Facet UCP Shopping

Name: Facet UCP Shopping
Author: llc.facet

MCP serverMCP

The independent agent-commerce protocol for AI-agent checkout on any online store.

by llc.facethomepage ↗v1.0.0

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Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability3/3 checks ok

30 days agotoday

Endpoints

https://api.facet.llc/ucp/mcpmcp streamable http · checked on a schedule

Registry facts

Not distributed through a package registry we index.

when	check	result	http	latency	detail
6 h ago	mcp initialize	ok	200	139 ms	server facet-ucp-shopping 2026-08-25 · protocol 2025-06-18 · 23 tools
13 h ago	mcp initialize	ok	200	152 ms	server facet-ucp-shopping 2026-08-25 · protocol 2025-06-18 · 23 tools
20 h ago	mcp initialize	ok	200	150 ms	server facet-ucp-shopping 2026-08-25 · protocol 2025-06-18 · 23 tools

Tools observed via MCP handshake

search_catalog — Search the merchant catalog for products matching a free-text query.
lookup_catalog — Look up one or more products or variants by identifier (batch).
get_product — Get full product detail by product or variant identifier.
discover_businesses — Find businesses in the Facet Universal Business Index that an agent can transact with. Returns `featured` (claimed merchants with a live `terminal_url` — point
discover_products — Search products ACROSS every merchant in the Facet network that has opted into cross-merchant discovery. Returns matches each carrying the selling merchant's `t
get_quote — Get the real landed cost of a product from this merchant: goods + shipping + tax for a specific destination, plus a signed `quote_token` the payment path binds
get_payment_capabilities — Which settlement rails this merchant actually accepts (e.g. coin/boson-escrow for escrowed funds that release on fulfilment, coin/usdc-base for direct). Call be
get_payment_requirements — Turn a `quote_token` from get_quote into a seller-signed payment offer to authorize. Returns `requirements` (escrow address, asset, exact atomic amount, network
get_order — Read back one of YOUR orders on this merchant: status, amount, settlement state. Use the order_id returned when you paid. You can only read orders your own agen
list_orders — List YOUR order history on this merchant, newest first. Scoped to your own agent identity — you never see another agent's orders. REQUIRES IDENTITY: Facet KYA a
post_delivery_refund — Request a refund or return on a DELIVERED order you placed on this merchant. Opens a merchant-approved refund ticket (status `requested`); it moves NO money on
wishlist_add — Save a product to YOUR wishlist on this merchant for later. Idempotent: saving the same product again updates its note and keeps the original save time. Scoped
wishlist_list — List YOUR saved items (wishlist) on this merchant, newest first. Scoped to your own agent identity, so you never see another agent's list. REQUIRES IDENTITY: Fa
wishlist_remove — Remove a product from YOUR wishlist on this merchant. Idempotent: removing something not on your list succeeds with removed:false. Scoped to your own agent iden
create_checkout — Open a checkout session for one or more catalog line items (or promote a cart with `cart_id`). Returns the session plus server-resolved `payment_handlers` (rail
complete_checkout — Complete a checkout you created and place the order by submitting the buyer-signed payment credential. This is the MONEY-MOVING leg: funds capture on-chain to t
get_checkout — Read back one of YOUR checkout sessions by id: status, totals, line items, payment_handlers. Owner-scoped, so another agent's id returns not_found. REQUIRES IDE
update_checkout — Return a checkout's CURRENT sealed snapshot. Facet seals price and items at create, so this is a no-op that reports the session plus a note: to change line item
cancel_checkout — Cancel a checkout session before completion, releasing its inventory hold. Idempotent, owner-scoped, and moves no money (distinct from an escrow refund). REQUIR
create_cart — Create a pre-checkout cart from catalog line items. A cart is a mutable scratchpad: it moves no money and holds no inventory, so it carries estimated (server-de
get_cart — Read back one of YOUR carts by id: line items and estimated totals. Owner-scoped, so another agent's id returns not_found. REQUIRES IDENTITY on a signature-requ
update_cart — Replace a cart's line items (full replacement), re-priced server-side. Owner-scoped. REQUIRES IDENTITY on a signature-required Terminal.
cancel_cart — Cancel a cart. Idempotent, owner-scoped, and moves no money. REQUIRES IDENTITY plus an Idempotency-Key on a signature-required Terminal.

Declared by sources

What the publisher says

Attributed to the source that supplied each field. Treated as claims, not facts.

No long description beyond the summary.

kind ← Official MCP Registry

name ← Official MCP Registry

summary ← Official MCP Registry

version ← Official MCP Registry

description ← Official MCP Registry

homepageUrl ← Official MCP Registry

publisherName ← Official MCP Registry

Derived by Wellknown

Capabilities

Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.

commerce.paymentsPayments100%commerce.ecommerceE-commerce Operations100%dev.terminalTerminal & Shell53%security.identityIdentity & Access53%

Provenance

Where this record came from

Every source is kept verbatim. Field changes are logged as events.

Official MCP Registryllc.facet/ucp-shopping

first seen 21 h ago · fetched 21 h agoopen ↗

Field history (6 recent events)

21 h ago · declared · summary → "The independent agent-commerce protocol for AI-agent checkout on any online store."
21 h ago · declared · description → "The independent agent-commerce protocol for AI-agent checkout on any online store."
21 h ago · declared · publisherName → "llc.facet"
21 h ago · declared · homepageUrl → "https://facet.llc"
21 h ago · declared · version → "1.0.0"
21 h ago · declared · protocols → ["mcp"]