Schema | Shopping MCP Server

Shopping MCP Server

Describes the environment variables required to run the server.

Name	Required	Description	Default
`HOST`	No	HTTP listener host for 'http' or 'dual' transport
`PORT`	No	HTTP listener port for 'http' or 'dual' transport
`NODE_ENV`	No	Set to 'production' when deploying
`EBAY_MOCK`	No	Set to 'true' for the deterministic offline catalog	false
`JWT_ISSUER`	No	Optional JWT claim validation value
`JWT_SECRET`	No	Shared Better Auth signing secret; use a long random secret outside development
`EBAY_APP_ID`	No	eBay application ID for live Browse/Taxonomy calls
`DATABASE_URL`	No	Postgres/Neon connection string; takes precedence over file storage
`EBAY_CERT_ID`	No	eBay certificate ID for live Browse/Taxonomy calls
`JWT_AUDIENCE`	No	Optional JWT claim validation value
`DATABASE_FILE`	No	Local JSON store path, or ':memory:' for tests
`SHOPPING_TAX_RATE`	No	Decimal tax rate used in checkout, for example '0.0725'
`MCP_TRANSPORT_TYPE`	No	Transport type: 'stdio', 'http', or 'dual'; otherwise NitroStack selects stdio in development and dual in production
`EBAY_MARKETPLACE_ID`	No	eBay marketplace, default `EBAY_US`	EBAY_US

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tasks`	{ "list": {}, "cancel": {}, "requests": { "tools": { "call": {} } } }
`tools`	{ "listChanged": true }
`prompts`	{ "listChanged": true }
`resources`	{ "subscribe": true, "listChanged": true }

Functions exposed to the LLM to take actions

Name	Description
search_productsB	Search the eBay catalog for products matching a text query and optional category.
get_productA	Retrieve current details and pricing for one eBay item.
get_categoriesA	Retrieve the eBay category tree, or a category subtree when category_id is supplied.
add_to_cartC	Add a product to the authenticated user cart. Never pass a user ID; it comes from the JWT subject.
view_cartA	View the authenticated user cart and its current item subtotal.
update_cart_itemA	Set an item quantity in the authenticated user cart; quantity 0 removes it.
checkoutA	Create a short-lived checkout quote using live eBay prices and availability. This does not place an order.
place_orderA	Place an authenticated user order from an unexpired checkout quote and clear the cart.
get_orderB	Retrieve one order belonging to the authenticated user.
order_historyA	List orders belonging only to the authenticated user, newest first.
cancel_orderA	Cancel an order belonging to the authenticated user when it has not already been cancelled.

Interactive templates invoked by user choice

Name	Description
`shopping_assistant`	A reusable prompt for researching products and preparing a safe cart workflow.

Contextual data attached and managed by the client

Name	Description
`Shopping Catalog Guide`	How to search eBay products and safely inspect current item details.
`Featured Products`	A small catalog sample for demos and clients that need an initial shopping view.
`Shopping Categories`	The current eBay category tree used by the product search tool.
`Cart Guide`	Instructions for adding, viewing, and updating cart items.
`Order Guide`	The safe checkout and order-management sequence for the shopping MCP server.
`Order Statuses`	Supported order lifecycle states.
`Health Checks`	Current health status of all registered health checks
`Product Search Results`	UI component for Product Search Results
`Product Card`	UI component for Product Card
`Category Tree`	UI component for Category Tree
`Cart Summary`	UI component for Cart Summary
`Order Confirmation`	UI component for Order Confirmation
`Order Summary`	UI component for Order Summary
`Order Cancellation`	UI component for Order Cancellation
`Widget Examples`	Provides metadata and examples for all registered UI widgets

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