Your next storefront:
ChatGPT.
Hand us your products and ChatGPT becomes a new sales floor — from conversation to recommendation to checkout.
See It Live
This is a storefront inside AI.
Real screens from MERCATO, a demo store we built. Inside a ChatGPT conversation, customers browse, choose, and check out.
Products appear as the answer to a request
Specs, reviews, and variants
A browsable, filterable product list
Bundles built to a budget
Checkout completes in the conversation
* Screens are from our demo store MERCATO. Yours is built with your products and brand.
The New Storefront
A new storefront,
inside AI.
ChatGPT plugins (formerly Apps in ChatGPT) and Claude connectors both run on MCP, a shared standard that brings outside services into AI conversations.
01ChatGPT weekly active users
1B/ week
AI chat is where discovery starts now — at the “what should I buy?” stage, before search.
* Based on figures published by OpenAI
022026
Major retailers are already in
ZOZO launched in March and Yahoo! Shopping in May. Japan's largest retailers already have storefronts inside the conversation.
Apps in ChatGPT
03Zero clicks
In-chat checkout is wide open
Most early apps stop at recommendations. Completing the purchase inside the conversation is still nearly untouched.
How It Works
From product data to a storefront inside AI.
Hand over your product data, connect it, and sell inside the conversation.
01Hand over
Product data
products_202608.csv12.4 MB
| Product | Price | Stock |
|---|---|---|
 Linen Shirt | ¥8,800 | 120 |
 Easy Pants | ¥7,700 | 85 |
02Connect
MCP server
MCP server
- Schema normalization
- Search index
- Metadata optimization
AI assistants
ChatGPT
Connected
Claude
Connected
03Sell
Recommend and sell in chat
ChatGPT
Looking for an easy shirt for the weekend
Here are a few that should fit what you're after.
Linen Shirt100% linen · White¥8,800Your order is complete
Getting Started
All you do is hand over your product data.
Design, build, connect, and launch — we handle every step.
CSV, a product feed, or an API connection to your existing store — as-is is fine.
We design how AI searches your products and how they get shown.
We build the MCP server, connect it to ChatGPT and Claude, and verify that your products appear in real conversations.
Start with an unlisted launch. Applying for a public directory listing is available separately.
Timeline
Pricing
Flat ¥100,000 to get your products into AI.
¥100,000
One-time setup fee
The same price regardless of company size or SKU count.
Book a live demoAvailable to companies willing to be featured as a case study, logo included.
What the ¥100,000 covers
- Product data integration (CSV / API)We take your data as-is and handle cleanup and normalization.
- Catalog designWe design how AI searches your products and how they get shown.
- MCP server buildWe build and publish it as a catalog AI can read.
- ChatGPT & Claude connectionConnected as a plugin and as a connector — both.
Quoted separately
- Member linking for in-chat checkoutCompleting a purchase inside the conversation requires linking your member authentication (OAuth) and payment methods. Effort depends on your existing commerce stack, so we quote it separately — from around ¥100,000.
* For large-scale system integrations or unusual operational flows, please talk to us first.
FAQ
Frequently asked questions
The questions we hear most often before getting started.
For anything else, get in touch
Open Your AI Storefront
Opening a store inside ChatGPT?
Stella Storefront.
In a 30-minute online call, we open the working product and show you how your own products would appear in AI conversations.
* Setup is currently a flat ¥100,000, one-time. Available to companies willing to be featured as a case study.