If you sell on Shopify or Etsy, you're already enrolled. Your products will appear in ChatGPT by default starting late March 2026. No application needed. No separate app to install.
Everyone else (WooCommerce, BigCommerce, custom platforms) needs to set up a product feed manually. Here's exactly how the system works, what your feed needs to include, and what the 4% fee means for your margins.
What Actually Happened with ChatGPT Checkout
Quick timeline, because this has changed fast:
- February 2026: OpenAI launched "Buy it in ChatGPT" with Instant Checkout for US-based ChatGPT Plus, Pro, and Free users.
- March 2026: OpenAI pivoted. Instant Checkout is moving to Apps (purchases happen inside connected services, not natively in ChatGPT). The company is now prioritizing product search and discovery inside ChatGPT.
- Late March 2026: Shopify's Agentic Storefronts go live for all stores by default. Purchases complete on the merchant's site, not inside ChatGPT.
The takeaway: ChatGPT is becoming a product discovery engine, not a payment processor. Buyers research in ChatGPT, then complete checkout on your site (either through an in-app browser on mobile or a separate tab on desktop).
That's still valuable. High-intent traffic from AI recommendations converts well. But don't expect a flood of in-chat purchases.
Step 1: Check Your Enrollment Status
Your setup process depends entirely on your platform.
| Platform | Auto-Enrolled? | Action Required |
|---|---|---|
| Shopify | Yes | Review settings in Shopify Admin. Opt out if desired. |
| Etsy | Yes | No action needed. Products indexed automatically. |
| WooCommerce | No | Submit merchant application at chatgpt.com/merchants |
| BigCommerce | No | Submit merchant application at chatgpt.com/merchants |
| Custom platform | No | Apply + implement ACP endpoints + product feed |
If you're on Shopify, your Agentic Storefront channel will launch by default. You can modify settings (or opt out) in your Shopify Admin under the Sales Channels section.
Step 2: Build Your Product Feed
Whether you're auto-enrolled or applying manually, your product data needs to meet ChatGPT's feed specifications. The quality of your feed directly affects whether ChatGPT recommends your products.
Accepted formats: CSV, TSV, XML, or JSON.
Update frequency: Feeds can refresh as often as every 15 minutes. You push the feed via encrypted HTTPS to an OpenAI-provided endpoint. There's no pull model (OpenAI doesn't crawl your site for product data).
Required Feed Fields
| Field | What to Include | Why It Matters |
|---|---|---|
| Title | Clear, descriptive product name | ChatGPT uses this for matching user queries |
| Description | Long-form, detailed product description | More detail = better AI understanding of fit |
| Price | Current price in USD (including sale price) | Price accuracy affects trust and ranking |
| Inventory/Availability | In stock, out of stock, preorder | Out-of-stock items get deprioritized |
| GTIN/Identifiers | UPC, EAN, ISBN, or MPN | Required for product matching and deduplication |
| Images | High-res product photos (multiple angles) | ChatGPT shows images in product cards |
| Shipping details | Rates, delivery time estimates, free shipping thresholds | Displayed to users during product comparison |
| Customer reviews | Rating + review count if available | Social proof in AI recommendations |
Side note on descriptions: ChatGPT doesn't just match keywords like Google. It understands context. A description that says "lightweight running shoe for trail running in wet conditions" will get matched to queries like "what shoes should I wear for muddy trail runs?" Write for understanding, not just keyword density.
Step 3: Enable Checkout (If You Want It)
This step is optional. You can be discoverable in ChatGPT without enabling checkout.
To enable checkout, you need to:
- Set
enable_checkout=trueandenable_search=truein your feed configuration - Implement ACP-compliant checkout endpoints
- Use a verified payment service provider (Stripe is the primary PSP)
- Handle the OpenAI 4% transaction fee on top of your normal payment processing fees
The Agentic Commerce Protocol (ACP) is the open standard OpenAI and Stripe co-built for AI commerce. It supports REST, Model Context Protocol (MCP), Agent Payments Protocol (AP2), and Agent-to-Agent (A2A) protocols.
For Shopify merchants, the ACP integration is handled automatically through Agentic Storefronts. You don't need to build custom endpoints.
Check if AI search engines already recommend your products
Before optimizing your product feed, see where you currently stand. Our AI Authority Checker tests your brand visibility across ChatGPT, Perplexity, and other AI platforms.
Open AI Authority Checker →Step 4: Optimize for Discovery (Not Just Indexing)
Getting into ChatGPT's product index is table stakes. Getting recommended is the goal. Here's what separates products that show up from products that get clicked:
Detailed, natural descriptions. ChatGPT reads your product descriptions the way a human would. "100% organic cotton t-shirt, pre-shrunk, 6.1 oz weight, available in 12 colors" performs better than "Premium quality cotton tee." Be specific.
Customer reviews. Products with reviews get recommended more often. If your feed includes review data (average rating + count), ChatGPT factors that into recommendations. No reviews = a disadvantage against products that have them.
Accurate inventory. Products that go out of stock but still show as available in the feed burn trust. Set up frequent feed refreshes (every 15 minutes if possible) to keep inventory status current.
Multiple images. ChatGPT displays product images in recommendation cards. More angles = higher click-through from the AI interface. Include lifestyle shots, not just product-on-white.
The 4% Fee: Is It Worth It?
Let's do the math. OpenAI charges a 4% fee on ChatGPT checkout sales, on top of your existing payment processing fees.
Say you sell a $50 product with a 40% gross margin. That's $20 in gross profit. The 4% OpenAI fee takes $2. Your payment processor (Stripe or Shopify Payments) takes another $1.75 or so. You're left with $16.25 in gross profit before ad spend, shipping, and other costs.
Compare that to your normal customer acquisition cost. If you're spending $15-$25 per acquisition on Facebook or Google Ads, a ChatGPT customer that costs you $2 in platform fees is a bargain. If your CAC is already low (organic traffic, repeat customers), the 4% feels steep.
My take: the 4% fee is fine as a discovery channel fee, similar to what you'd pay on a marketplace. But if you're on thin margins (under 25%), run the numbers carefully. That extra 4% might push individual orders into negative territory after all costs.
What Shopify Merchants Should Do Right Now
Your checklist for March 2026:
- Review your Agentic Storefront settings in Shopify Admin under Sales Channels. Make sure the products you want visible are eligible.
- Audit your product descriptions. ChatGPT uses them for matching. Thin descriptions = fewer recommendations.
- Add GTINs/UPCs to all products. This helps with product matching and deduplication across merchants.
- Check your review integration. If you use Judge.me, Loox, or another review app, confirm reviews are flowing into your structured data.
- Monitor the channel. Watch for ChatGPT-attributed traffic in your analytics. Early data will tell you whether this channel is worth optimizing further or ignoring.
What Non-Shopify Merchants Should Do
If you're on WooCommerce, BigCommerce, or a custom platform:
- Apply at chatgpt.com/merchants. The application requires your store URL, product catalog size, and payment processor information.
- Build your product feed. Start with JSON or CSV format. Include all required fields from the table above. Test with a small product set first.
- Set up feed hosting. Host the feed file at a stable HTTPS URL that OpenAI's systems can access. Implement 15-minute refresh cycles if your inventory changes frequently.
- Implement ACP endpoints if you want in-chat checkout. This requires developer resources. If you don't have a developer, start with discovery-only (no checkout) and add it later.
Frequently Asked Questions
Is my Shopify store already enrolled in ChatGPT shopping?
Yes. Shopify announced that all stores will appear inside ChatGPT by default in late March 2026 through Agentic Storefronts. You don't need to build a dedicated ChatGPT app. The channel launches automatically, and you can modify settings in your Shopify Admin.
What fee does OpenAI charge on ChatGPT checkout sales?
OpenAI charges a 4% fee on sales made through ChatGPT checkout, on top of your standard platform transaction fees. For a $50 sale, that's $2 to OpenAI plus your normal payment processing costs. Factor this into your margin calculations before opting in.
What product feed format does ChatGPT accept?
ChatGPT accepts CSV, TSV, XML, and JSON product feeds. Feeds can be refreshed as often as every 15 minutes. The feed is pushed via encrypted HTTPS to an OpenAI-provided endpoint. There's no pull/crawl model.
Do customers actually buy through ChatGPT?
As of March 2026, most purchases happen on the merchant's website, not inside ChatGPT. Buyers typically complete checkout in an in-app browser (mobile) or separate tab (desktop). ChatGPT is functioning primarily as a product discovery tool that sends high-intent traffic to your store.
Can WooCommerce stores use ChatGPT checkout?
Yes, but it requires manual setup. You'll need to submit a merchant application at chatgpt.com/merchants, configure your product feed in CSV/TSV/XML/JSON format, and implement the Agentic Commerce Protocol endpoints if you want checkout (not just discovery).