UCP Checker
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UCP status report

hoimeitan.com.hk

Verified

hoimeitan.com.hk publishes a valid UCP profile. The checks below list what is still worth adding.

BoutirREST, MCPHTTP 200 in 956 msrelease 2026-08-25

UCP Score 95/100 grade A · ready for UCP agents To fix 3 1 breaks the spec
Passed 15 checks
Checked 16 Oct 07:06 UTC · public requests

Findings

15 passed · 3 to fix
Discovery
Problem
The profile isn't served with the caching the spec requires
Served with Cache-Control "no-store, no-cache, must-revalidate, max-age=0, private". Spec level: MUST. Not part of the UCP Score. How to fix →
To fix
The profile has no ETag or Last-Modified header
Spec level: SHOULD. Not part of the UCP Score. How to fix →
OK
HTTPS
https
Profile URL uses https://
https
OK
UCP profile reachable
/.well-known/ucp
HTTP 200
/.well-known/ucp
OK
AI bot access
robots.txt
robots.txt allows /.well-known/ucp
robots.txt
UCP profile
To fix
Publish the public keys agents use to check your messages
keys
Your UCP profile lists no public keys, so an agent cannot confirm that a message really came from your store. How to fix →
keys
OK
Profile passes schema validation
ucp
No structural errors
ucp
OK
Protocol version present and well-formed
ucp.version
Version: 2026-08-25
ucp.version
OK
No validation warnings
ucp
No outstanding validation issues
ucp
Services
OK
Capabilities declared
capabilities
3 of 6 capability families detected: Checkout, Cart Management, Catalog. A family counts once however many namespaces or extensions declare it.
capabilities
OK
Checkout capability
shopping.checkout
dev.ucp.shopping.checkout detected
shopping.checkout
OK
Transports declared
services
REST, MCP
services
OK
Payment handlers
payment_handlers
2 handlers registered
payment_handlers
Outside UCP
OK
llms.txt
/llms.txt
Found at /llms.txt
/llms.txt
OK
sitemap.xml
/sitemap.xml
Found at /sitemap.xml
/sitemap.xml
OK
Open Graph tags
og: meta
og:title and og:type/url present
og: meta
OK
Organization schema (JSON-LD)
JSON-LD
Organization-typed JSON-LD detected
JSON-LD
OK
Mobile viewport meta
meta viewport
<meta name="viewport"> present
meta viewport
Check trace

How hoimeitan.com.hk answered our check

The five ways an agent can reach this store, what each one met, and every request we made.

1 of 5 open
4 requests · 956 ms at the store · public requests only
  1. 01Hosting ↗
    Finding the profile
    Open
  2. 02Identity Linking ↗
    Acting for the buyer
    Not offered
  3. 03Embedded ↗
    In the buyer's browser
    Not offered
  4. 04Services ↗
    Calling its services
    Declared
  5. 05continue_url ↗
    Sending the buyer to the website
    Not declared
UCP Checkerpublic requests
  • 2 requestsFinding the profile/.well-known/ucp · 200
  • read from profileActing for the buyernot declared
  • read from profileIn the buyer's browsernot declared
  • not calledCalling its servicesREST, MCP · declared · 10 tools
  • read from profileSending to the websitenot declared
  • 2 requestsOutside UCPhomepage · /llms.txt
Open
01 · Finding the profile2 requests
Served at /.well-known/ucp with 200 OK, 2.8 KB. robots.txt allows /.well-known/ucp.
Not offered
02 · Acting for the buyerread from profile
The profile doesn't declare identity linking, so an agent can't act for a signed-in buyer.
Not offered
03 · In the buyer's browserread from profile
No Embedded service is declared.
Declared
04 · Calling its servicesnot called
The REST service is declared; not called by this check. The MCP service is declared; not called by this check.
Not declared
05 · Sending the buyer to the websiteread from profile
No permalink declared. Whether error replies carry a continue_url shows only in an agent run.
  1. 01 PROFILEGET /.well-known/ucp → 200, 2.8 KB of JSON956 ms
  2. 01 PROFILEGET /robots.txt → allows /.well-known/ucp–
  3. 01 PROFILEValid against the 2026-08-25 schema; keys publishedlocal
  4. OUTSIDE UCPGET / → 200, Organization schema found–
  5. OUTSIDE UCPGET /llms.txt → 200, 1.0 KB–

MCP tools

10 listed · 10 of 12 the spec expects

The tools hoimeitan.com.hk's MCP service listed when we asked (tools/list), grouped by the capability in its profile that calls for them. Struck through: expected but not listed.

Catalog searchdev.ucp.shopping.catalog.search
search_catalog
Catalog lookupdev.ucp.shopping.catalog.lookup
lookup_catalogget_product
Cartdev.ucp.shopping.cart
create_cartget_cartupdate_cartcancel_cart
Checkoutdev.ucp.shopping.checkout
create_checkoutget_checkoutupdate_checkoutcomplete_checkoutcancel_checkout

Capabilities

6 declared, all at 2026-08-25
Cart shopping.cart
Checkout shopping.checkout
Discountextension shopping.discount
Fulfillmentextension shopping.fulfillment
Catalog Lookup shopping.catalog.lookup
Catalog Search shopping.catalog.search

Payment handlers

2 declared
Bank Transfer dev.boutir.payment.bank_transfer
Pm 6082353704599552 dev.boutir.payment.customized.pm_6082353704599552
UCP profile as served 4.8 KB · 116 lines 
{
    "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://hoimeitan.com.hk/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://hoimeitan.com.hk/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://hoimeitan.com.hk/.well-known/ucp/payment-handler/spec",
                    "config": {
                        "description": "Use payment.instruments with bank_transfer type."
                    },
                    "schema": "https://hoimeitan.com.hk/.well-known/ucp/payment-handler/schema.json",
                    "version": "2026-08-25",
                    "available_instruments": [
                        {
                            "type": "bank_transfer"
                        }
                    ]
                }
            ],
            "dev.boutir.payment.customized.pm_6082353704599552": [
                {
                    "id": "dev.boutir.payment.customized.pm_6082353704599552",
                    "spec": "https://hoimeitan.com.hk/.well-known/ucp/payment-handler/spec",
                    "config": {
                        "name": "轉數快",
                        "description": "Use this handler_id for customized payment.",
                        "customized_payment_method_id": "6082353704599552"
                    },
                    "schema": "https://hoimeitan.com.hk/.well-known/ucp/payment-handler/schema.json",
                    "version": "2026-08-25",
                    "available_instruments": [
                        {
                            "type": "customized"
                        }
                    ]
                }
            ]
        },
        "supported_versions": {
            "2026-04-08": "https://hoimeitan.com.hk/.well-known/ucp/2026-04-08",
            "2026-08-25": "https://hoimeitan.com.hk/.well-known/ucp/2026-08-25"
        }
    }
}
What goes in a UCP profile →Check your JSON in the Validator →Guides by store platform →
/llms.txt as served 1.0 KB · mentions UCP 
# llms.txt
# Public brief for AI agents about 海味灘Hoi Mei Tan

# About
食，不止是「食得飽」，更重要的是「食得好」，真正滋養身心。
海味灘是一間提供優質海味乾貨、本地特色食品及養生食材的網上商店，
致力推廣食材營養資訊與故事，希望讓大家認識食物的真正價值。

# Product Categories
- 利咽潤肺
- 小小心意
- 山珍與花
- 山珍與花 > 花類
- 山珍與花 > 菇菌類
- 山珍與花 > 西藏野生冬蟲夏草
- 強根骨｜壯腰腎
- 抗氧化｜抗衰老
- 提升免疫力
- 清肝明目
- 湯水拍檔
- 滋補養顏
- 特色海味 X 食品雜貨
- 特色海味 X 食品雜貨 > 南丫島特色醬料｜食品
- 袪濕健脾
- 補益氣血
- 靚海味
- 靚海味 > 元貝
- 靚海味 > 海參
- 靚海味 > 罐頭鮑魚｜乾鮑

# Policies
- Return policy: https://hoimeitan.com.hk/returnpolicy
- Terms: https://hoimeitan.com.hk/terms
- Privacy: https://hoimeitan.com.hk/privacy

# UCP
- Discovery profile: https://hoimeitan.com.hk/.well-known/ucp
Is hoimeitan.com.hk your store?
Claim it with one DNS record.
Claim this store Send an agent to shop here ↗

Status badge

Markdown · 
[![UCP Status](https://ucpchecker.com/badge/hoimeitan.com.hk)](https://ucpchecker.com/status/hoimeitan.com.hk)

Questions

Can UCP agents buy from hoimeitan.com.hk?
Through its REST and MCP services, an agent can search the catalogue, build a cart and start a checkout. This is what the store declares and what our check reached; an observed agent run shows how far an agent actually gets.
Is hoimeitan.com.hk ready for UCP agents?
hoimeitan.com.hk publishes a valid UCP profile and scores 95/100 (grade A). 3 things to fix: the profile isn't served with the caching the spec requires, the profile has no ETag or Last-Modified header and publish the public keys agents use to check your messages.
What is a UCP profile?
The JSON file a store publishes at /.well-known/ucp to tell UCP agents which services it offers, how to call them and how it takes payment. The spec calls it the business profile. hoimeitan.com.hk's is 2.8 KB, written for UCP 2026-08-25. What goes in a UCP profile.
How was hoimeitan.com.hk checked?
With public requests on 16 Oct 2026: we read /.well-known/ucp and robots.txt, validated the profile against UCP 2026-08-25, checked that its spec and schema links resolve. No sign-in and no purchase. How we check.