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Informations about the package module-ucp

Angeo UCP — /.well-known/ucp for Magento 2

Publishes a Universal Commerce Protocol business profile at /.well-known/ucp so AI shopping agents (Google/Gemini, ChatGPT, etc.) can discover your store's commerce capabilities.

How the endpoint is served

/.well-known/ucp is delivered by a controller, not a static file, because the UCP spec requires Content-Type: application/json and CORS headers (Access-Control-Allow-Origin: *) — neither of which a static file without an extension can provide without editing the web server.

Component Role
Controller\Router Custom router matching the exact path /.well-known/ucp and dispatching the action. Registered in etc/di.xml via RouterList (sortOrder 22, before the CMS router). Returns null for any other path.
Controller\WellKnown\Ucp Builds and returns the profile as JSON with Content-Type: application/json, CORS, Cache-Control: public, max-age=300, and hardening headers. Returns 404 when the module is disabled (the site simply does not advertise UCP). Public, no auth — as the spec requires.
Model\ProfileGenerator Builds the spec-2026-04-08 profile (services, capabilities, extensions, payment handlers, supported versions, public signing keys).
Model\Keys\KeyGenerator / JwkFormatter Generates ECDSA P-256 keys and formats the public half as a JWK.

Why this reaches PHP without web-server changes

The stock Magento nginx config ends its main location with try_files $uri $uri/ /index.php$is_args$args. A request for /.well-known/ucp with no matching static file falls through to index.php, where the custom router dispatches it. The official Magento nginx sample has no location ~ /\. deny rule, so the dot-segment is not blocked.

If your host added a custom location ~ /\. { deny all; } rule it blocks all dot-paths, and the profile then needs a one-line nginx allow for ^~ /.well-known/. The stock config does not have this problem.

Do not leave a static file at pub/.well-known/ucp: nginx would serve it first (as application/octet-stream, no CORS) and the controller would never run.

Install

Generate signing keys, then verify:

CLI

Command Purpose
bin/magento angeo:ucp:keys:generate Generate / rotate the ECDSA P-256 signing key pair.
bin/magento angeo:ucp:validate Validate the generated profile against the UCP spec.

Configuration

Stores → Configuration → Angeo UCP — enable the module and declare which capabilities your store supports (catalog search/lookup, cart, checkout, order, identity linking, fulfillment, discount), payment handlers, and supported protocol versions.

Security

All versions of module-ucp with dependencies

PHP Build Version
Package Version
Requires php Version >=8.2
ext-openssl Version *
ext-json Version *
magento/framework Version >=103.0.0
magento/module-config Version >=101.0.0
magento/module-backend Version >=102.0.0
magento/module-store Version >=101.0.0
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