AI Agents Buy From Your Store
Built on Google's Universal Commerce Protocol spec. AI agents on Gemini, AI Mode in Search, and ChatGPT discover your products, browse, compare, and complete checkout with Google Pay -- without leaving the conversation.
Key specs
Google UCP Spec v2026-01-23Google Pay Pass-throughZero PCI Scope7 MCP Commerce Tools4 Platform AdaptersOrder Lifecycle SyncFrom search query to completed order
Four steps, fully automated. The AI agent handles the entire purchase flow.
Purchase Flow
AI-Driven Commerce Pipeline
AI Agent Query
"Find running shoes under $150"
Product Discovery
browse_products via MCP tools
Cart & Checkout
Google handles payment UI → encrypted token
Order Confirmed
Token forwarded to PSP → order lifecycle tracked
When an AI assistant like ChatGPT or Claude wants to help a user buy something, it discovers your commerce tools via MCP, browses your catalog, adds items to a KV-backed session cart, and completes checkout with a Google Pay token -- all without the user leaving their conversation.
Dual Protocol Access
- Compliant with Google UCP spec (v2026-01-23) at /.well-known/ucp
- MCP commerce tools auto-injected into existing MCP server
- Google handles payment UI -- encrypted token forwarded to your PSP
- Full order lifecycle: shipping, delivery, cancellations, refunds
- Automatic order sync to Google via webhooks
7 MCP Commerce Tools
browse_products — Paginated catalog with filters search_products — Keyword search get_product — Full product details + variants add_to_cart — Create or update cart session get_cart — Current cart contents + totals shipping_options — Available shipping for address checkout — Google Pay token → order
Works with your existing store
Four adapters cover every e-commerce setup. No migration required.
Shopify
FULL CHECKOUTConnects via Storefront GraphQL API (2024-10). Full product browsing, cart management, and native checkout URL generation.
- Storefront Access Token auth
- GraphQL product queries with variants
- Native Shopify checkout flow
- Automatic inventory sync
WooCommerce
FULL CHECKOUTUses the public Store API v1. Cart-Token session management with prices in minor units. No API keys needed for browsing.
- Store API (public, no auth for browse)
- Cart-Token header session tracking
- Automatic price unit conversion
- Full checkout with order creation
Google Merchant Center
FULL CHECKOUTPulls your product feed directly from Google Content API. Full checkout via Google Pay with payment tokens forwarded to your PSP.
- Google Content API v2.1 product feed
- Service account auth (no API keys to manage)
- Full checkout with Google Pay
- Order lifecycle sync to Google
Custom Sites
BROWSE + CARTA headless browser extracts products from any HTML page. AI-assisted CSS selector detection identifies checkout flows.
- Headless browser product extraction
- AI-assisted flow detection
- Edge-cached virtual cart
- Redirect to native checkout
Zero PCI scope by design
Wrenda never sees, stores, or processes payment credentials. Google Pay tokens pass through directly to your payment processor (Shopify Payments, Stripe, etc.). Your compliance posture stays unchanged.
- Payment Token Pass-through -- Google Pay encrypted tokens go straight to your PSP
- No Card Data Storage -- Wrenda never touches PAN, CVV, or cardholder data
- Session Isolation -- Domain-scoped KV keys prevent cross-tenant data leaks
- Rate Limiting -- Per-tool and global RPM limits prevent abuse
0
PCI scope items
30min
Session TTL
7
Commerce tools
4
Platform adapters
UCP Commerce FAQs
How AI agents browse and buy from your store via the Universal Checkout Protocol.
UCP is an open spec from Google for AI agents to discover products, manage carts and complete checkout on third-party stores. Where MCP is a generic tool-calling protocol, UCP is a commerce-specific extension with shipping, tax, refund and order-status flows built in. AI agents (Gemini, ChatGPT, Claude) speak UCP to your store via the API Wrenda exposes.
When the AI agent reaches checkout, the user authenticates with Google Pay in their own UI. Google returns an encrypted payment token to the agent, which forwards it to Wrenda. We never see card numbers — we just relay the token to your PSP (Stripe, Adyen, Braintree) which decrypts and processes it. Your existing PCI scope is unchanged.
Out-of-the-box adapters for Shopify, WooCommerce, Google Merchant Center and a generic browser-driven adapter for any store. Each adapter implements the UCP operations (browse, search, get-product, cart-add, cart-update, shipping-options, checkout, order-status, refund) by translating to the underlying platform's API.
They display product info, reviews and your brand name in the conversation. The user explicitly chooses to buy from you (vs a competitor surfaced alongside). And every UCP transaction logs back to your dashboard with the agent name, conversation context and product details — analytics you don't get from organic AI search referrals.
UCP includes a status webhook flow: order-confirmed, order-shipped, order-delivered, order-cancelled, order-refunded. Wrenda forwards these from your platform to the originating AI agent so the user can ask "where is my order?" and the agent answers from real data. Refunds initiated by the agent flow through the same path.
UCP Commerce is on the Enterprise plan ($1,999/mo). It includes 2M uncached requests, full UCP + Google Pay support, 100 domains, dedicated support and SLA. Lower tiers can use MCP tools (Professional plan) without commerce checkout.
Get Started
Let AI agents sell for you
Enable UCP in your dashboard. Connect your store. AI agents start buying in minutes.
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