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Universal Commerce Protocol · tracking 2026-04-08

Bring UCP
to any commerce
platform.

UCP is the new open protocol for agentic commerce — co-developed by Google, Shopify, Etsy, Wayfair, Target and Walmart. UCPhub brings it to everything else: one spec-tracking core, a connector for your stack, and a fully working reference agent under one roof.

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UCP is co-developed by

§ 01

Commerce is going agentic.
Most stores can’t transact with agents.

UCP lets AI agents discover, compare and buy from your store. Without it, your catalog only exists as HTML humans can read — not as endpoints agents can safely check out against.

A

Most stores still offer

  • HTML product pages meant for humans
  • One-off marketplace feeds (XML / CSV)
  • Custom checkouts per sales channel
  • No machine-readable order contract
B

Which leaves

  • No safe way for agents to buy
  • Broken checkout when agents scrape
  • Orphaned orders from assistants
  • Lost visibility as shopping goes agentic
C

UCPhub fixes this

  • One UCP Core, kept to spec for you
  • A connector for your commerce platform
  • Business-side UCP endpoints, ready today
  • A reference platform-side agent included
Explore the platform →

§ Both sides

Both sides of the spec.
Under one roof.

UCP has a business side (the store being shopped) and a platform side (the AI agent doing the shopping). Most tools only do one. We ship both — so merchants have a place to sell, and agent builders have a real counterparty to build against.

business

For your store

The connector, the UCP endpoints, the dashboard. Everything your store needs to be discoverable and buyable by any UCP-compatible agent.

  • WooCommerce connector (more platforms in dev)
  • Product, offer, checkout & order endpoints
  • Overrides, observability, auth
  • Spec-tracked by us, not by you
Get started →
platform

For agent builders

A fully working UCP platform (the agent side) you can browse, compare and transact against. Use it to develop, test and demo your own agent — no scraping, no reverse-engineering.

  • Fully implemented UCP platform
  • Real product catalog to buy against
  • Discovery → checkout → order, end to end
  • Free, no account needed
Try the demo agent →

§ Architecture

Core + Connectors.
That’s the whole architecture.

One UCP Core, maintained by us and kept to spec as UCP evolves. One connector per commerce platform that plugs into it. Adding a new stack doesn’t mean a rewrite — it means a connector.

core

UCP Core

The protocol-side implementation. Checkout, identity, orders — kept up to the latest UCP spec so your integrations don’t drift.

  • Tracked to UCP 2026-04-08
  • Business + platform reference implementations
  • REST + JSON-RPC transports
  • Compatible with AP2, A2A, MCP
  • Versioned releases, migration notes, audit trail
connectors

Platform connectors

The platform-side implementation. One connector maps your commerce platform into UCP Core — cleanly, reversibly, per-platform.

  • WooCommerce — live (WordPress plugin)
  • Magento — in development
  • BigCommerce — in development
  • Headless / custom — on the roadmap
  • Shopify — native UCP, no connector needed
See the platform →

§ 02

How UCPhub works

Three steps, from your storefront to any UCP-compatible agent.

step 01

Install the connector

Plug UCPhub into your commerce platform. WooCommerce is a WordPress plugin that’s live today; more connectors are in active development. No re-platforming, no checkout changes.

WooCommercelive
Shopifynative UCP
Magentoin dev
BigCommercein dev
step 02

Normalize to UCP

Products, variants, offers, availability, checkout and order contracts get mapped into the Universal Commerce Protocol — automatically and on every change.

title→product.name
price_incl_tax→offer.price
stock_status→offer.availability
checkout_url→actions.checkout
order_status→orders.webhook
step 03

Go live for agents

Your store now speaks UCP. Any UCP-compatible agent — including our own reference agent at app.ucphub.ai/demo — can discover, compare and check out against your catalog. No per-channel exports.

ChatGPT
Gemini
Perplexity
Claude
UCPhub agent (demo)
Any UCP agent

§ 03

You decide
who shops your store.

UCPhub publishes the standard /.well-known/ucp endpoint for your store — plus an allowlist for the agents you actually want to transact with. You’re not exposed to every agent on the internet; only the ones you’ve said yes to.

yourstore.com/.well-known/ucp UCP · 2026-04-08 
GET /.well-known/ucp HTTP/1.1
Host: yourstore.com

200 OK
content-type: application/json

{
  "ucp": {
    "version": "2026-01-11",
    "capabilities": {
      "dev.ucp.shopping.checkout": [{
        "version": "2026-04-08",
        "spec":    "https://ucp.dev/2026-04-08/specification/checkout",
        "schema":  "https://ucp.dev/2026-04-08/schemas/shopping/checkout.json"
      }],
      "dev.ucp.shopping.order": [{
        "version": "2026-04-08",
        "spec":    "https://ucp.dev/2026-04-08/specification/order"
      }]
    },
    "payment_handlers": {
      "com.shopify.shop_pay": [{ "id": "shop_pay", "version": "2026-01-11" }],
      "com.google.pay":      [{ "id": "gpay",     "version": "2026-01-11" }]
    }
  }
}

// This is the real UCP discovery payload your store publishes
// once UCPhub is installed. Agents read it, and use it to talk UCP.

§ 04

What you get with UCPhub

Spec-tracking UCP Core

We own the implementation work. Your store tracks the spec as it evolves, so you never chase a moving target.

→ latest: 2026-04-08
→ versioned upgrades
→ open at ucp.dev

Connector framework

One core, a pluggable connector per platform. Adding a new commerce stack doesn’t mean a rewrite.

→ WooCommerce — live
→ Magento, BigCommerce — in dev
→ Headless — on the map

Business + Platform — both sides

UCP has a business side (the store) and a platform side (the agent). We ship both — so you can build against a real, working counterparty today.

→ connector for the business
→ reference agent at /demo
→ buy end-to-end right now

Override & extend coming soon

Remap fields, override taxonomies and enrich metadata per connector — without forking the protocol. Ships with the first non-Woo connector.

→ per-connector rules
→ field overrides
→ in development

Agent-aware checkout

Offers, shipping matrices, tax rules and return windows encoded for agents — so AI checks out cleanly against your real policies.

→ offer conditions
→ return windows
→ shipping & tax

Open standard, no walled garden

UCP is developed openly at ucp.dev by Google, Shopify, Etsy, Wayfair, Target and Walmart. UCPhub is an implementation, not a proprietary fork.

→ open protocol
→ no lock-in
→ REST + JSON-RPC

§ 05

Who UCPhub is for

Stay the business of record,
without replatforming.

Your storefront stays. Your checkout stays. UCPhub quietly adds the UCP layer agents need — so customers coming in through AI assistants can actually buy from you, not a competitor.

  • → Install the connector in under five minutes
  • → Zero theme or checkout changes
  • → Keep selling to humans. Start selling to agents.
storefront
UCP layer · auto
agent checkout

One integration. Every client.
One layer you control.

Stop stitching a bespoke marketplace feed per client per channel. Configure the UCP layer once, roll it across your book, and own the agentic-commerce layer before your competitors notice it exists.

  • → Multi-store workspace
  • → Shared override templates
  • → White-label on the Scale plan
UCPhub
Client A
Client B
Client C
Client D
Client E

A real UCP business
to build your agent against.

Stop reverse-engineering HTML. UCPhub runs a fully working platform-side reference at app.ucphub.ai/demo — a real UCP business you can discover, compare, and check out through, today.

  • → Live platform-side implementation
  • → Deterministic schema, tracked to spec
  • → Buy end-to-end. Debug against real UCP.
GET /.well-known/ucp HTTP/1.1
Host: demo.ucphub.ai

200 OK

{ "ucp": {
    "version": "2026-01-11",
    "capabilities": {
      "dev.ucp.shopping.checkout": [...],
      "dev.ucp.shopping.order":    [...]
    }
} }

§ 06

Field notes

UCP is going to be to agentic commerce what card-present payments were to the web. Getting it plumbed into your store early is the whole play — UCPhub made that a one-afternoon job.
Mark Reynolds
Head of Ecommerce
My store’s job is to be buyable — by humans in my theme, and by agents over UCP. UCPhub let me do both without touching checkout. Nothing else came close.
Elena Petrović
Founder, DTC Brand
One integration that covers every agent that will ever exist beats five custom marketplace feeds that constantly break. We rolled UCPhub across our entire client book in a quarter.
James Whitaker
Technical Lead, Agency
We stopped scraping product pages the week we pointed our agent at the UCPhub demo. Real price, real stock, real checkout. Night and day versus reverse-engineered HTML.
Sofia Klein
PM, AI Commerce Startup

§ 07

Frequently asked

01 What is the Universal Commerce Protocol?
UCP is an open protocol for agentic commerce — co-developed by Google, Shopify, Etsy, Wayfair, Target and Walmart. It defines the building blocks AI agents need to discover, compare and transact with a store: products, offers, checkout, identity linking (OAuth 2.0) and order management, over REST + JSON-RPC. The spec lives at ucp.dev.
02 What does UCPhub do?
UCPhub brings UCP to every commerce platform that doesn’t ship it natively. One UCP Core, kept to spec, plus a pluggable connector per platform. Install the connector, authorize your store, and your catalog is UCP-addressable.
03 Which platforms are supported today?
WooCommerce is live now as a WordPress plugin that connects to the UCPhub API. Magento, BigCommerce and headless connectors are in active development. Shopify already ships UCP natively — you don’t need UCPhub there.
04 Do I need to migrate or re-platform?
No. UCPhub sits alongside your existing platform via a lightweight connector. Your storefront, theme and checkout stay exactly where they are.
05 Why does UCP matter for AI shopping agents?
Agents can’t safely check out against an HTML page. They need explicit endpoints for product, offer, cart, checkout, identity and order state. UCP is how that gets standardized — so agents can buy from your store as easily as they buy from anyone else’s.
06 Can I try the agent side before I install anything?
Yes. UCPhub is one of the few providers that ships both sides of the spec. The platform side — the agent doing the shopping — is live at app.ucphub.ai/demo. Browse it, compare, and check out end-to-end against a real UCP business.
07 Is UCP really an open standard?
Yes. UCP is developed in the open at ucp.dev by Google, Shopify, Etsy, Wayfair, Target and Walmart, and endorsed across the ecosystem by Stripe, PayPal, Visa, Mastercard, Affirm, Klarna and others. UCPhub is an implementation of it — not a proprietary fork.

§ 08

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