UCP Checker
Check a store
UCP status report

deadbeatcustoms.com

Verified

deadbeatcustoms.com publishes a valid UCP profile. That is what it declares. An observed agent run shows how far an agent actually gets.

BigcommerceREST, MCPHTTP 200 in 325 msrelease 2026-04-08

UCP Score 90/100 grade A · ready for UCP agents To fix 6 1 breaks the spec
Passed 14 checks
Checked 17 Oct 02:56 UTC · public requests

Findings

14 passed · 6 to fix
Discovery
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
Move to the latest UCP protocol version
ucp.version
Your profile declares a valid but older protocol version. A newer one is published. How to fix →
ucp.version
OK
Profile passes schema validation
ucp
No structural errors
ucp
OK
Protocol version present and well-formed
ucp.version
Version: 2026-04-08
ucp.version
OK
Public keys published
keys
Keys published at the top level
keys
OK
No validation warnings
ucp
No outstanding validation issues
ucp
OK
Spec & schema URLs resolve (11)
spec, schema
All 11 URLs resolved.
spec, schema
Services
Problem
Repair declared transport endpoints
ucp.services
One or more declared transport endpoints did not respond when probed. How to fix →
ucp.services
OK
Capabilities declared
capabilities
3 of 6 capability families detected: Checkout, Cart Management, Order Management. 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
1 handler registered
payment_handlers
Outside UCP
To fix
Publish a /llms.txt brand brief
/llms.txt
No /llms.txt file detected at the root of your domain. How to fix →
/llms.txt
To fix
Publish a sitemap.xml
/sitemap.xml
No sitemap.xml detected at the root of your domain. How to fix →
/sitemap.xml
To fix
Add Open Graph meta tags to the homepage
og: meta
OG tags missing or incomplete on your homepage. How to fix →
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 deadbeatcustoms.com 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
6 requests · 691 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
    No answer
  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
  • 2 requestsCalling its servicesREST, MCP · no answer · 0 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, 2.6 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.
No answer
04 · Calling its services2 requests
The REST service did not answer at its address (404). The MCP service did not answer tools/list in 182 ms, 0 tools.
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, 2.6 KB of JSON325 ms
  2. 01 PROFILEGET /robots.txt → allows /.well-known/ucp–
  3. 01 PROFILEValid against the 2026-04-08 schema; keys publishedlocal
  4. 01 PROFILE11 of 11 spec and schema URLs in the profile resolvespec hosts
  5. 04 SERVICESGET /api/ucp → 404184 ms
  6. 04 SERVICESPOST /api/ucp/mcp tools/list → 401, 0 tools182 ms
  7. OUTSIDE UCPGET / → 200, Organization schema found–
  8. OUTSIDE UCPGET /llms.txt → 404, not found–

MCP tools

0 listed · 0 of 10 the spec expects

The tools deadbeatcustoms.com'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.

Cartdev.ucp.shopping.cart
create_cartget_cartupdate_cartcancel_cart
Checkoutdev.ucp.shopping.checkout
create_checkoutget_checkoutupdate_checkoutcomplete_checkoutcancel_checkout
Orderdev.ucp.shopping.order
get_order

Capabilities

5 declared, all at 2026-04-08
Cart shopping.cart
Order Management shopping.order
Checkout shopping.checkout
Discountextension shopping.discount
Fulfillmentextension shopping.fulfillment

Payment handlers

1 declared
Google Pay authorizenet.googlepay
UCP profile as served 5.8 KB · 148 lines 
{
    "ucp": {
        "version": "2026-04-08",
        "services": {
            "dev.ucp.shopping": [
                {
                    "version": "2026-04-08",
                    "endpoint": "https://deadbeatcustoms.com/api/ucp",
                    "transport": "rest"
                },
                {
                    "version": "2026-04-08",
                    "endpoint": "https://deadbeatcustoms.com/api/ucp/mcp",
                    "transport": "mcp"
                }
            ]
        },
        "capabilities": {
            "dev.ucp.shopping.cart": [
                {
                    "spec": "https://ucp.dev/specification/cart",
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/cart.json",
                    "version": "2026-04-08"
                }
            ],
            "dev.ucp.shopping.order": [
                {
                    "spec": "https://ucp.dev/specification/order",
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/order.json",
                    "version": "2026-04-08"
                }
            ],
            "dev.ucp.shopping.checkout": [
                {
                    "spec": "https://ucp.dev/specification/checkout",
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/checkout.json",
                    "version": "2026-04-08"
                }
            ],
            "dev.ucp.shopping.discount": [
                {
                    "spec": "https://ucp.dev/2026-04-08/specification/discount",
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/discount.json",
                    "extends": [
                        "dev.ucp.shopping.checkout"
                    ],
                    "version": "2026-04-08"
                }
            ],
            "dev.ucp.shopping.fulfillment": [
                {
                    "spec": "https://ucp.dev/specification/fulfillment",
                    "config": {
                        "allows_multi_destination": {
                            "shipping": true
                        },
                        "allows_method_combinations": [
                            [
                                "shipping"
                            ]
                        ]
                    },
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/fulfillment.json",
                    "extends": [
                        "dev.ucp.shopping.checkout"
                    ],
                    "version": "2026-04-08"
                }
            ]
        },
        "payment_handlers": {
            "com.google.pay": [
                {
                    "id": "authorizenet.googlepay",
                    "spec": "https://pay.google.com/gp/p/ucp/2026-01-11/",
                    "config": {
                        "api_version": 2,
                        "environment": "PRODUCTION",
                        "merchant_info": {
                            "merchant_id": "17070464583508881789",
                            "merchant_name": "Deadbeat Customs",
                            "merchant_origin": "store-zsz1m.mybigcommerce.com"
                        },
                        "api_version_minor": 0,
                        "allowed_payment_methods": [
                            {
                                "type": "CARD",
                                "parameters": {
                                    "allowed_auth_methods": [
                                        "PAN_ONLY",
                                        "CRYPTOGRAM_3DS"
                                    ],
                                    "allowed_card_networks": [
                                        "AMEX",
                                        "DISCOVER",
                                        "JCB",
                                        "MASTERCARD",
                                        "VISA"
                                    ],
                                    "billing_address_required": true,
                                    "billing_address_parameters": {
                                        "format": "FULL",
                                        "phone_number_required": true
                                    }
                                },
                                "tokenization_specification": {
                                    "type": "PAYMENT_GATEWAY",
                                    "parameters": {
                                        "gateway": "authorizenet",
                                        "gatewayMerchantId": "1022627"
                                    }
                                }
                            }
                        ]
                    },
                    "schema": "https://pay.google.com/gp/p/ucp/2026-01-11/schemas/config.json",
                    "version": "2026-01-11",
                    "config_schema": "https://pay.google.com/gp/p/ucp/2026-01-11/schemas/config.json",
                    "instrument_schemas": [
                        "https://pay.google.com/gp/p/ucp/2026-01-11/schemas/card_payment_instrument.json"
                    ]
                }
            ]
        }
    },
    "keys": [
        {
            "x": "dUN39HSHAbs2s82_qAygkBfEDSphTpLHxKirlo1HcPs",
            "y": "In0TWPz_caAlu5Dv0Aa9CUAQHXRtng_AJaYZQwDmwjs",
            "alg": "ES256",
            "crv": "P-256",
            "kid": "key1",
            "kty": "EC",
            "use": "sig"
        }
    ],
    "signing_keys": [
        {
            "x": "dUN39HSHAbs2s82_qAygkBfEDSphTpLHxKirlo1HcPs",
            "y": "In0TWPz_caAlu5Dv0Aa9CUAQHXRtng_AJaYZQwDmwjs",
            "alg": "ES256",
            "crv": "P-256",
            "kid": "key1",
            "kty": "EC",
            "use": "sig"
        }
    ]
}
What goes in a UCP profile →Check your JSON in the Validator →Guides by store platform →
Is deadbeatcustoms.com 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/deadbeatcustoms.com)](https://ucpchecker.com/status/deadbeatcustoms.com)

Questions

Can UCP agents buy from deadbeatcustoms.com?
Through its REST and MCP services, an agent can 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 deadbeatcustoms.com ready for UCP agents?
deadbeatcustoms.com publishes a valid UCP profile and scores 90/100 (grade A). 6 things to fix: the profile has no ETag or Last-Modified header, repair declared transport endpoints, move to the latest UCP protocol version and publish a /llms.txt brand brief.
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. deadbeatcustoms.com's is 2.6 KB, written for UCP 2026-04-08. What goes in a UCP profile.
How was deadbeatcustoms.com checked?
With public requests on 17 Oct 2026: we read /.well-known/ucp and robots.txt, validated the profile against UCP 2026-04-08, checked that its spec and schema links resolve. No sign-in and no purchase. How we check.