An AI shopping agent can now get a full, accurate price quote for a WooCommerce cart — line prices, tax, coupon discount and a shipping estimate — before it ever sends the buyer to your checkout, and it happens entirely on your own site with no Stripe integration and no card data touching anything but your store. GOMAX ULTIMATE 5.38.0 adds the "quote" step of agentic commerce, the piece that lets ChatGPT, Gemini or Perplexity tell a shopper exactly what they'll pay before they click buy.
Discovery and a pre-filled checkout link were already there. The missing link was the number in the middle: a quote. Without it, an agent can find your product and hand the buyer a checkout URL, but it can't answer "so what's my total, with tax and shipping to my address, if I use code SAVE10?" Now it can.
Key takeaways
- create_quote prices a cart the way checkout will: per-line price and tax, coupon discount, a shipping estimate for the buyer's destination, and a totals breakdown — plus a ready, signed checkout URL.
- validate_coupon tells an agent whether a code is real, expired, over its usage limit, or below its minimum spend — and how much it actually saves.
- retrieve_shipping_options returns the shipping methods and costs available to a destination, read straight from your WooCommerce shipping zones.
- retrieve_product gives an agent deep detail — full description, every variation, attributes, gallery, dimensions, cross-sells — so it can answer buyer questions accurately.
- Every one of these is computed read-only: no cart is mutated, no order is created, nothing is charged. Payment always completes on your own checkout, and no card data ever passes through GOMAX. No Stripe required.
Why a quote is the piece that was missing
Agentic commerce standards (ACP/UCP) describe a simple flow: an agent discovers products, requests a quote, then the buyer pays. Most WordPress setups can do discovery (a product feed) and payment (the normal checkout), but nothing in between. So the agent is flying blind on price — it can't confirm the tax for the buyer's country, whether a coupon is valid, or what shipping will cost.
GOMAX ULTIMATE 5.38.0 fills that gap without asking you to adopt a payment-delegation platform. The quote is calculated from your live WooCommerce data — the same tax rules, the same coupons, the same shipping zones your checkout uses — so the number the agent shows the buyer matches what they'll see when they land on your store.
How the quote is calculated (safely)
The important design decision: nothing mutates your store's cart or session. On a live shop, a shopper could be checking out in one tab while an AI agent requests a quote in another. So the quote is built read-only:
- Line prices and tax come from WooCommerce's own price helpers, honoring each product's tax class.
- Coupons are validated against the real coupon object — type, amount, expiry, usage limit, minimum/maximum spend, and product/category restrictions — and the discount is computed against the qualifying lines.
- Shipping is read from the shipping zone that matches the buyer's destination, returning each method's cost where it's statically determinable (flat rate, free-shipping thresholds, local pickup). Methods whose cost depends on a live cart calculation are flagged so the agent knows the final figure is confirmed at checkout.
The result is a totals object — items_subtotal, discount, tax, shipping, total — plus a signed checkout_url that pre-fills the cart (and the coupon) when the buyer opens it. The buyer pays on your checkout, exactly as always.
What this means for a store owner
You get to appear inside AI shopping experiences as a store that can actually be shopped — not just listed. When a buyer asks an assistant "add two of these and tell me the total to Poland with free shipping," the agent has a real endpoint to answer with. And because it's all self-hosted and pay-once, you're not renting that capability from a marketplace or handing your catalog and customers to a third party.
Frequently asked questions
Do I need Stripe or a payment platform for this?
No. The quote and everything around it are read-only and payment-agnostic. The buyer pays on your normal WooCommerce checkout. Programmatic payment delegation (where an agent pays for the buyer) is a separate, emerging standard you can add later — it is not required for AI agents to discover, quote, and send buyers to your store.
Is the quoted total exactly what the buyer pays?
It's an accurate estimate built from your live tax rules, coupons and shipping zones. Taxes and shipping are always finally confirmed on the checkout — the quote flags any shipping method whose cost is only resolved there — so the buyer never sees a surprise.
Does requesting a quote change my store's cart or create an order?
No. Quotes, coupon checks, shipping options and product lookups are all computed without touching the cart or session and without creating an order. Nothing is charged until the buyer completes checkout.
Which AI agents can use it?
Any agent that can call a public REST endpoint — ChatGPT shopping, Gemini, Perplexity, AI browsers. The quote and product routes are public but protected by GOMAX's Agent Passport, so you keep policy control (allow, rate-limit or block) over who calls them.
Where does the data go?
Nowhere but your own site. GOMAX ULTIMATE is privacy-first and self-hosted — the quote is computed on your WordPress install and no card data or customer data is sent to GOMAX or any vendor cloud.
Top comments (0)