shop.dev
shop.dev
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imperative implementation
Shop’s developer playground for product discovery, carts and agent commerce.
First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com
Answer 10 · Act 7 · Transact 5 · Score: Not yet scored
Tool inspector
lookup_catalog
answer
imperative
Resolve known product/variant IDs, GTINs, UPCs, or URLs. Use search_catalog for discovery; get_product only for unresolved options/details. Preserve IDs/URLs; ground claims in the exact offer. Amounts are minor units.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
catalog |
object | yes | — |
Raw JSON schema
{
"$defs": {
"d0": {
"description": "Reverse domain, 2+ segments.",
"examples": [
"dev.ucp.shopping.checkout",
"dev.ucp.common.identity_linking",
"com.example.loyalty_gold",
"com.example-shop.checkout",
"com.2example.cart",
"uk.co.example-shop.checkout",
"xn--p1ai.example.checkout"
],
"pattern": "^[a-z](?:[a-z0-9-]*[a-z0-9])?(?:\\.[a-z0-9](?:[a-z0-9_-]*[a-z0-9_])?)+$",
"title": "Reverse Domain Name",
"type": "string"
},
"d1": {
"description": "ISO 4217 minor units: USD2, JPY0, KWD3.",
"maximum": 9007199254740991,
"minimum": 0,
"title": "Amount",
"type": "integer"
}
},
"properties": {
"catalog": {
"allOf": [
{
"allOf": [
{
"properties": {
"context": {
"additionalProperties": true,
"allOf": [
{
"additionalProperties": true,
"description": "Coarse locality; not an address.",
"properties": {
"address_country": {
"description": "ISO 3166-1 alpha-2, e.g. US.",
"type": "string"
},
"address_region": {
"type": "string"
},
"postal_code": {
"type": "string"
}
},
"title": "Locality",
"type": "object"
},
{
"additionalProperties": true,
"properties": {
"currency": {
"description": "ISO 4217 preference/filter currency; verify output.",
"type": "string"
},
"eligibility": {
"description": "Nonidentifying reverse-domain benefits; ignore unknowns.",
"items": {
"$ref": "#/$defs/d0"
},
"type": "array",
"uniqueItems": true
},
"intent": {
"description": "Relevance hint, e.g. 'gift under $50'.",
"type": "string"
},
"language": {
"description": "BCP 47 preference, e.g. fr-CA.",
"type": "string"
},
"location": {
"description": "Opaque merchant location ID, not locality.",
"type": "string"
},
"payment": {
"description": "Advertised handlers, most preferred first; ignore unknowns.",
"items": {
"properties": {
"handler": {
"allOf": [
{
"$ref": "#/$defs/d0"
}
],
"description": "Merchant ucp.payment_handlers key."
},
"types": {
"description": "Instrument types, most preferred first; ignore unknowns.",
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"handler"
],
"type": "object"
},
"type": "array"
}
},
"type": "object"
}
],
"description": "Soft relevance/localization; checkout wins.",
"title": "Context",
"type": "object"
},
"filters": {
"allOf": [
{
"additionalProperties": true,
"properties": {
"categories": {
"items": {
"type": "string"
},
"type": "array"
},
"price": {
"description": "Inclusive context.currency minor-unit bounds.",
"properties": {
"max": {
"allOf": [
{
"$ref": "#/$defs/d1"
}
]
},
"min": {
"allOf": [
{
"$ref": "#/$defs/d1"
}
]
}
},
"title": "Price Filter",
"type": "object"
}
},
"title": "Search Filters",
"type": "object"
}
]
},
"ids": {
"items": {
"type": "string"
},
"minItems": 1,
"type": "array"
},
"signals": {
"additionalProperties": true,
"description": "Observed/verified platform facts; no buyer claims.",
"properties": {
"dev.ucp.buyer_ip": {
"type": "string"
},
"dev.ucp.user_agent": {
"type": "string"
}
},
"propertyNames": {
"allOf": [
{
"$ref": "#/$defs/d0"
}
]
},
"title": "Signals",
"type": "object"
}
},
"required": [
"ids"
],
"type": "object"
},
{
"properties": {
"filters": {
"allOf": [
{
"properties": {
"available": {
"default": true,
"type": "boolean"
}
},
"title": "Shopify Filters",
"type": "object"
},
{
"properties": {
"condition": {
"items": {
"type": "string"
},
"type": "array"
},
"ships_from": {
"items": {
"properties": {
"country": {
"pattern": "^[A-Z]{2}$",
"type": "string"
}
},
"required": [
"country"
],
"type": "object"
},
"type": "array"
},
"ships_to": {
"properties": {
"country": {
"pattern": "^[A-Z]{2}$",
"type": "string"
},
"postal_code": {
"type": "string"
},
"region": {
"type": "string"
}
},
"required": [
"country"
],
"type": "object"
},
"shops": {
"items": {
"type": "string"
},
"maxItems": 1000,
"type": "array"
}
},
"type": "object"
}
],
"title": "Global Filters"
}
},
"type": "object"
}
],
"title": "Global Lookup Request",
"type": "object"
},
{
"properties": {
"context": {
"additionalProperties": true,
"properties": {
"address_country": {
"type": "string"
},
"address_region": {
"type": "string"
},
"currency": {
"type": "string"
},
"intent": {
"type": "string"
},
"language": {
"type": "string"
},
"postal_code": {
"type": "string"
}
},
"type": "object"
},
"filters": {
"additionalProperties": true,
"description": "Hard requirements; fields AND, stated lists OR. Verify the offer.",
"properties": {
"available": {
"default": true,
"description": "true/omitted: sale-ready only; false: include unavailable.",
"type": "boolean"
},
"categories": {
"description": "OR taxonomy category GIDs.",
"items": {
"type": "string"
},
"type": "array"
},
"condition": {
"description": "OR new/secondhand; omit for either.",
"items": {
"type": "string"
},
"type": "array"
},
"price": {
"properties": {
"max": {
"type": "integer"
},
"min": {
"type": "integer"
}
},
"type": "object"
},
"ships_from": {
"description": "OR origins; omit for any.",
"items": {
"properties": {
"country": {
"description": "ISO 3166-1 alpha-2.",
"pattern": "^[A-Z]{2}$",
"type": "string"
}
},
"required": [
"country"
],
"type": "object"
},
"type": "array"
},
"ships_to": {
"description": "Hard destination; context may supply it if omitted; matching context may refine estimates.",
"properties": {
"country": {
"description": "ISO 3166-1 alpha-2.",
"pattern": "^[A-Z]{2}$",
"type": "string"
},
"postal_code": {
"type": "string"
},
"region": {
"type": "string"
}
},
"required": [
"country"
],
"type": "object"
},
"shops": {
"description": "OR seller.id Shop GIDs/domains; check unmatched messages.",
"items": {
"type": "string"
},
"maxItems": 1000,
"type": "array"
}
},
"type": "object"
},
"ids": {
"description": "Up to 50 exact IDs/URLs; preserve returned values.",
"items": {
"type": "string"
},
"maxItems": 50,
"minItems": 1,
"type": "array"
},
"signals": {
"additionalProperties": true,
"properties": {
"dev.ucp.buyer_ip": {
"type": "string"
},
"dev.ucp.user_agent": {
"type": "string"
}
},
"type": "object"
}
},
"required": [
"ids"
],
"type": "object"
},
{
"not": {
"required": [
"attribution"
]
}
},
{
"not": {
"required": [
"view"
]
}
}
],
"type": "object"
}
},
"required": [
"catalog"
],
"type": "object"
}
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