Standard Blanks

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Search blank apparel, check availability, price orders and build a cart on standardblanks.com.

Commerce

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https://standardblanks.com/mcp/shop

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build_cart

Create a cart of SKUs and quantities and return a link (claimUrl) that opens it in the shopper's cart on standardblanks.com, where they review it and check out. It does not take payment or place an order. Give the shopper the link. Limits: 40 lines, $5,000 of merchandise; the link works for 7 days.

itemsarray, required

1–40 lines.

notestring

Optional context for our support team, e.g. what the order is for. Not shown on the cart.

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Tools (5)

Tool list last changed Oct 26, 2026.

build_cart

Argument	Type	Description
note	string	Optional context for our support team, e.g. what the order is for. Not shown on the cart.
items*	array	1–40 lines.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "items"
  ],
  "properties": {
    "note": {
      "type": "string",
      "maxLength": 500,
      "description": "Optional context for our support team, e.g. what the order is for. Not shown on the cart."
    },
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "sku",
          "qty"
        ],
        "properties": {
          "qty": {
            "type": "integer",
            "maximum": 10000,
            "minimum": 1,
            "description": "Units of this SKU."
          },
          "sku": {
            "type": "string",
            "maxLength": 64,
            "minLength": 1,
            "description": "A variant SKU from get_product (called with a color)."
          }
        }
      },
      "maxItems": 40,
      "minItems": 1,
      "description": "1–40 lines."
    }
  }
}

get_inventory

Whether one variant is available now: in_stock, low (a dozen or fewer), out_of_stock, or unknown. Pass its SKU, or the product slug with color and size.

read-only

Argument	Type	Description
sku	string	A variant SKU from get_product (called with a color).
size	string
slug	string	Product slug, with color and size.
color	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "sku": {
      "type": "string",
      "maxLength": 64,
      "minLength": 1,
      "description": "A variant SKU from get_product (called with a color)."
    },
    "size": {
      "type": "string",
      "maxLength": 20,
      "minLength": 1
    },
    "slug": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "Product slug, with color and size."
    },
    "color": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1
    }
  }
}

get_product

Details for one product, by slug (from search_catalog) or by any of its variant SKUs: description, colors with images and availability, sizes, the size chart (garment measurements), fabric specs, and how well it takes each decoration method (screen print, DTG, embroidery, sublimation, heat-transfer vinyl, discharge, DTF). Pass `color` to also get that color's sizes, each with its SKU and availability.

read-only

Argument	Type	Description
sku	string	A variant SKU from get_product (called with a color).
slug	string	Product slug from search_catalog.
color	string	A color name exactly as listed in `colors`.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "sku": {
      "type": "string",
      "maxLength": 64,
      "minLength": 1,
      "description": "A variant SKU from get_product (called with a color)."
    },
    "slug": {
      "type": "string",
      "maxLength": 200,
      "minLength": 1,
      "description": "Product slug from search_catalog."
    },
    "color": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "A color name exactly as listed in `colors`."
    }
  }
}

quote

Exact prices for a set of SKUs and quantities, as the Standard Blanks cart would charge them: each line's unit price (set by its style's total units), the merchandise subtotal, shipping, and the total before tax. Pass ship_to_zip for that ZIP's shipping and estimated delivery dates (estimates, not guarantees); without it, shipping assumes a contiguous-US address and no dates are given. Sales tax is calculated at checkout. Creates nothing.

read-only

Argument	Type	Description
items*	array	1–40 lines.
ship_to_zip	string	5-digit US ZIP code.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "items"
  ],
  "properties": {
    "items": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "sku",
          "qty"
        ],
        "properties": {
          "qty": {
            "type": "integer",
            "maximum": 10000,
            "minimum": 1,
            "description": "Units of this SKU."
          },
          "sku": {
            "type": "string",
            "maxLength": 64,
            "minLength": 1,
            "description": "A variant SKU from get_product (called with a color)."
          }
        }
      },
      "maxItems": 40,
      "minItems": 1,
      "description": "1–40 lines."
    },
    "ship_to_zip": {
      "type": "string",
      "pattern": "^\\d{5}$",
      "description": "5-digit US ZIP code."
    }
  }
}

search_catalog

Search Standard Blanks' blank apparel by keywords and filters. Returns up to 20 products with name, brand, slug, the lowest single-unit price ("from" price, in cents), availability, image and product page URL. When the query names a color or size, matchedColors lists the colors of that style that match (best first) and url opens the page on that color; an empty matchedColors for a query that named a color means that style is not sold in it. signal reports typo corrections and any words the search had to drop. Use the slug with get_product.

read-only

Argument	Type	Description
fit	string	Cut of the garment.
size	string	Only styles offered in this size.
sort	string	Order of results. Default: relevance with a query, popular without one.
brand	string	Exact brand name, e.g. 'BELLA + CANVAS'.
color	string	Color family.
limit	integer	Results to return (default 10).
query	string	Keywords: brand, style number or product words, e.g. 'heavyweight hoodie' or 'bella canvas 3001'.
weight	string

{ "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "fit": { "enum": [ "classic", "relaxed", "oversized", "slim", "athletic", "retail" ], "type": "string", "description": "Cut of the garment." }, "size": { "enum": [ "xxs", "xs", "s", "m", "l", "xl", "2xl", "3xl", "4xl", "5xl", "6xl", "tall" ], "type": "string", "description": "Only styles offered in this size." }, "sort": { "enum": [ "relevance", "price-asc", "price-desc", "popular" ], "type": "string", "description": "Order of results. Default: relevance with a query, popular without one." }, "brand": { "type": "string", "maxLength": 100, "description": "Exact brand name, e.g. 'BELLA + CANVAS'." }, "color": { "enum": [ "blacks", "whites", "greys", "blues", "reds", "greens", "yellows", "oranges", "purples", "pinks", "browns", "neutrals", "others" ], "type": "string", "description": "Color family." }, "limit": { "type": "integer", "maximum": 20, "minimum": 1, "description": "Results to return (default 10)." }, "query": { "type": "string", "maxLength": 200, "description": "Keywords: brand, style number or product words, e.g. 'heavyweight hoodie' or 'bella canvas 3001'." }, "weight": { "enum": [ "ultralight", "light", "standard", "mid-heavy", "heavy", "heavyweight" ], "type": "string", "description": "Fabric weight band (ultralight 0-4 oz, light 4-5 oz, standard 5-6 oz, mid-heavy 6-7 oz, heavy 7-9 oz, heavyweight 9+ oz)." }, "category": { "enum": [ "accessories", "bags", "bottoms", "fleece-core-crew", "fleece-core-hood", "fleece-premium-crew", "fleece-premium-hood", "headwear", "infant-baby", "knits-layering", "outerwear", "polos", "t-shirts-core", "t-shirts-long-sleeve", "t-shirts-premium", "wovens" ], "type": "string", "description": "Category slug." }, "in_stock": { "type": "boolean", "description": "Only styles with stock now." }, "max_price": { "type": "number", "maximum": 10000, "description": "Highest single-unit price, in US dollars.", "exclusiveMinimum": 0 }, "min_price": { "type": "number", "maximum": 10000, "description": "Lowest single-unit price, in US dollars.", "exclusiveMinimum": 0 }, "decoration": { "enum": [ "screen-print", "dtg", "embroidery", "sublimation", "vinyl", "discharge", "dtf" ], "type": "string", "description": "Only styles rated good or best for this decoration method (screen print, DTG, embroidery, sublimation, heat-transfer vinyl, discharge, DTF)." }, "similar_to": { "type": "string", "description": "A style's slug: list the styles comparable to it (same garment, other brands and price tiers), leaving it out. \"alternative to gildan 18500\" in `query` does the same." }, "cheaper_than": { "type": "string", "description": "A style's slug: the comparable styles priced below it." }, "youth_and_adult": { "type": "boolean", "description": "Only styles a team can order in both kids' and adult sizes: one style whose sizes span both, or one of a manufacturer's matching youth/adult pair (e.g. Gildan 5000 and 5000B)." } } }