assistant belongs to the user and works in their interest.

It decides which brands to surface and which stores to route orders to. To even show up here, you need to speak the protocol’s language — ACP.

The language that connects assistants and marketplaces

ACP is an open standard that defines how an assistant and a business exchange data through the whole purchase:

what fields are needed in a catalog;
how checkout should behave;
what order statuses to send back;
and how to safely handle payment-related data.

Your catalog in ACP format

For the assistant, your store is not your website — it’s your product feed: a structured dataset following the Product Feed spec.

You add variants, availability, shipping constraints, media, and flags that say whether a product can be sold via Instant Checkout.

SellerAI builds and keeps this feed up to date for you, so the assistant sees an accurate storefront.

From intent to “order completed”

Once the user picks a product, the assistant drives checkout through the merchant’s ACP endpoints:

create a session;
update shipping and taxes;
confirm the order;
return statuses.

SellerAI implements this API according to ACP and keeps feed data, checkout responses, and your order system aligned.

Where we sit in the flow

We are MoR

Through SellerAI

You manage your catalog in our dashboard. We build the product feed and the ACP-based checkout API; Instant Checkout talks to our commerce layer.

The buyer pays SellerAI. We take our fee and send you payouts. You handle fulfillment.

You are MoR

Direct integration

You go through Instant Checkout onboarding as a merchant and receive payments directly.

SellerAI builds the Agentic Commerce layer for you: a ChatGPT-compatible product feed and an ACP-based checkout API, so your team doesn’t start from a blank page.

Payments continue to flow through your existing providers; we focus solely on the Agentic Commerce layer.

Enable AI checkout in minutes with SellerAI

Start with an import from your current store or marketplace, adjust how products appear in AI, then begin receiving and processing orders as programs go live. SellerAI keeps the protocol layer and data requirements up to date as specs change.

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Additional comments

Registration is free. We only charge commission once your store is live in AI assistants. No developers needed, no credit card required.