UCP Checker
Check a store

create_cart

Create a new cart (checkout session). Returns the full cart state including the checkout_session_id needed for get_cart and update_cart. You must call this before using get_cart or update_cart.

11,681verified stores declare the create_cart tool
62.1%of the verified stores we check

Who declares it

verified stores we check
By store platform
Shopify 94%Jumpseller 4%Boutir 2%
By release
2026-08-2599.9%
2026-04-080.1%

Examples

12 of 11,681, highest UCP Score first
agentdiet.dev Shopware · 2026-08-25 alpha-stream.agentdiet.dev Shopware · 2026-08-25 arxiv-digest.agentdiet.dev Shopware · 2026-08-25 assay.agentdiet.dev Shopware · 2026-08-25 assistant-experiments.vercel.app Custom or not identified · 2026-04-08 company-enrich.agentdiet.dev Shopware · 2026-08-25 cve-intel.agentdiet.dev Shopware · 2026-08-25 defi-yield.agentdiet.dev Shopware · 2026-08-25 devucp.netsgroup.com Custom or not identified · 2026-08-25 domain-osint.agentdiet.dev Shopware · 2026-08-25 email-verify.agentdiet.dev Shopware · 2026-08-25 github-audit.agentdiet.dev Shopware · 2026-08-25

Each store has its own status page. To find more, search the directory.

Input schema

inputSchema
{
    "type": "object",
    "required": [
        "items"
    ],
    "properties": {
        "buyer": {
            "type": "object",
            "properties": {
                "email": {
                    "type": "string"
                },
                "last_name": {
                    "type": "string"
                },
                "first_name": {
                    "type": "string"
                },
                "phone_number": {
                    "type": "string"
                }
            },
            "description": "Optional buyer information"
        },
        "items": {
            "type": "array",
            "items": {
                "type": "object",
                "required": [
                    "variant_id",
                    "quantity"
                ],
                "properties": {
                    "quantity": {
                        "type": "number",
                        "description": "Quantity to add"
                    },
                    "variant_id": {
                        "type": "string",
                        "description": "Product variant ID"
                    }
                }
            },
            "description": "Items to add to the cart (at least one required)"
        },
        "currency": {
            "type": "string",
            "description": "Currency code for the cart (e.g. 'usd', 'eur'). Defaults to 'usd'."
        }
    }
}

Explore protocol data