10 actions in 4 pieces of software · ranked by words, meaning and measured trust · 650 ms

1. 1ucpverified and signedpassport

   skillshopify/shopify-ai-toolkitrecord

   • ucp

     Use when the user wants to use the UCP CLI to find, compare, buy, or track products from online merchants, or to set up and troubleshoot the local UCP profile required for merchant-scoped operations. Covers global catalog search ("find me X under $Y"), named-merchant transactions ("buy this from Z.c

2. 2ucpverified and signedpassport

   skillvercel-labs/agentic-commerce-skillsrecord

   • ucp

     Expert-level implementation assistant for the Universal Commerce Protocol (UCP). Provides comprehensive tooling for adding UCP support to Next.js ecommerce codebases — from initial consultation through full implementation, testing, and validation.

3. 3shopify-ucp-bridgefound in code, not yet checkedno passport yet

   MCP serverdorrio/shopify-ucp-bridge

   • create_cart

     Create a new shopping cart with line items.

   • update_cart

     Update cart line items.

   • list_orders

     List recent orders with optional filters.

   • delete_cart

     Delete a cart.

   • get_order

     Retrieve an order by ID. Returns order details, line items, fulfillment status.

   • get_checkout

     Retrieve a checkout session by ID. Returns current status, line items, totals, and messages.

4. 4UCP Checkerfound in code, not yet checkedno passport yet

   MCP server

   • add-to-cart

     Add a product to cart on any UCP-enabled Shopify store and get a checkout URL. Requires a variant ID from the search-catalog or get-product-details results. Returns the cart contents, checkout URL, and a cart_id token. To build multi-item carts: pass the returned cart_id back on su

   • check-domain

     Check if a domain supports Universal Commerce Protocol (UCP). Returns the UCP status, manifest version, capabilities, response latency, and AI bot access policies (GPTBot, ClaudeBot, Google-Extended, etc.). The domain is automatically normalized (removes protocol, www, paths).