generated: '2026-08-04'
method: searched
source: https://partyshop.paperlesspost.com/llms.txt
status: published
server:
  name: paperless-post-party-shop
  transport: http
  url: https://partyshop.paperlesspost.com/api/ucp/mcp
  canonical_url: https://paperless-post.myshopify.com/api/ucp/mcp
  protocol: Universal Commerce Protocol (UCP) dev.ucp.shopping service
  protocol_versions: ['2026-04-08', '2026-01-23']
  spec: https://ucp.dev/2026-04-08/specification/overview/
  schema: https://ucp.dev/2026-04-08/services/shopping/mcp.openrpc.json
  discovery: https://partyshop.paperlesspost.com/.well-known/ucp
  platform: Shopify
scope: >-
  This MCP server covers ONLY the Paperless Post Party Shop merchandise
  storefront (partyshop.paperlesspost.com). The core Paperless Post invitation
  and card product at www.paperlesspost.com exposes no MCP server and no public
  API.
introspection:
  method: POST tools/list
  status: gated
  http_status: 422
  error: 'jsonrpc -32001 UCP discovery failed / invalid_profile_url: "Unable to fetch
    agent profile: Missing profile uri"'
  note: >-
    tools/list and initialize both require the calling agent to present a
    resolvable UCP agent-profile URI. Anonymous introspection is refused, so the
    real inputSchemas were NOT harvested. The tool names below are taken
    verbatim from the provider's own published /llms.txt and /agents.md agent
    flow — names and purpose only, no invented schemas.
tools:
- name: search_catalog
  description: Find products in the store matching the buyer's intent.
  source: https://partyshop.paperlesspost.com/agents.md
  input_schema: not-harvested-introspection-gated
- name: create_cart
  description: Create a cart and add the desired items.
  source: https://partyshop.paperlesspost.com/agents.md
  input_schema: not-harvested-introspection-gated
- name: create_checkout
  description: Start the purchase flow for a cart.
  source: https://partyshop.paperlesspost.com/agents.md
  input_schema: not-harvested-introspection-gated
- name: update_checkout
  description: Set the shipping address and shipping method on a checkout.
  source: https://partyshop.paperlesspost.com/agents.md
  input_schema: not-harvested-introspection-gated
- name: complete_checkout
  description: Finalize the purchase. The buyer must explicitly approve payment.
  source: https://partyshop.paperlesspost.com/agents.md
  input_schema: not-harvested-introspection-gated
capabilities:
- dev.ucp.shopping.checkout
- dev.ucp.shopping.fulfillment
- dev.ucp.shopping.discount
payment_handlers:
- dev.shopify.shop_pay
- dev.shopify.card
- google_pay
rules:
- Checkout requires contemporaneous human approval; agents must not complete payment
  without explicit buyer consent.
- The MCP endpoint is rate-limited per IP; back off on 429.
- Pass context.address_country and context.currency for accurate pricing and availability.
x-evidence:
  fetched: '2026-08-04'
  urls:
  - {url: 'https://partyshop.paperlesspost.com/llms.txt', http_status: 200}
  - {url: 'https://partyshop.paperlesspost.com/agents.md', http_status: 200}
  - {url: 'https://partyshop.paperlesspost.com/.well-known/ucp', http_status: 200}
  - {url: 'https://partyshop.paperlesspost.com/api/ucp/mcp', http_status: 422, method: POST}