UCP Verification Report
greent21.com
Live Universal Commerce Protocol & Agentic Commerce status, profile, and capability breakdown.
✓Verified
A
95/100
What is UCP? The Universal Commerce Protocol is the open standard AI shopping agents use to discover, browse, and check out at online stores. Read the spec overview →
95
/ 100
UCP Score
A
greent21.com publishes a conforming profile with broad capability coverage.
Agent Discovery100
UCP Conformance92
Capability Coverage94
View the full UCP Score reportTop priorities, impact & effort matrix, and copy-paste fixes for every issue.
/llms.txt content
The plain-text brief this store publishes to AI agents. Captured on the most recent check.
mentions UCP
# llms.txt
# Public brief for AI agents about greent21
# About
“ALL GOOD SOLUTIONS START WITH greent21”
# Product Categories
- promotion items
- 【地球月專區】
- 嬰幼兒系列
- 寵物系列
- 消毒清潔全系列
- 過敏皮膚系列
# Policies
- Return policy: https://greent21.com/returnpolicy
- Terms: https://greent21.com/terms
- Privacy: https://greent21.com/privacy
# UCP
- Discovery profile: https://greent21.com/.well-known/ucpCapabilities Detected
| Cart ✓ Bound | 2026-08-25 |
| Discount Extension ✓ Bound | 2026-08-25 |
| Checkout ✓ Bound | 2026-08-25 |
| Fulfillment Extension ✓ Bound | 2026-08-25 |
| Catalog Lookup ✓ Bound | 2026-08-25 |
| Catalog Search ✓ Bound | 2026-08-25 |
Technical Vitals
| UCP Status | Verified |
| Endpoint | https://greent21.com/.well-known/ucp |
| HTTP Status | 200 |
| UCP Version | 2026-08-25 |
| Transports | REST, MCP |
| Last Observed | |
| Last Full Index |
Next Steps
What you can do with this report
Open Validator
Inspect the profile line-by-line and see exactly which schema rules pass or fail.
Run validator →Simulate an Agent Shop
Send a real AI shopping agent to greent21.com and watch it browse, cart, and check out.
Open in Playground ↗Claim this Store
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Access
AI Agent Access (robots.txt)
| GPTBotOpenAI / ChatGPT | ✓Allowed |
| Google-ExtendedGemini / Google | ✓Allowed |
| ClaudeBotClaude / Anthropic | ✓Allowed |
| Applebot-ExtendedApple Intelligence | ✓Allowed |
| CCBotCommon Crawl | ✓Allowed |
Google
Against Google's merchant guide
What Google's UCP merchant guide asks a store's profile to have, for checkout in AI Mode and Gemini. Read from the public profile only. Google's own sandbox, in Merchant Center, is invite-only; this is not Google's verdict.
| Speaks the release Google's guide usesUCP 2026-04-08 (under supported_versions; the profile itself is 2026-08-25) | ✓Has it |
| Shopping service over RESTGoogle calls the REST endpoint. | ✓Has it |
| Checkout capabilitydev.ucp.shopping.checkout is declared. | ✓Has it |
| Order capability, for order updatesGoogle expects signed order webhooks after purchase (dev.ucp.shopping.order). | !Missing |
| Signing keys for webhooksOrder webhooks must be signed with a key published in the profile. | !Missing |
| Google Pay payment handlerGoogle completes checkout with a Google Pay token: publish a com.google.pay handler with your merchant name and id. | !Missing |
| Cart, discounts and fulfilmentcart declared, discounts declared, fulfilment declared. Optional in the guide. | –Optional |
Needs a live checkout to show, so not read here: terms of service and privacy links on every checkout; carts that return continue_url and expires_at; a completed order with its label and permalink_url; errors in the 2026-04-08 shape (ucp.status "error", severity, continue_url).
Checkout
Payment Configuration
💳 Bank Transfer
dev.boutir.payment.bank_transfer
Gateway:Unknown
💳 Pm 4996677061967872
dev.boutir.payment.customized.pm_4996677061967872
Gateway:Unknown
Raw UCP Profile JSON
{
"ucp": {
"keys": [],
"status": "success",
"version": "2026-08-25",
"services": {
"dev.ucp.shopping": [
{
"spec": "https://ucp.dev/2026-08-25/specification/overview",
"schema": "https://ucp.dev/2026-08-25/services/shopping/rest.openapi.json",
"version": "2026-08-25",
"endpoint": "https://greent21.com/apis/ucp",
"transport": "rest"
},
{
"spec": "https://ucp.dev/2026-08-25/specification/overview",
"schema": "https://ucp.dev/2026-08-25/services/shopping/mcp.openrpc.json",
"version": "2026-08-25",
"endpoint": "https://greent21.com/apis/ucp/mcp",
"transport": "mcp"
}
]
},
"capabilities": {
"dev.ucp.shopping.cart": [
{
"spec": "https://ucp.dev/2026-08-25/specification/cart",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/cart.json",
"version": "2026-08-25"
}
],
"dev.ucp.shopping.checkout": [
{
"spec": "https://ucp.dev/2026-08-25/specification/checkout",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/checkout.json",
"version": "2026-08-25"
}
],
"dev.ucp.shopping.discount": [
{
"spec": "https://ucp.dev/2026-08-25/specification/discount",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/discount.json",
"extends": [
"dev.ucp.shopping.cart",
"dev.ucp.shopping.checkout"
],
"version": "2026-08-25"
}
],
"dev.ucp.shopping.fulfillment": [
{
"spec": "https://ucp.dev/2026-08-25/specification/fulfillment",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/fulfillment.json",
"extends": [
"dev.ucp.shopping.checkout"
],
"version": "2026-08-25"
}
],
"dev.ucp.shopping.catalog.lookup": [
{
"spec": "https://ucp.dev/2026-08-25/specification/catalog/lookup/",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/catalog_lookup.json",
"version": "2026-08-25"
}
],
"dev.ucp.shopping.catalog.search": [
{
"spec": "https://ucp.dev/2026-08-25/specification/catalog/search/",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/catalog_search.json",
"version": "2026-08-25"
}
]
},
"payment_handlers": {
"dev.boutir.payment.bank_transfer": [
{
"id": "dev.boutir.payment.bank_transfer",
"spec": "https://greent21.com/.well-known/ucp/payment-handler/spec",
"config": {
"description": "Use payment.instruments with bank_transfer type."
},
"schema": "https://greent21.com/.well-known/ucp/payment-handler/schema.json",
"version": "2026-08-25",
"available_instruments": [
{
"type": "bank_transfer"
}
]
}
],
"dev.boutir.payment.customized.pm_4996677061967872": [
{
"id": "dev.boutir.payment.customized.pm_4996677061967872",
"spec": "https://greent21.com/.well-known/ucp/payment-handler/spec",
"config": {
"name": "FPS",
"description": "Use this handler_id for customized payment.",
"customized_payment_method_id": "4996677061967872"
},
"schema": "https://greent21.com/.well-known/ucp/payment-handler/schema.json",
"version": "2026-08-25",
"available_instruments": [
{
"type": "customized"
}
]
}
]
},
"supported_versions": {
"2026-04-08": "https://greent21.com/.well-known/ucp/2026-04-08",
"2026-08-25": "https://greent21.com/.well-known/ucp/2026-08-25"
}
}
}
Capability Match
6 shared
6 shared
6 shared
6 shared
6 shared
6 shared
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Frequently Asked
About this greent21.com report
What does it mean that greent21.com is verified for UCP?
It means greent21.com publishes a valid UCP profile at
/.well-known/ucp, the profile passes schema validation against 2026-08-25, and AI agents can discover its commerce capabilities without needing to scrape HTML. That is what the store declares. Whether an agent actually completes a purchase is a separate question — where an observed agent run is shown on this page, it answers that one.Can I trust greent21.com for AI agent purchases?
Verification means the store is technically ready — payment handlers declared, transports reachable, schema valid. It doesn't grade business reputation or fulfilment quality. For trust on the commerce side itself, check the store's own reviews. For trust on the agent integration side, this page is the source of truth.
What platform does greent21.com use for UCP?
Our detection identifies greent21.com as running on Boutir. Many large UCP-verified stores use Shopify, BigCommerce, or custom stacks built on the open spec. The transport list above shows the exact mechanism (REST, MCP, A2A, Embedded) the profile declares.
How was this UCP report for greent21.com generated?
Our crawler fetches
greent21.com/.well-known/ucp directly, parses the profile against the official UCP JSON schema, checks robots.txt for AI bot policies, and runs payment-handler validation. No manual review, no opinions — just what the profile actually says. The check ran 20 minutes ago.How often is greent21.com re-checked?
Every domain in our directory is re-crawled at least every 24 hours. You can also trigger a fresh check from this page at any time, or subscribe to alerts to get notified the moment the status changes — that's how we built the only continuously updated UCP directory on the internet.
Why does this status matter?
Universal Commerce Protocol is the standard AI shopping agents (ChatGPT, Claude, Gemini, Apple Intelligence) use to discover what a store sells, how to add items to a cart, and how to check out. If a store isn't UCP-verified, agents can still scrape it — but they'll be slower, less reliable, and far more likely to fail at checkout. UCP turns a guess into a guarantee.
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