SellerAI for larger merchants and platforms

You stay Merchant of Record. We are your Agentic Commerce layer on ACP

When you’re going into
Instant Checkout directly

This path is for teams that already have their own payment stack and engineering capacity:

You apply to ChatGPT Instant Checkout as a merchant

You want payments to run through your existing PSPs and accounts

You intend to remain Merchant of Record

You don’t want to burn time on building an ACP-compliant product feed and checkout API in-house

What we handle for you

Product feed

We map your existing catalog into a ChatGPT-compatible product feed and keep it in sync: attributes, pricing, availability, shipping constraints, media, eligibility flags.

Checkout API

We implement the endpoints the assistant uses for checkout: creating and updating checkout sessions, handling shipping and tax options, confirming orders, and returning statuses.

Data consistency

We align the feed, checkout responses, and your OMS so that ChatGPT doesn’t drop your products because the data doesn’t line up.

Observability

Logs of agent calls, orders, statuses, and edge cases: visible and traceable.

What you keep in your control

  • you go through Instant Checkout onboarding and manage participation;
  • you receive funds directly and remain Merchant of Record;
  • you control assortment, pricing, shipping options, and return policy;
  • you decide which markets and categories to enable.
SellerAI is the technical layer between your platform and ACP —
not another marketplace on top of you

Integration without a year-long saga

Step 1

Instant Checkout onboarding

You get into the program and receive the requirements

Step 2

Integrating with SellerAI

We connect to your catalog and order system via API or existing connectors

Step 3

ACP layer

We configure the product feed and checkout API to match your stack and the ACP spec

Step 4

Test and launch

We run through the key flows. After that, your catalog becomes available in agentic commerce

Step 1

Instant Checkout onboarding

You get into the program and receive the requirements

Step 2
Step 3
Step 4

Why “we’ll do it internally” often backfires

You can absolutely build this in-house
The hard part is maintaining an ACP-compliant feed and checkout API that keep up with spec changes and scale with traffic over time
SellerAI saves your team months of protocol deep-dives and gives you a stable foundation you can build on

Start selling through AI for free

Tell us a bit about you and your store.
We’ll get your catalog ready for ChatGPT Instant Checkout, no fees until you start getting orders.

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