io.usefulapiPublished by usefulapi.ioOfficial publisherv1.16.4Updated Nov 7, 2026
Browse the CustomCat catalog, your products and designs; check shipping; create and cancel orders.
The publisher's own server: Ably MCP by usefulapi
Connects an assistant to a CustomCat print-on-demand account to browse catalog, products and designs, quote shipping, and place or cancel orders.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.usefulapi%2Fcustomcat/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"customcat-by-usefulapi": {
"type": "http",
"url": "https://customcat.usefulapi.io/mcp"
}
}
}Browse the CustomCat catalog, your products and designs; check shipping; create and cancel orders.
Live endpoint: https://customcat.usefulapi.io/mcp · Homepage: https://usefulapi.io/customcat
https://customcat.usefulapi.io/mcp.claude mcp add --transport http customcat https://customcat.usefulapi.io/mcp, then run /mcp to log in.Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your CustomCat credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/customcat/
On first connect you'll paste your CustomCat API key (the CustomCat app → Settings).
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this server only. Subscribe with customcat_upgrade (it returns a Stripe Checkout link). Cancel any time with customcat_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running customcat_upgrade before then undoes the cancel. Or write to [email protected].
MIT © usefulapi. Not affiliated with or endorsed by CustomCat.
Source: servers/customcat/README.md at commit 4046075
List your products
List the products you set up in CustomCat (a design on one or more catalog items) with variants, SKUs, cost, price, stock flag and design images. Use the variant SKUs when placing an order for these products. GET /product.
pagelimitsince_idupdated_sinceGet one of your products
One of your CustomCat products by id (e.g. 22-2580581): variants, SKUs, cost, price, options, designs. GET /product/{product_id}.
product_idrequiredList your designs
List the designs uploaded to your CustomCat account: id, name, tags, image URLs, default product and last-updated time. GET /design.
pagelimitsince_idupdated_sinceList catalog categories
The CustomCat catalog categories (Digisoft, Sublimation) and their subcategories (e.g. T-Shirts, Sweatshirts, Bags), to narrow customcat_list_catalog. GET /catalogcategory.
Takes no parameters.
List the blank-product catalog
Browse the full CustomCat catalog of printable blank products (the items you can order with your own artwork). Filter by category and subcategory from customcat_list_catalog_categories. The reply carries the total in `total`. GET /catalog.
pagelimitcategorysubcategoryGet a catalog product
One catalog product by numeric id with its colors, sizes and SKUs. GET /catalog/{catalog_product_id}.
catalog_product_idrequiredGet a catalog SKU (stock check)
One catalog SKU with its price and stock status. Use it before ordering: a SKU that is out of stock, discontinued or invalid makes the order fail. GET /catalog/sku/{catalog_sku_id}.
catalog_sku_idrequiredList shipping methods
The shipping methods CustomCat offers for a destination country (ids and names). The method name is required when placing an order. GET /shipping.
country_codeGet the shipping cost for items
Calculate the shipping cost of one shipping method for a destination and a list of catalog SKUs with quantities. Read-only quote: it places nothing. POST /shipping/{shipping_id} (shipping_id from customcat_list_shipping_methods).
itemsrequiredstateshipping_idrequiredcountry_codeGet order status
Status of an order by YOUR order id: order status (Pending, Verified, Shipped), per-item production status, shipments with tracking ids, totals and the ship-to address. Set sandbox=true to look up a sandbox test order. GET /order/status/{order_id}.
sandboxorder_idrequiredPlace an order
WRITE: place an order for CustomCat to print and ship. This CHARGES the payment method on file in your CustomCat account (product cost + shipping; a front+back print adds $5 per line item) unless sandbox=true, which only validates the order. A real order (sandbox=false) also needs confirm=true, set only after the user confirmed it. The order id is yours and must be new (a duplicate is rejected). Needs the Write API key. Check stock with customcat_get_catalog_sku and the method name with customcat_list_shipping_methods first, and confirm the details with the user before calling. POST /order/{order_id}.
itemsrequiredconfirmsandboxrequiredorder_idrequiredshipping_ziprequiredshipping_cityrequiredshipping_emailrequiredshipping_phonerequiredshipping_staterequiredshipping_methodrequiredshipping_countryrequiredshipping_address1required+3 moreCancel an order
WRITE: cancel (delete) an order by YOUR order id. CustomCat can only cancel an order that has not gone into production; one already printed or shipped is refused. Needs the Write API key. Confirm with the user first. DELETE /order/{order_id}.
order_idrequired100% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
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{ "mcpServers": { "customcat": { "url": "https://customcat.usefulapi.io/mcp" } }}