generated: '2026-07-18'
method: searched
status: published
source: https://www.arka.com/llms.txt
note: Arka's storefront (Shopify) exposes an agent-commerce surface via the Universal Commerce Protocol
  (UCP, ucp.dev). The MCP endpoint and tool flow below are documented in arka.com's own /llms.txt and
  /.well-known/ucp; the transport and schemas are the Shopify-native UCP implementation served on the
  arka.com domain.
server:
  name: arka-ucp-shopping
  transport: http
  protocol: ucp
  ucp_versions:
  - '2026-04-08'
  - '2026-01-23'
  url: https://www.arka.com/api/ucp/mcp
  canonical_url: https://arkainc.myshopify.com/api/ucp/mcp
  schema: https://ucp.dev/2026-04-08/services/shopping/mcp.openrpc.json
  discovery: https://www.arka.com/.well-known/ucp
tools:
- name: search_catalog
  description: Search the store catalog for products matching the buyer's intent.
  source: https://www.arka.com/llms.txt
- name: create_cart
  description: Create a cart and add the desired items.
  source: https://www.arka.com/llms.txt
- name: create_checkout
  description: Start the purchase/checkout flow for a cart.
  source: https://www.arka.com/llms.txt
- name: update_checkout
  description: Set shipping address and method on an in-progress checkout.
  source: https://www.arka.com/llms.txt
- name: complete_checkout
  description: Finalize the purchase. Requires explicit buyer approval of payment.
  source: https://www.arka.com/llms.txt
rules:
- Checkout requires contemporaneous human approval of payment.
- MCP endpoint is rate-limited per IP; back off on HTTP 429.
- Pass buyer context (address_country, currency) for accurate pricing/availability.
deployment:
  mode: remote
  endpoint: https://www.arka.com/api/ucp/mcp
  verified: probed
  probe: live
  tools: 13
  checked: '2026-08-12'
  source: catalog MCP census