Can AI agents find your store?
Commerce is shifting from browsers to AI agents. Gemini, Copilot, and ChatGPT now browse catalogs, compare prices, and complete purchases—all without a human click. Find out if your store speaks their language.
AI-powered checkout in action
Watch how AI agents discover products, negotiate checkout, and complete purchases—all without a human click.
The N × N integration bottleneck is real
Before UCP, every AI platform needed custom integration with every merchant. Want to sell through Gemini, Copilot, AND ChatGPT? That meant three separate integrations—and counting. UCP collapses this complexity into one.
One Protocol
A single integration connects you to Google AI Mode, Microsoft Copilot, ChatGPT, and every UCP-compliant agent—present and future.
Your Data, Your Customer
You remain Merchant of Record. Own the customer relationship, keep the data, control the business logic—UCP is infrastructure, not a marketplace.
Real-Time Negotiation
AI agents check inventory, negotiate shipping options, and process payments autonomously—or hand off to humans when needed.
How it Looks
From product discovery to order confirmation—the seamless UCP checkout experience.
What does it take to be UCP-ready?
Four technical requirements enable AI agents to discover, negotiate with, and transact on your store.
Discovery Manifest
Host a JSON manifest at /.well-known/ucp advertising your supported services, capabilities, versions, and payment handlers.
Checkout Endpoints
Implement the three-call loop: POST /checkout-sessions, PATCH to update, and POST /complete to finalize orders.
Security & Verification
Verify X-UCP-Signature headers on every request and validate AP2 mandates before processing payments.
Data Readiness
Provide real-time inventory, sub-50ms API responses, and structured product attributes that agents can query.
One protocol. Every AI surface.
Without a standard, each new AI assistant needs bespoke integrations with each merchant—an N×N bottleneck. UCP provides a shared commerce language that collapses this to N+N: merchants implement once; agents connect immediately.
- Discovery via /.well-known/ucp manifest
- Checkout as a state machine with human-in-the-loop
- Merchant remains Merchant of Record
Three steps to agentic checkout
UCP distils complex commerce into a deterministic loop that AI agents can execute autonomously—or hand off to humans when needed.
01
Create Session
Agent sends line items → merchant returns totals, requirements, payment options.
02
Update Session
Shipping, discounts, identity collected; totals recalculated in real time.
03
Complete Session
Payment token submitted → order confirmed. If blocked, user escalates via continue_url.
Where AI agents shop
UCP makes your store "shoppable" on every major AI surface. When a user asks Gemini to find running shoes, your products can appear—and the purchase can complete—without leaving the conversation.
Google AI Mode
Search results that convert directly
Microsoft Copilot
Embedded checkout in Office & Edge
ChatGPT
Instant Checkout for 200M+ users
Custom Agents
Any UCP-compliant AI assistant
User flow of Direct Offers pilot in AI Mode
Labeled "Sponsored deal."
Backed by industry leaders
Shoppers can chat with eligible retailers directly on Search
Real-time conversations between shoppers and retailers, powered by AI agents on Google Search.
How do I implement UCP?
Choose the path that fits your platform and technical resources.
Shopify
Agentic Storefronts
UCP is built-in for Shopify merchants. Enable Agentic Checkout via the Google & YouTube sales channel—no code required.
- Toggle participation per AI surface
- Automatic inventory sync
- Shopify Payments integration
Non-Shopify
Agentic Plan
Upload your catalog to Shopify Catalog and let Shopify syndicate to UCP-capable AI channels without replatforming.
- Catalog enrichment
- Multi-channel distribution
- Managed compliance
Advanced
UCP Proxy
Open-source, Go-based translation layer that lets any backend speak UCP. Ideal for WooCommerce, Wix, or custom stacks.
- REST + MCP transports
- Capability negotiation
- Configurable escalation rules
Custom
Headless Implementation
Build UCP endpoints directly into your commerce backend for full control over the checkout experience.
- Complete flexibility
- Embedded checkout support
- Custom payment handlers
Your data IS your storefront
In agentic commerce, AI agents never see your beautiful website. They see structured data, inventory feeds, and API responses. If your product attributes are vague or your inventory is stale, agents will skip you for merchants with better data hygiene.
Traditional SEO evolves into Agent Search Optimization (ASO) and Answer Engine Optimization (AEO). Success now depends on structured data, real-time feeds, and UCP manifests—the signals AI agents rely on for ranking and selection.
"If an agent cannot deterministically verify stock or shipping costs via UCP, it will not recommend the product."
Key metrics for agentic commerce
Agent Discovery RateADR
How often agents surface your products. Track via server logs for known agent headers.
Protocol Conversion RatePCR
Agent-initiated sessions → completed orders. Measure the full API funnel.
Accuracy ScoreTrust
Mismatch rate between quoted vs final price/availability. High accuracy avoids deprioritization.
Agent Latency< 50ms
Response time for agent endpoints. Sub-50ms is gold; >200ms harms selection likelihood.
Shopify merchants will be able to sell in Google AI Mode
Tobi Lütke announces Shopify's partnership with Google to enable agentic commerce through UCP.
Frequently asked questions
Everything you need to know about UCP and agentic commerce.
General
Readiness & Implementation
Data & Performance
Ecosystem & Adoption
SEO & AEO
Ready to future-proof your store?
Whether you need help implementing UCP, optimizing for AI agents, or understanding your agentic readiness—our team is here to help.
Contact 8 West