UCP Checker
Check a store
UCP status report

seatosummit.es

Verified

seatosummit.es publishes a valid UCP profile. The checks below list what is still worth adding.

MagentoMCPHTTP 200 in 778 msrelease 2026-04-08

UCP Score 80/100 grade B · nearly there To fix 6 1 breaks the spec
Passed 9 checks
Checked 16 Oct 18:24 UTC · public requests

Findings

9 passed · 6 to fix · 1 note
Discovery
Problem
The profile isn't served with the caching the spec requires
Served with Cache-Control "max-age=3600, s-maxage=0". 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
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
Services
Note
Confirm checkout-link redirect strategy
payment_handlers is present but empty — agents will not be able to complete purchases via tokenized payment flow. If this store uses checkout-link redirects, this is expected.
OK
Transports declared
services
MCP
services
Outside UCP
To fix
Publish Organization schema (JSON-LD) on the homepage
JSON-LD
No Organization-typed JSON-LD detected on your homepage. How to fix →
JSON-LD
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
OK
Open Graph tags
og: meta
og:title and og:type/url present
og: meta
OK
Mobile viewport meta
meta viewport
<meta name="viewport"> present
meta viewport
Check trace

How seatosummit.es 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 · 778 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 servicesMCP · declared · 6 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, 2.0 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 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, 2.0 KB of JSON778 ms
  2. 01 PROFILEGET /robots.txt → allows /.well-known/ucp–
  3. 01 PROFILEValid against the 2026-04-08 schema; no keys publishedlocal
  4. OUTSIDE UCPGET / → 200, no Organization schema found–
  5. OUTSIDE UCPGET /llms.txt → 500, not found–

MCP tools

6 listed · 6 of 7 the spec expects

The tools seatosummit.es'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

Capabilities

3 declared, all at 2026-04-08
Cart shopping.cart
Catalog Lookup shopping.catalog.lookup
Catalog Search shopping.catalog.search
UCP profile as served 2.0 KB · 55 lines 
{
    "ucp": {
        "version": "2026-04-08",
        "services": {
            "dev.ucp.shopping": [
                {
                    "spec": "https://ucp.dev/2026-04-08/specification/overview/",
                    "schema": "https://ucp.dev/2026-04-08/services/shopping/mcp.openrpc.json",
                    "version": "2026-04-08",
                    "endpoint": "https://seatosummit.es/agent/mcp",
                    "transport": "mcp"
                }
            ]
        },
        "capabilities": {
            "dev.ucp.shopping.cart": [
                {
                    "spec": "https://ucp.dev/2026-04-08/specification/cart",
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/cart.json",
                    "version": "2026-04-08"
                }
            ],
            "dev.ucp.shopping.catalog.lookup": [
                {
                    "spec": "https://ucp.dev/2026-04-08/specification/catalog",
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/catalog_lookup.json",
                    "version": "2026-04-08"
                }
            ],
            "dev.ucp.shopping.catalog.search": [
                {
                    "spec": "https://ucp.dev/2026-04-08/specification/catalog",
                    "schema": "https://ucp.dev/2026-04-08/schemas/shopping/catalog_search.json",
                    "version": "2026-04-08"
                }
            ]
        },
        "payment_handlers": [],
        "supported_versions": {
            "2026-01-23": "https://seatosummit.es/.well-known/ucp/2026-01-23",
            "2026-04-08": "https://seatosummit.es/.well-known/ucp/2026-04-08"
        }
    },
    "signing_keys": [
        {
            "x": "QWSDYx-2kezLBOYbX6p1WLc-sX8ycf6n5yLp-9EFGtY",
            "y": "k3ZQUuCAUcTVvMU6h5bXCcnUxTmR82hVrwUVYYvGhA0",
            "alg": "ES256",
            "crv": "P-256",
            "kid": "01cddf491e89579a-mst-ucp-v1",
            "kty": "EC",
            "use": "sig"
        }
    ]
}
What goes in a UCP profile →Check your JSON in the Validator →Guides by store platform →
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Status badge

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

Questions

Can UCP agents buy from seatosummit.es?
Through its MCP service, an agent can search the catalogue and build a cart. This is what the store declares and what our check reached; an observed agent run shows how far an agent actually gets.
Is seatosummit.es ready for UCP agents?
seatosummit.es publishes a valid UCP profile and scores 80/100 (grade B). 6 things to fix: the profile isn't served with the caching the spec requires, the profile has no ETag or Last-Modified header, publish Organization schema (JSON-LD) on the homepage and move to the latest UCP protocol version.
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. seatosummit.es's is 2.0 KB, written for UCP 2026-04-08. What goes in a UCP profile.
How was seatosummit.es checked?
With public requests on 16 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.